Page 1
60 1
Battery Load, Charging System, Starting System and
Voltage Drop Tester for Truck Maintenance
Optional J1708 Hookup
Complement your battery testing with complete system test including a
voltage drop test that measures the voltage drop of the starting and
charging circuit. The BCT-200J is automated and menu driven with
simple hook-up methods for testing the negative and positive legs in one
operation. Special tests are included for the magnetic switch circuit.
®
With PM TEST
AGM Compatible
U.S. Patent No.
6,061,638
6,359,442
D442,503
6,771,073
VDROP is a
trademark of
Auto Meter Products
BCT-200J Instruction Manual
Page 2
2 59
CONGRATULATIONS!
You have purchased one of Auto Meter's hand-held Voltage Drop Analyzers. It is
designed to test each circuit of a trucks starting and charging circuit with speed
and accuracy. If you should have any questions about your tester or the testing
procedures please see back cover for contact information.
BCT-200J
Test Capacity ..........................120 Amp algorithmic load
Battery sizes ...........................200-1600 CCA
Digital Display with backlight ...1" x 2.5" - 4 line x 16 character
Volt Ranges .............................Digital 0-40V
Cooling ....................................Vented
Load Clamps ...........................4 ft., 6 Gauge
External Leads ........................20ft 16 Gauge
Size .........................................6" x 9 1/2" x 1 7/8"
Memory ...................................stores the last 80 tests
Internal Battery ........................9 Volt Alkaline
Post Adapter Kit ......................For group 31 batteries
Optional AC-25 ........................6 pin to 9 pin J1708 Adapter
Optional AC-26 ........................J1708 Cable
Optional PR-15 .......................Infrared printer
Optional AC24J .......................carrying case
Optional AC-10 .......................PC Interface adapter cord
Optional AC-27 .......................Alternator Adapters
Optional AC-35 .......................PC download program
Weight .....................................4.27 lbs.
What to Expect from the BCT-200J:
Immediately recognize a bad battery. Also perform a complete voltage drop
test analysis on 12 and 24 Volt systems. Load test 12 Volt batteries, load a 12
Volt alternator and do a check on a 24 Volt alternator. The BCT-200J is a portable
full-featured menu-driven battery tester and voltage drop tester that provides
quick, professional load results using Auto Meter's advanced algorithmic load.
The BCT-200J has the option of using a J1708 cable. It is professionally accurate
and detailed test results are LCD displayed after each test and can be reviewed
and printed from memory.
CAUTION: The BCT-200J grill may get hot after repeated use. Be sure to
hold the unit from the side grips only. Keep hands away from the grill.
NOTES
Page 3
58 3
TABLE OF CONTENTS
Specications --------------------------------------------------------------- 2
Safety
------------------------------------------------------------------------- 4
Cause of Battery Failure
------------------------------------------------- 4
Inspection and Visual Check
-------------------------------------------- 5
Controls and Functions
--------------------------------------------------- 6
Test Sections
1. PM Test --------------------------------------------------------7
2. Battery Bank Test ----------------------------------------8-9
3. Individual Battery Test -------------------------------10-12
4. Charging Cable VDrop Test ------------------------13-15
* Single
* Dual
5. Alternator Output Test --------------------------------16-23
* Standard
* Remote Sense
6. Main Starting Cable VDrop Test ------------------24-29
* Single
* Split
7. Magnetic Circuit VDrop Test ------------------------30-32
* Without IMS
* With IMS
8. Key Circuit VDrop Test -------------------------------33-36
* Without OCP
* With OCP
9. Liftgate VDrop Tests ----------------------------------37-39
10. Alternator Bench Test --------------------------------40-45
Maintenance -------------------------------------------------------------- 46
Clamp Replacement
---------------------------------------------------- 46
Battery Replacement
--------------------------------------------------- 46
Other Menu Options
Review Tests
-------------------------------------------------------------- 47
(Optional) Printer ------------------------------------------------- 47
Printing Test Results --------------------------------------------- 48
Volt Meter
------------------------------------------------------------------ 48
J1708 Data
---------------------------------------------------------------- 48
Setup ----------------------------------------------------------------50-51
PC Download Innterface
----------------------------------------------- 46
Using Windows
----------------------------------------------------- 47
Downloading Test Information
---------------------------------------- 48
Capturing Text in Microsoft Excel
------------------------------------ 49
About -------------------------------------------------------------------- 56
Warranty Information
---------------------------------------------------- 57
Chart -------------------------------------------------------------------- 58
Test Equipment
Test Equipment
Page 4
4 57
SAFETY
n Carefully read all operating instructions
before operating the BCT-200J
n Wear eye protection when working on
batteries.
n Be sure each test is complete before
removing load clamps to prevent arcing
and potential explosion from battery gases.
Never remove load clamps while testing.
Keep sparks, ames or cigarettes away from
battery.
n Keep hair, hands, and clothing as well as
tester leads and cords away from moving
blades and belt.
n Provide adequate ventilation to remove exhaust.
n In extremely cold temperatures check for frozen
electrolyte uid or swelled case before applying load. Do not attempt to Load Test or
charge a battery under 20o F. (-7oC.). Allow the battery to warm to room temperature
before testing or charging.
n Warning! BCT-200J can only be attached to a Delco Remy Bench Tester and used
in prescribed manner. It should never be attached to any other tester or charging unit.
Damage may result.
CAUSE OF BATTERY FAILURE
n Incorrect Application: Wrong size battery may have inadequate cold cranking rating
for original vehicle specications.
n Incorrect Installation: Loose battery hold-downs cause excessive vibration, which
can result in damage to the plates.
n Improper Maintenance: Low electrolytic uid and corrosion on battery connections
can greatly reduce battery life and effect battery performance.
n Internal Connections: Make sure internal connections of entire charging system
meet proper specications.
n Age of Battery: If the date code on the battery is old, test failure may indicate the
need of replacement.
n Overcharging: Overcharging caused by a high voltage regulator setting or incorrect
battery charging can cause excessive gas, heat and water loss.
n Undercharging: Undercharging caused by a faulty charging system or low voltage
regulator setting can cause lead sulfate to gradually build up and crystallize on the
plates, greatly reducing the battery’s capacity and ability to be recharged.
n Cycling: Excessive drain on battery when alternator is not operating.
1 YEAR FROM DATE OF PURCHASE CABLES 90 DAYS
The manufacturer warrants to the consumer that this product will be free from defects in
material or workmanship for a period of one (1) year from the date of original purchase
(90 Days for cables).
Products that fail within this 1 year warranty period will be repaired or replaced at the
manufacturer's option to the consumer when determined by the manufacturer that the product
failed due to defects in material or workmanship. This warranty is limited to the repair or
replacement of parts the necessary labor by the manufacturer to effect the repair or replacement
of the product. In no event shall the manufacturer be responsible for special, incidental or
consequential damages or costs incurred due to the failure of this product.
Improper use, accident, water damage, abuse, unauthorized repairs or alterations voids this
warranty. The manufacturer disclaims any liability or consequential damages due to breach of
any written or implied warranty on its test equipment.
WARRANTY AND SERVICE INFORMATION
Warranty claims to the manufacturer's service department must be transportation prepaid
accompanied with dated proof of purchase. This warranty applies only to the original purchaser
is non-transferable. Shipper damage incurred during return shipments is not covered under this
warranty. It is the responsibility of the shipper (the customer returning the Test Equipment)
to package the tester properly to prevent any damage during return shipment. Repair costs for
such damages will be charged back to shipper (customer returning the Test Equipment). Protect
the product by shipping in the original carton. Add plenty of over-pack cushioning such as
crumpled up newspaper.
LIMITED WARRANTY
Test Equipment
Page 5
56 5
Valid automotive electrical system testing depends on all the components
being in good operating condition. In addition, the battery MUST have
sufcient charge for testing. Carefully perform the following before
attempting electrical diagnosis.
nInspect Battery for terminal corrosion, loose broken posts, cracks in
the case, loose hold-downs, low electrolyte level, moisture, and dirt
around the terminal.
nImportant Note: A known defective battery must be replaced
before proceeding with any test on the charging or starting
system.
nInspect Belts for cracks, glazed surface and fraying. Tighten loose
belts. Inspect auto-tensioner for proper belt tension.
nInspect Starting System. Check starter, solenoid, and alternator for
loose connections, loose mounts and frayed or cracked wires.
Loose Hold-downs
Corrosion
Check for loose
belts and auto
tensioner.
Gives the version of the software.
NOTE: This screen is for reference
only. The software version
and date shown in the screen
illustration may not match
what is displayed on the
actual tester.
The program can be updated to the most recent version by reashing the
memory. Before turning the unit on hold the (N Exc.) and the (Y Enter) key down
simultaneously. The following will appear.
When a computer can be attached to the
unit in the same way the test data can
be downloaded. “REFLASHING!”will
then appear.
The software will be available from a CD or can be downloaded from our website.
Contact Auto Meter for more information.
ABOUT
INTELLI-CHECK2J
VERSION 4.12
DATE 05/16/2013
COPYRIGHT 1999
J1708
SETUP
DOWNLOAD
>ABOUT
READY (V2.00)
REFLASHING!
VISUAL CHECK
INSPECTION
Page 6
6 55
BCT-200J
Engineered &
Manufactured by
with Data Bus Communication
2511-2089
CONTROLS AND FUNCTIONS
LCD:
Displays menus and test
results.
KEYS:
When each key is pressed,
a beep sounds to assure
contact has been made.
On/Off Key:
This is the manual on/off key.
Y Enter Key:
This key selects the next
menu, the cursor line item
and answers ‘yes’ to a test
progression.
+Up Key:
This key moves the cursor
up in order to select a menu
line item. It also increments a
value.
-Down Arrow Key:
This key moves the cursor
down in order to select a
menu line. It also decrements
a value.
N Esc Key:
This key cancels a test or progression. It also returns to the previous menu.
Print Key:
When the BCT-200J is pointed toward or at the optional PR-15 printer,
pressing the print key will cause the test results to be printed.
Infrared Print Light:
Data is sent to the infrared printer
when the print button is pressed.
J1708 and PC
Download Jack:
Adapter cord inserts
here.
Retractable Hanging Hook:
Hang unit at various points
to free hands for clamp
attachment.
AUTO METER/REMY
INTELLI-CHECK2J
05/21/13 10:32AM
'Y' FOR MENU
CAPTURING TEXT
5. Using Microsoft Excel
Note: For other software applications consult your software manual.
nUnder Column Date Format select “General” then “Finish”
nAfter the le is loaded you can delete unwanted rows and format
columns as desired. The following are labels for identifying the 8
columns of information.
nMake sure menu is displayed as shown in illustration page 20 step 3.
nSelect “Capture Text” in the Transfer Menu.
nType in c:\my documents\download.txt and then select “Start.”
nPress “1” to download. When nished select Capture Text again
from the Transfer Menu then select Stop.
nLaunch Microsoft Excel and select open le.
nUnder “Files of Type” at the bottom of the open le window select All
Files (*.*).
nHighlight your “download.txt” le then select Open.
nSelect “Delimited” and start at row 1 then “Next”
nSelect “Comma” then “Next”
BCT-200J
Test Labels
55
Date Code N/A N/A N/A N/A N/A Condition Tech ID Vehicle ID VIN Time/Date
Date Code N/A N/A N/A N/A N/A Condition Tech ID Vehicle ID VIN Time/Date
Date Code N/A N/A N/A N/A N/A Condition Tech ID Vehicle ID VIN Time/Date
Engine Speed R-Term Engine Speed N/A N/A Code N/A Tech ID Vehicle ID VIN Time/Date
Engine Speed R-Term Engine Speed N/A N/A Code N/A Tech ID Vehicle ID VIN Time/Date
Oil Temp Amb. Temp N/A N/A N/A Code N/A Tech ID Vehicle ID VIN Time/Date
Oil Temp Amb. Temp N/A N/A N/A Code N/A Tech ID Vehicle ID VIN Time/Date
Page 7
54 7
1
PM TEST
>CONNECT SMALL
CLIPS TO THE
ALTERNATOR
'Y' TO CONTINUE
>START ENGINE
AND THEN REV TO
GOVERNED SPEED
'N' TO CANCEL
11. 12.
10.
LOAD BATTERY
PLEASE WAIT
>ENTER NUMBER OF
BATTERIES: 4
USE +/-.
'Y' TO CONTINUE
3.2.
>PM TEST
BATTERY TEST
BATTERY BANK
V DROP MENU
1.
AUTOMETER/REMY
INTELLI-CHECK2J
05/21/13
'Y' FOR MENU
>SET IDLE AT
ABOUT 1000 R.P.M.
'Y' TO CONTINUE
16.
#13 PM CHECK
BATTERIES: PASS
STARTING: PASS
CHARGING: PASS
18.17.
TESTING ALT.
PLEASE WAIT
>ENTER SINGLE
CCA: 700
12.89 V
'Y' TO CONTINUE
8.
TESTING BANK
PLEASE WAIT
9.
>ENTER BATT TYPE
AGM USE +/-
12.89 V
'Y' TO CONTINUE
7.
>CONNECT LARGE
LEADS TO THE
BATTERY BANK
'Y' TO CONTINUE
4.
>ENTER BATTERY
TEMP: 40F
12.89 V
'Y' TO CONTINUE
6.
>BANK MUST BE
STABILIZED FOR
VALID RESULTS
'Y' TO CONTINUE
5.
13. 14. 15.
TESTING ALT.
AT GOVERNED SPEED
14.12 V
TESTING STARTER
PLEASE WAIT
TESTING ALT.
PLEASE WAIT
#13 PM TEST
GOOD BATTERIES
12.89 V CHRG 100%
19.
#13 PM TEST
CRANK V: 10.91 V
CRANK A: 570A
VDROP@500A: 0.41
20.
#13 PM TEST
GOOD REG: 14.09 V
RIPPLE: 2.70M V
21.
The PM Test should only be used
during a time when the vehicle
is in the shop for a PM Service,
NOT when the vehicle is having
electrical system issues. For a
vehicle with a suspected electrical
problem use the individual
tests starting with the batteries,
then the cables, and finally the
alternator or starter.
DOWNLOAD TEST INFORMATION
4. PC Screen Menu
nIf the BCT-200J is properly connected to your PC and the LCD
shows “CONNECT ANALYZER TO A PC” the menu should
automatically be displayed in Hyper Terminal.
nPress “1” to download the stored data.
To save the information displayed see “Capture text into
Microsoft Excel.” See BCT-200J test labels below for
identication.
nPress “Enter” to return to Menu.
nPress “Enter” to return to Menu.
nPress “3” to Exit.
HyperTerminal
Windows
BCT-200J
Test Labels
Battery Bank Beginning Volts Loaded Volts Rated CCA # of Batteries Temperature N/A Amb. Temp
12V Battery Beginning Volts Loaded Volts Rated CCA Est. CCA Temperature 1ST CCA Amb. Temp
24V Battery Beginning Volts N/A N/A N/A Temperature N/A Amb. Temp
12V Alter. Beginning Volts Loaded Volts mVAC Peak Volts mVAC Rated Current R-Term
24V Alter. Beginning Volts Loaded Volts mVAC Peak Volts N/A Rated Current R-Term
12V Starter Beginning Volts Loaded Volts Ext Volts Pos Drop Cranking Volts Pos Drop Draw
Small Red Clamp
Large Red Clamp
Page 8
8 53
2
BATTERY BANK TEST
>ENTER NUMBER OF
BATTERIES: 3
USE +/-.
'Y' TO CONTINUE
>INSPECT BANK FOR
DIRT, LEAKS OR
CRACKS.
'Y' TO CONTINUE
>INSPECT POSTS
AND CONNECTIONS
'Y' TO CONTINUE
NOTE: When performing a PM Test the tester will automatically run the Battery
Bank Test to make sure that the battery bank passes. Therefore, you need only
use the Battery Bank Test for testing the battery bank only. The Battery Bank
Test is designed for preventative maintenance only. If there is an electrical
problem you should test each battery individually.
You will be asked to enter the
number of batteries in the system.
The number selected in the last
test will appear. Simply use the
(+) or (-) key to select the correct
number. Then press (‘Y’ Enter) to
continue.
Always check batteries, battery posts
and connections before testing the
batteries. If the batteries or posts
are damaged replace the batteries.
Make sure the batteries are free from
dirt, cracks and leaks and that the
connections are clean and secure.
nSelect Windows Start
nThen “Programs”
nThen “Accessories”
nThen “Communications”
nThen Click “Hyper-Terminal”
nDouble Click “Hypetrm.exe” application
nType in a name for your connection
nSelect an icon for future identication
nSelect “OK”
nSelect the COM port number you have
previously
identied in step 1.
nSelect “OK” and select the following
from the pull down menus:
Bits per second 9600
Data bits 8
Parity None
Stop Bits 1
Flow Control None
nSelect “OK”
Note: The BCT-200J will interface with any basic (ANSI) terminal
emulation software. Most operating systems contain a program that
will do this. Following are instructions for Windows. For other operating
systems consult the Manual for that system.
3. Opening Windows
HyperTerminal:
USING WINDOWS 98/2000/NT/XP
Page 9
52 9
BATTERY BANK (Cont.)
>CONNECT LARGE
LEADS TO THE
BATTERY BANK
'Y' TO CONTINUE
>BANK MUST BE
STABILIZED FOR
VALID RESULTS
'Y' TO CONTINUE
You will be instructed to connect
the large leads. Connect the red
clamp to the main positive cable
coming to the bank and the black
clamp to the main negative cable
leaving the bank.
Using the (+) or (-) key adjust the
temperature in units of 10 degrees.
This should be the temperature of the
battery(S). Consider where the vehicle
has been before adjusting.
Use the (+) or (-) key to select the
battery type, either AGM or regular
lead-acid.
Using the (+) or (-) key adjust the CCA
of an individual battery. If each battery
varies in CCA approximate an average. If
the CCA is unknown consider that most
truck batteries range from 625-950 CCA.
Press (Y Enter) to begin the test
and wait for results. Example is
at the top of page 10 (Individual
Battery Test).
Black Clamp at Negative Main
Red Clamp at Positive Main
>ENTER BATTERY
TEMP. 70F.
12.39V
'Y' TO CONTINE
>ENTER BATT TYPE
AGM USE +/-
12.39V
'Y' TO CONTINE
>ENTER SINGLE
CCA 650
12.39V
'Y' TO BEGIN
TESTING BANK
PLEASE WAIT...
Battery Bank of 3 Batteries
Connect large alligator clips as far
apart as possible.
For the most accurate and
repeatable tests always allow the
batteries to stabilize for at least
10 minutes after being charged or
loaded before running a test.
1. Scroll down the main menu to DOWNLOAD. Press (Y Enter) to
select.
Using Auto Meter’s optional
adapter cord AC-10 insert the
plug into the jack on the BCT200J (see page 6) and then plug
the serial adapter into a free
serial port on your computer.
Note: Most computers are congured with at least one serial port (identied
as COM 1), and some have a second serial port, usually identied
as (COM 2). Check your computer manual to locate and identify a serial
port connector. Even if you have a physical COM port you need to make
sure it is working properly before you proceed. Consult your computer
manual. If your computer serial port is congured for 25 pin you will need
to obtain an adapter from your computer store. If your computer does
not have an available serial port and you’re planning on using Windows
HYPER Terminal as illustrated below, you will need to buy and install an
adapter card with a serial port.
VOLT METER
J1708 DATA
SETUP
>DOWNLOAD
CONNECT ANALYZER
TO A P.C.
9600, N, 8, 1.
'N' TO CANCEL.
PC INTERFACE
2. Using Auto Meter’s AC-35 Application Program
By purchasing Auto Meter’s PC Application Program, information
that is stored and collected in the BCT 200J can be easily
downloaded into a PC program format for storage. The AC-35
comes with a PC cable, installation and user instructions.
Page 10
10 51
>CONNECT LARGE
LEADS TO THE
BATTERY.
'Y' TO CONTINUE
3
INDIVIDUAL BATTERY TEST
When the test results appear as
GOOD BATTERIES after running
the PM Check or Battery Bank
Test there is no need to run the
individual battery tests. Press (N
Esc.) to return to the menu
Connect the large red clamp to the
positive and the large black to the
negative battery terminal. If the
clamps are connected improperly
you will be prompted to correct
the problem. The tester will then
revert back to the beginning or
main menu. Be sure to use post
adapters on threaded steel posts
as illustrated on the next page
then press (Y Enter).
If the battery bank test results are
low you will be instructed to test
each battery separately. Press (Y
Enter) to continue.
Select BATTERY TEST from the
main menu.
Note! When testing batteries individually each battery should be
disconnected. Avoid improper results and damage to the posts by using
the included post adapters on threaded post batteries.
Always check for dirt and cracks or
leaks in the battery.
Poor connections may be the
reason for battery bank failure.
Clean posts and connections are
essential when checking each
battery. Make sure batteries not
being tested are disconnected.
>INSPECT BATTERY
FOR DIRT, LEAKS
OR CRACKS
'Y' TO CONTINUE
>INSPECT POSTS
AND CONNECTIONS
'Y' TO CONTINUE
#211 12V BANK
GOOD BATTERIES
12.70V CHRG 100%
11.50V LOADED
#211 12V BANK
TEST SEPARATELY
12.38V CHRG 66%
PM TEST
>BATTERY TEST
BATTERY BANK
VDROP TEST
IMPORTANT
Select the month as 01 to 12
Select the day as 01 to 31
Select the year as 04 to 99
Select the hour as 01 to 12 AM/PM
Select the minute as 01 to 60
If you select Yes you can change
the MONTH, DAY, YEAR, HOUR
and MINUTE.
To require a battery serial number before
each battery test select YES. If YES is
selected then before each battery test
the tester will prompt for a 14 digit alphanumeric serial number. This serial number
will be printed near the bottom of the
printout along with the warranty code.
Can delete all test data or one item
at a time.
>SET MONTH:01
USE +/-.
'Y' TO CONTINUE
>SET DAY:02
USE +/-.
'Y' TO CONTINUE
>SET YEAR:03
USE +/-.
'Y' TO CONTINUE
>SET HOUR:10 AM
USE +/-.
'Y' TO CONTINUE
>SET MINUTE:12
USE +/-.
'Y' TO CONTINUE
>CHANGE THE TIME
01/31/03 10:12AM
'N' OR 'Y'
>REQUIRE BATTERY
SERIAL #? NO
USE +/-.
'Y' TO SELECT.
>DELETE STORED
DATA
USE +/-.
'N' OR 'Y'
SETUP (Cont.)
Page 11
50 11
INDIVIDUAL BATTERY TEST (Cont.)
>ENTER BATTERY
TEMP. 70F.
12.39V
'Y' TO CONTINE
Make sure post
adapters are
screwed firmly
against the lead
pad.
>ENTER BATTERY
DATE CODE: A4
USE +/-. 01/04
'Y' TO CONTINUE
Use
Post Adapters
>ENTER RATED CCA
650
12.39V
'Y' TO BEGIN
TESTING BATTERY
PLEASE WAIT...
#220 12V BATTERY
GOOD NEEDS CHRG.
12.28 CHARGE 54%
EST CCA 840
>ENTER BATT TYPE
AGM USE +/-.
12.39V
'Y' TO CONTINE
The prompt only appears if the user
requests it in the SETUP. The first letter
should be flashing, this is the month.
Using the (+) or (-) adjust the month, then
press enter. the year will then flash use
the (+) or(-) to select the correct year.
'Y' to continue.
Using the (+) or (-) key adjust the
temperature in units of 10 degrees.
This should be the temperature of the
battery.
Using the (+) or (-) key adjust the CCA
of the battery. Press (Y Enter) to begin
test.
Use the (+) or (-) key to select the
battery type, either AGM or regular
lead-acid.
Wait for results.
There are five test results which are
explained in detail on Pg. 12
Make sure they are correct when done.
SETUP
From the main menu select
SETUP.
Select the temperature in
Fahrenheit or Centigrade.
If answered YES the above screen
will appear at the beginning of the
rst test for a vehicle. Each digit,
with a total of 6, requires increment
or decrement to the desired
number. The requested digit to
change is ashing. By pressing (Y
Enter) the next digit is selected. On
the last enter the displayed number
will be accepted and remain in
memory.
You can require the entry of a vehicle
identication number for each test.
Use the (+) or (-) key to change the
displayed request.
To require technician numbers
change YES or NO using the (+) or (-)
key. Press (Y Enter) to select.
To require visual checks change
YES or No using the (+) or (-) key.
Press (Y Enter) to select.
Note: The ID number will not be
requested again as long as the unit
is not turned off.
To require battery date codes
change YES or No using the (+) or
(-) key. Press (Y Enter to select).
REVIEW/PRINT
VOLT METER
J1708 DATA
>SETUP
>SET TEMPERATURE
SCALE: F.
USE +/-.
'Y' TO SELECT
>REQUIRE VEHICLE
ID NUMBERS? YES
USE +/-.
'Y' TO SELECT
>ENTER VEHICLE
ID# 0000
USE +/-.
'Y' TO CONTINUE
>REQUIRE TECH.
NUMBERS? NO
USE +/-.
'Y' TO SELECT
>REQUIRE VISUAL
CHECKS? NO
USE +/-.
'Y' TO CONTINUE
>REQUIRE BATTERY
DATE CODES? NO
USE +/-.
'Y' TO SELECT
Page 12
12 49
Battery tested good, however it needs to be charged
before going into operation, normal vehicle operation
might not charge this battery(s). All batteries need
to leave the repair facility at or near 100% state of
charge for good electrical performance.
GOOD BATTERY
The battery has passed the load and capacity tests
and is at a high enough state of charge to continue
all electrical test or operate.
MARGINAL BATTERY
The battery has lost capacity and should be replaced
if in a critical or harsh situation.
BAD BATTERY
The battery was at a high enough state of charge to
test and failed. Replace battery.
CHARGE AND TEST
The battery is at a low state of charge and can not
be accurately tested unless it has been charged,
Depending on the charger model, several hours may
be needed to fully recharge and be ready to test.
GOOD, NEEDS CHARGING
FIVE TEST RESULTS
J1708 DATA
Select J1708 for the main menu
and press (Y Enter).
Press (Y Enter) to switch between screens.
If ERROR appears the
connections has not been
established.
VOLT METER
Select VOLT METER from the
main menu and press (Y Enter).
This gives the user a chance to
check the voltage from the large
clamps and the external leads.
Press (Y Enter) to switch between screens showing voltage drop or ripple
This gives the user a chance to check the J1708 connections and obtain
pertinent information such as the ambient temperature for later use in
testing the battery. Keep in mind that the ambient temperature may not
be the actual temperature of the battery unless the vehicle battery has
been in the place sufcient time for the battery to reach the surrounding
ambient temperature. A low oil temperature would add a greater demand
on the starter. This information is used by the BCT-200J to calculate the
condition of the starter.
STARTER TEST
REVIEW/PRINT
VOLT METER
>J1708 DATA
ERROR: J1708
NOT READING
VIN: 12345689A
BATTERY 14.10V.
OIL TEMP 68F.
AMB. TEMP. 75F.
ALTERNATOR
STARTER TEST
REVIEW PRINT
>VOLT METER
-VOLT METERVOLTS: 12.28V.
EXT VOLTS: 3.77V
0.00 POS 0.00NEG
-VOLT METERVOLTS: 12.28V.
EXT VOLTS: 3.77V
RIPPLE: 0.00MV
VIN: 12345689A
BATTERY 14.10V.
OIL TEMP 68F.
AMB. TEMP. 75F.
Page 13
48 13
4
CHARGING CABLE VDROP™ TEST
Connect the small leads to
the battery bank - the red on
the positive main and the
black on the negative main
and not to an individual
battery. The added small
external leads will check the
cables before the alternator
is tested. This is the
individual VDrop Test
This same test and hookup can be
run individually by selecting VDrop
Menu
…and then Charging Cables.
ALTERNATOR
HOOKUP
Red to Positive
Black to Ground
BATTERY
HOOKUP
Black Clamp at Negative Main
Red Clamp at Positive Main
>CHARGING CABLES
STR MAIN CABLES
MAG. CIRCUIT
LIFEGATE VDORP
PM TEST
BATTERY TEST
BATTERY BANK
>VDROP MENU
>CONNECT SMALL
LEADS TO THE
BATTERY
'Y' TO BEGIN
Connect the large leads to
the alternator pos. on output
terminal and neg. on case.
PRINTING TEST RESULTS
Point the BCT-200J in the direction of the optional PR-15 printer with the printer’s
IR receiver pointed in the direction of the BCT-200J. Press (Print). You should
be within 15 ft. of the printer. Wait for the screen to clear before moving the BCT200J. It takes a moment to send all the test data. The BCT-200J also operates
the AC-14 printer installed in Auto Meter’s XTC-160 tester/charger or BVA-2100
heavy duty tester/analyzer.
For battery, starter, and alternator tests
a unique warranty code is generated
and printed at the bottom of the
printout. This code is used for data and
warranty verication.
Example warranty code:
WARRANTY CODE
2BC0813280B012H12
Make sure the Infrared Printer is
properly set up.
After a test is made with the BCT-
200J make sure the results are
displayed on the LCD.
Point the BCT-200J in the direction
of the Infrared Printer (within 15 ft.)
Press the <Print> key and the test
results will be printed.
Depending upon the test made the
printer will sometimes yield more
information than the LCD.
Wait until the printer stops printing
before you press the BCT-200J
print key again.
Multiple Test Printing:
Pressing the print button
repeatedly (up to six times) will
automatically print the test in
review and the previous tests.
Page 14
14 47
The Charging System Test
performs this individual VDrop
Test before allowing you to test
the alternator’s output.
If all connections are correct press
(Y Enter) to begin VDrop Test. Wait
for a load to be applied.
LOADING
PLEASE WAIT...
The results will vary depending upon the conditions of the cables. Both the
positive and negative circuit results will be indicated. If the test does not pass,
correct the connection or replace the cable and run the test again. The BCT-200J
will automatically resume the test after it is disconnected. Just answer ‘YES’ when
prompted.
CHARGING CABLE VDROP™ (Cont.)
#7 CHRG CABLES
PASSED @ 130A
GOOD TO 192A
0.15POS 0.19NEG
#8 CHRG CABLES
OUT OF SPEC @
135A GOOD TO 123A
0.16POS 0.46NEG.
Determining if the charging circuit is a “single” or “dual” system
Single has one cable
from the alternator
output terminal.
Dual system has two
cables attached to the
output terminal. Every
load that the tractor
and trailer utilize must
be subtracted from the
amount of current that
can go to the batteries.
To vehicle loads
REVIEW TESTS
#30 12V BATTERY
GOOD BATTERY
12.55V CHRG 85%
EST. CCA 810
From the main menu select REVIEW/PRINT
The last test will be displayed.
Press (+Up) or (-Down) key to
select the desired test. Press
OPTIONAL INFRARED PRINTER
The optional PR-15 printer receives an infrared beam from the BCT-200J
up to 40 ft. No connection cords are needed. For more instructions on
how to operate the printer consult the printer manual.
Printer Type --------------------------Thermal
Print Speed ------24-char. line per second
Paper------2.25 in x 80 ft. roll (included)*
Power ----------------------------- AC Adapter
Note: Thermal Paper can be purchased at any ofce supply.
(N Esc.) to select MAIN MENU.
VDROP MENU
ALTERNATOR
STARTER TEST
>REVIEW/PRINT
Page 15
46 15
VDROP ERROR MESSAGES
ERROR:
LARGE LEADS
NOT CONNECTED
'Y' TO CONTINUE
ERROR:
BAD CONNECTION
ON LARGE LEADS
'Y' TO CONTINUE
ERROR:
SMALL LEADS
REVERSED
'Y' TO CONTINUE
ERROR:
SMALL LEADS
NOT CONNECTED
'Y' TO CONTINUE
ERROR:
CHECK LARGE
RED LEAD
'Y' TO CONTINUE
ERROR:
CHECK LARGE
BLACK LEAD
'Y' TO CONTINUE
One of the following may appear during any drop test sequence. Correct
the situation before continuing.
CHARGING CABLE VDROP™ (Cont.)
One or both of the large leads are not
connected.
Tester detected that one of the
large leads does not have a good
connection.
Tester detected that the large black
lead is not connected properly
Tester detected that the large red
lead is not connected properly
Note: On the large leads, both
sides of the jaws must make a
good connection
One or both of the small external
leads is not connected
The tester detected that the small
leads are hooked up backwards
the tester should also beep when
it occurs
B ATT E R Y
Low
Current
Jaw
High
Current
Jaw
MAINTENENCE
IMPORTANT: Both jaws of each
clamp must rmly engage all
terminals. The copper jaw contains
the smaller gauge wire that reads
the voltage and the silver jaw
contains the larger conducting
wire that draws the load in each
test. Jaw insulation is necessary
for accurate readings. Damaged
clamps or loose wires will affect the
readings. Keep clamps clean and
in good repair. DO NOT ATTEMPT
TO REPLACE CLAMPS WITH
ANYTHING OTHER THAN AUTO
METER CLAMPS.
CHECK OFTEN FOR LOOSE JAWS
OR DAMAGED INTERNAL PLASTIC
SHOULDER INSULATORS
BATTERY CLAMP REPLACEMENT
Over time the battery clamps will need to be replaced if the following are
indicated:
nCCA values seem to be way off.
nIf there is continuity between the silver and copper jaw.
nIf there is excessive damage or corrosion to the cables or clamps.
PROCEDURE
nDisconnect the back cover.
nRemove the battery to prevent shorting.
nDisconnect the two small wires from the PC board.
nRemove the large cables from the copper busses.
nCarefully pull each wire through the grommets.
nReverse the procedure in replacing new clamps.
n Caution: Make sure the red clamp wires are attached to the
positive buss and the black clamp is attached to the negative
buss. Putting a little mineral spirits on the new cable ends will
increase ease of insertion through the grommets.
BATTERY REPLACEMENT
When the LCD indicates a low internal battery. Remove the back cover
and replace the battery with a 9 volt Alkaline battery.
CLAMP INSPECTION
Page 16
16 45
5
STANDARD ALTERNATOR OUTPUT TEST
After the battery or batteries have been tested and were good (or have
been replaced) and after the charging cables have been tested and
were good (or were repaired or replaced) you may proceed to test the
alternator.
This test can also be selected
from the main menu by selecting
Alternator Test then press (Y
Enter).
If the unit is setup to require
visual checks you will be asked to
inspect belt condition…
Inspect cables and connections before
alternator rating is entered.
…and tension.
BATTERY TEST
BATTERY BANK
VDROP TEST
>ALTERNATOR
>INSPECT BELT
CONDITION.
'Y' TO CONTINUE
>INSPECT BELT
TENSION.
'Y' TO CONTINUE
>INSPECT CABLES
AND CONNECTIONS
'Y' TO CONTINUE
CONNECT LARGE LEADS
TO THE ALTERNATOR
'Y' TO CONTINUE
Red to output terminal and Black
to ground / case output adapters
recommended.
CONNECT LARGE LEADS
TO THE ALTERNATOR
'Y' TO CONTINUE
Check the alternator tag or
housing and use the +/- key to
select the rated output
See picture below
ALTERNATOR BENCH TESTING (Cont.)
#48 12V BENCH BAD
ALTERNATOR HIGH
RIPPLE
REG. 14.39V
#151 12V ALTER.
HIGH REG. 15.02V
BAD DIODE
PARTIAL OUTPUT
#148 12V ALTER.
LOW REG. 12.74V
LOW OUTPUT
#150 12V ALTER.
HIGH REG. 15.02V
GOOD DIODE
LOW OUTPUT
This is a defective alternator. Not only
does it have defective components the regulation set point is high.
This is a defective alternator. The
output and regulation are low. Defective
batteries can cause this condition
Defective alternator. It can not handle
the load and it is regulating high.
#147 12V ALTER.
GOOD REG. 14.15V
GOOD DIODE
GOOD OUTPUT
#149 12V ALTER.
LOW REG. 12.74V
BAD DIODE
LOW OUTPUT
This result indicates the alternator
is in good working order
This is a defective alternator. It
has a defective component and is
producing high ripple
Page 17
44 17
DOES ALTERNATOR
HAVE A
REMOTE SENSE?
'N' OR 'Y'
See photo of non remote sense
alternator alternator below “N” for
Non-remote sense alternator
STANDARD ALTERNATOR OUTPUT TEST (Cont.)
DOES VEHICLE HAVE
J-1708 DATA PORT?
'N' OR 'Y'
If vehicle is equipped with a J-1708
port and you have the optional
cable. Select “Y”. If vehicle is not
equipped with J-1708 data port or
you don’t have an optional J-1708
cable select “N”
If NO skip the next two steps.
>ATTACH J-1708
DATA CABLE
'N' TO CANCEL
Attach the cable from the tester to
the data port on the vehicle.
NOTE: if the tester does not detect it
is hooked to the data port it will not
go beyond this screen.
TURN IGNITION
SWITCH ON
Once it detects it is hooked up
properly it will prompt you to turn
the ignition key to the run position.
Non Remote Sense (empty port)
Non Remote Sense Alternator
ALTERNATOR BENCH TESTING (Cont.)
TURN MOTOR SWITCH
OFF.
'Y' TO CONTINUE.
TURN BATTERY
SWITCH OFF.
'N' TO CANCEL
TURN BENCH POWER
SWITCH OFF.
'Y' TO CONTINUE
#45 12V BENCH
GOOD ALTERNATOR
GOOD REG. 14.47V
After the BCT-200J has tested the
alternator it will prompt for the motor,
the battery switch and the bench power
to be turned off.
After the bench is turned off the
BCT-200J will report the condition
of the alternator.
ALLOWING VOLTAGE
TO STABILIZE
14.47V.
PLEASE WAIT . . .
VERIFY THAT BELT
IS AROUND LARGE
PULLEY.
'Y' TO CONTINUE
If this prompt shows up during the
alternator test then verify that the belt
goes around the large pulley on the
bench motor and that the correct pulley
is used on the alternator. If the correct
pulleys are being used then press Y/
Enter to continue otherwise press
N/Cancel and use the correct pulleys.
TESTING
ALTERNATOR
14.47V.
PLEASE WAIT . . .
Page 18
18 43
You MUST allow voltage to stabilize
for an accurate test. If, voltage is low,
tester will start a one minute clock to
ensure proper test.
Rev the engine to governed speed
for 10 seconds. If no results appear
press (Y Enter).
>START ENGINE.
SET IDLE AT
ABOUT 1000 RPM
'N' TO CANCEL
>ALLOW VOLTAGE
TO STABILIZE.
14.20V
'Y' TO BEGIN
>REV ENGINE TO
GOV. FOR 10 S.
'N' TO CANCEL
Make sure all is clear. Start engine
and run at fast idle - 1,000 RPM.
STANDARD ALTERNATOR TEST RESULTS
Connect the single alligator clip
from the AC-26 J1708 cable to the R
terminal on the alternator.
>CONNECT R CLIP
TO THE R TERM
ON ALTERNATOR
'Y' TO CONTINUE
Output terminal adapter utilized
ALTERNATOR BENCH TESTING (Cont.)
BENCH BATTERY OR
CABLES ARE
DEFECTIVE.
'Y' TO CONTINUE
BENCH BATTERY IS
LOW, CHARGE OR
REPLACE.
'Y' TO CONTINUE
ENTER RATED
ALTERNATOR
OUTPUT: 100A
“Y” TO CONTINUE
TURN MOTOR SWITCH
TO FWD.
'Y' TO CONTINUE
If the bench battery is too weak or if the
cables or leads of the bench have too
high of a voltage drop then the battery
and/or cables will need to be serviced
before continuing with the alternator
test.
If the bench battery is discharged then
charge or replace the battery before
continuing with the alternator test.
Set the rated output of the alternator.
The rated output is sometimes marked
on the alternator, if it is not marked on
the alternator check the manufacturer’s
documentation.
Turn the bench motor on to spin the
alternator. If the nut to hold the pulley
on the alternator has right-hand threads
then by turning the motor forward the
chances of the pulley coming loose
during the test will be reduced.
FLIP BATTERY
SWITCH TO
ALTERNATOR.
'N' TO CANCEL.
CHECKING BENCH
BATTERY
PLEASE WAIT . . .
TURN OFF OR
DISCONNECT
CHARGER.
'Y' TO CONTINUE
The BCT 200J will check the bench
battery to ensure that it is charged and
sufciently good to continue with the
alternator test.
If the battery has a charger connected
to it the charger must be turned off or
disconnected to continue with the
alternator test.
Page 19
42 19
#151 12V ALTER.
HIGH REG. 15.02V
BAD DIODE
PARTIAL OUTPUT
#148 12V ALTER.
LOW REG. 12.74V
LOW OUTPUT
#150 12V ALTER.
HIGH REG. 15.02V
GOOD DIODE
LOW OUTPUT
This is a defective alternator. Not only
does it have defective components the
regulation set point is high.
This is a defective alternator. The
output and regulation are low.
Defective batteries can cause this
condition.
Defective alternator. It can not handle
the load and it is regulating high.
STANDARD ALTERNATOR TEST RESULTS
Wait for test to complete its
testing cycle.
TESTING ALT.
PLEASE WAIT...
#147 12V ALTER.
GOOD REG. 14.15V
GOOD DIODE
GOOD OUTPUT
#149 12V ALTER.
LOW REG. 12.74V
BAD DIODE
LOW OUTPUT
This result indicates the alternator
is in good working order.
This is a defective alternator. It
has a defective component and is
producing high ripple.
ALTERNATOR BENCH TESTING (Cont.)
ALTERNATOR AND
TESTER SHOULD BE
HOOKED UP.
'Y' TO CONTINUE
DOES
ALTERNATOR HAVE A
REMOTE SENSE.
'N' OR 'Y'
CONNECT REMOTE
SENSE POST TO
OUTPUT POST.
'Y' TO CONTINUE
TURN BENCH POWER
SWITCH ON.
'Y' TO CONTINUE
If the prompts are skipped over by
pressing the +/Up key then a prompt is
displayed indicating that the alternator
and the tester should at this point be
connected to the bench. After verifying
that the setup is correct press the Y/
Enter key to continue.
Some alternators have a remote sense
post to enable the alternator to regulate
the voltage at the battery instead of
at the alternator. If the alternator has
a remote sense post then the remote
sense post must be attached to the
output post of the alternator to test
the alternator on the bench. Otherwise
the alternator’s regulator will not be
connected and the alternator’s output
voltage will be high.
Note: Output
terminal and
ground post
adapters utilized.
Model AC-27
Page 20
20 41
REMOTE SENSE ALTERNATOR OUTPUT TEST
After the battery or batteries have been tested and were good (or have
been replaced) and after the charging cables have been tested and
were good (or were repaired or replaced) you may proceed to test the
alternator.
This test can also be selected
from the main menu by selecting
Alternator Test then press (Y
Enter).
If the unit is setup to require
visual checks you will be asked to
inspect belt condition…
Inspect cables and connections before
alternator rating is entered.
…and tension.
BATTERY TEST
BATTERY BANK
VDROP TEST
>ALTERNATOR
>INSPECT BELT
CONDITION.
'Y' TO CONTINUE
>INSPECT BELT
TENSION.
'Y' TO CONTINUE
>INSPECT CABLES
AND CONNECTIONS
'Y' TO CONTINUE
CONNECT LARGE LEADS
TO THE ALTERNATOR
'Y' TO CONTINUE
Red to output terminal and Black
to ground / case output adapters
recommended.
CONNECT LARGE LEADS
TO THE ALTERNATOR
'Y' TO CONTINUE
Check the alternator tag or
housing and use the +/- key to
select the rated output.
See picture below
ALTERNATOR BENCH TESTING (Cont.)
MAKE SURE THAT
THE BELT IS
STRAIGHT.
'Y' TO SCROLL
TIGHTEN THE BELT
'Y' TO SCROLL
ATTACH BLACK
BENCH LEAD TO
GROUND ADAPTER.
'Y' TO SCROLL
Securely attach the black bench lead to
the alternator’s casing or to the ground
adapter post (if the alternator has a
ground post instead of a case ground).
ATTACH BLACK
TESTER LEAD TO
ALTERNATOR.
'Y' TO SCROLL
ATTACH POSITIVE
ADAPTER TO
ALTERNATOR
'Y' TO SCROLL
ATTACH RED BENCH
LEAD TO POSITIVE
ADAPTER.
'Y' TO SCROLL
ATTACH RED TESTER
LEAD TO POSITIVE
ADAPTER.
'Y' TO SCROLL
Also attach the black lead from the BCT
200J to the alternator’s casing or to
the ground post (if the alternator has a
ground post instead of a case ground).
The AC-27 adapter makes it possible to
attach the red lead from the bench and
the red lead from the BCT 200J to the
alternator output post. Be sure to thread
the adapter completely onto the output
post of the alternator and tighten.
Align the belt so that it is straight and
will not come off.
Make sure the belt is tight so that it will
be able to properly turn the alternator
under load.
Page 21
40 21
DOES ALTERNATOR
HAVE A REMOTE SENSE?
'N' OR 'Y'
See photo of remote sense
alternator.
Select 'Y' for remote sense
REMOTE SENSE ALTERNATOR TEST (Cont.)
DOES VEHICLE HAVE
J-1708 DATA PORT?
'N' OR 'Y'
If vehicle is equipped with a J-1708
port and you have the optional
cable. Select 'Y'. If vehicle is not
equipped with J-1708 data port or
you don’t have an optional J-1708
cable select 'N' If NO skip the next
two steps.
CONNECT SMALL
CLIPS TO THE
REMOTE TERM/GND
'Y' TO CONTINUE
Use the small ext leads and connect
the red to the remote sense port and
the black to the Alt ground.
ERROR:
FAULTY REMOTE
SENSE WIRE
'Y' TO CONTINUE
If the tester does not see battery
voltage this error will appear.
Remote Sense
ALTERNATOR
STARTER TEST
REVIEW/PRINT
>BENCH TEST
The Bench Test is used to test the alternator that has been removed
from the vehicle and setup on an alternator test bench.
From the main menu select Bench
Test and press Y/Enter.
PRESS 'Y' TO
SCROLL THROUGH
BENCH SETUP OR
'+' TO SKIP
Press 'Y' to scroll through the
prompts for connecting the alternator
to the bench or press the +/Up key to
skip over the prompts to attach the
alternator and the test leads.
REMOVE THE
ALTERNATOR PULLEY
'Y' TO SCROLL
If the pulley that is on the alternator is a
different size or different style than the
pulley that comes with the bench, then
remove the pulley from the alternator
and attach the pulley that goes with the
bench to the alternator.
ATTACH BENCH
PULLEY TO THE
ALTERNATOR.
'Y' TO SCROLL
ATTACH THE
ALTERNATOR TO THE
BENCH.
'Y' TO SCROLL
Securely mount the alternator to the
bench following the instructions for the
bench.
ROUTE BELT OVER
LARGE BENCH
PULLEY.
'Y' TO SCROLL
It is important that the belt go around
the large pulley that is attached to the
bench motor. If the small pulley on the
bench motor is used or if a larger pulley
is used on the alternator then the bench
will not spin the alternator at full speed.
Utilize the proper size pulley that works
with the tester.
ALTERNATOR BENCH TESTING
10
Page 22
22 39
Connect the single alligator clip
from the AC-26 J1708 cable to the R
terminal on the alternator.
>CONNECT R CLIP
TO THE R TERM
ON ALTERNATOR
'Y' TO CONTINUE
TURN IGNITION
SWITCH ON
Once it detects it is hooked up
properly it will prompt you to turn
the ignition key to the run position.
REMOTE SENSE ALTERNATOR TEST (Cont.)
You MUST allow voltage to stabilize
for an accurate test. If, voltage is low,
tester will start a one minute clock to
ensure proper test.
>START ENGINE.
SET IDLE AT
ABOUT 1000 RPM
'N' TO CANCEL
>ALLOW VOLTAGE
TO STABILIZE.
14.20V
'Y' TO BEGIN
Make sure all is clear. Start engine
and run at fast idle - 1,000 RPM
>ATTACH J-1708
DATA CABLE
'N' TO CANCEL
Attach the cable from the tester to
the data port on the vehicle.
NOTE: if the tester does not detect it
is hooked to the data port it will not
go beyond this screen.
Output terminal adapter utilized
Charging
Cables
TEST SYSTEM PASS/FAIL
12 Volt Maximum drop at rated alternator output is 0.5 Volts
Maximum drop at rated alternator output is 1.0 Volts
Maximum drop at 500 Amps is 0.5 Volts
Maximum drop at 250 Amps is 1.0 Volts
Maximum drop at 80 Amps is 1.0 Volts
Maximum drop at 40 Amps is 2.0 Volts
Reports the drops at the entered current
Reports the drops at the entered current
24 Volt
12 Volt
24 Volt
12 Volt
24 Volt
12 Volt
24 Volt
Main
Starting
Cables
Magnetic
Circuit
Straight
Drive
Maximum drop at 300 Amps is 1.0 Volts
Maximum drop at 225 Amps is 2.0 Volts
12 Volt
24 Volt
Magnetic
Circuit
Gear
Reduction
Generic
Voltage
Drop Test
DEFINITIONS - SYSTEM SPECIFICATIONS
VOLTAGE DROP TESTS
The specications for those tests are listed below.
The minimum system voltage to run a test is 12.25 Volts for a 12
Volt system and 24.5 Volts for a 24 Volt system.
During each battery test the BCT-200J uses various results that are
displayed after each test. The denition of those results are as follows:
• % Charge = an approximate amount of charge the battery is
currently holding. This is based upon the batteries voltage.
• Est. CCA = is the approximate CCA of the fully charged battery.
• GOOD BATTERY = a battery that is good and is charged.
• GOOD NEEDS CHARGE = a battery that is good but is low on
charge.
• MARGINAL BATTERY = a battery that has passed the load
test but the estimated CCA is getting low or the battery is
approaching its end of life.
• CHARGE and RETEST = a battery with insufcient charge to
provide accurate test results.
• BAD BATTERY = a battery that is bad and should be replaced.
A bad battery is a battery that failed the load test or had an
estimated CCA below about 70% of the rated value.
BATTERY TEST
Page 23
38 23
TESTING ALT.
PLEASE WAIT...
#147 12V ALTER.
GOOD REG. 14.15V
GOOD DIODE
GOOD OUTPUT
#149 12V ALTER.
LOW REG. 12.74V
BAD DIODE
LOW OUTPUT
This result indicates the alternator
is in good working order.
This is a defective alternator. It
has a defective component and is
producing high ripple.
REMOTE SENSE ALTERNATOR TEST (Cont.)
#151 12V ALTER.
HIGH REG. 15.02V
BAD DIODE
PARTIAL OUTPUT
#148 12V ALTER.
LOW REG. 12.74V
LOW OUTPUT
#150 12V ALTER.
HIGH REG. 15.02V
GOOD DIODE
LOW OUTPUT
This is a defective alternator. Not only
does it have defective components the regulation set point is high.
This is a defective alternator. The
output and regulation are low. Defective
batteries can cause this condition.
Defective alternator. It can not handle
the loa and it is regulating high.
Rev the engine to governed speed
for 10 seconds. If no results appear
press (Y Enter).
>REV ENGINE TO
GOV. FOR 10 S.
'N' TO CANCEL
Wait for test to complete its testing
cycle.
LIFTGATE VDROP™ TESTS (Cont.)
Then connect small leads to the
battery or along the circuit being
tested as illustrated in the setup
and press (Y Enter).
If all connections are correct, wait
for a load to be applied.
The results will vary depending
upon and the conditions of the
cables. Both the positive and
negative circuit results will be
indicated from the single test.
If the overall voltage drop is not within the desired specications the
small leads can be moved closer along the line being tested and the test
run again (see dotted lead on previous page). If the results are desirable,
it is the section not included in the last test. If the results are not
desirable the problem is most likely in the section being tested. Repair
and test the entire section again.
>CONNECT SMALL
LEADS TO THE
SYSTEM.
'Y' TO CONTINUE
LOADING
PLEASE WAIT...
#28 GEN. VDROP
VOLTAGE DROPS
AT 150 AMPS
0.33 POS 0.32 NEG
Generic
Load
BCT-200J
Engineered &
Manufactured by
with Data Bus Communication
2511-957
Generic
System
Setup
Page 24
24 37
6
STARTING SYSTEM MAIN CABLE VDROP™
TEST
The circuit from the battery to the starter junction is being tested.
Note: If a split battery bank is used go to the Generic Starter Drop Test
and perform a split battery procedure. See section 11. By disconnecting
each bank and testing the other using the Generic Voltage Drop Test and
entering one half the starter draw you can test the starter main cables
individually. First of all determine if the system you are going to test is a
“split” or “single” system.
This test can be selected from the
main menu by selecting VDROP
MENU then by pressing (Y Enter).
…select >STR. MAIN CABLES
and press (Y Enter).
CHARGING CABLES
>STR MAIN CABLES
MAG. CIRCUIT
LIFTGATE VDROP
BATTERY TEST
BATTERY BANK
>VDROP MENU
ALTERNATOR
B CT -20 0J
Eng in e e re d &
Man u fa c tu re d b y
with D a ta B us C o m mu n ica tio n
2511-95 7
A
How to Determine if Single of Dual Cable System Chart
LIFTGATE VDROP™ TESTS
After selecting >VOLTAGE
DROP from the main menu…
…select >LIFTGATE V DROP and
press (Y Enter).
Select >GENERIC VDROP
and press (Y Enter) to run the
generic voltage drop test.
9
CHARGING CABLES
STR MAIN CABLES
MAG. CIRCUIT
>LIFTGATE VDROP
>TRAILER CHARGE
TRAILER MOTOR
TRUCK CHARGE
GENERIC VDROP
TRAILER CHARGE
TRAILER MOTOR
TRUCK CHARGE
>GENERIC VDROP
BATTERY TEST
>VDROP MENU
ALTERNATOR
STARTER TEST
The various liftgate circuit voltage drop tests and the generic voltage drop
test can be used to test the liftgate charging and motor circuits as well
as any other circuit that includes a battery and cables and is designed to
operate a load of 20 amps or more.
Select TRAILER CHARGE, TRAILER MOTOR or TRUCK CHARGE to perform
a voltage drop test on the trailer charge circuit, trailer liftgate motor circuit or the
truck’s liftgate power circuit respectively.
The liftgate charging circuit includes the positive cables from the front of the
trailer to the liftgate batteries and the negative cables and/or frame from the front
of the trailer to the liftgate batteries.
The liftgate motor circuit includes the positive cables and the solenoid from the
liftgate batteries to the liftgate motor and the negative cables and/or frame from the
liftgate batteries to the liftgate motor.
The liftgate truck circuit includes the positive cables and the negative cables
and/or frame from the trucks batteries to the font of the trailer (end of the
“stinger” cord).
Adapters are available from Auto Meter to facilitate connecting the BCT-200J to
single pole and dual pole connectors on both trucks and trailers. See the manual
supplement that is included with those adapters for more detailed information on
testing and trouble shooting the liftgate charging circuits and liftgate motor circuits.
Using the (+/-) key adjust Amp
rating to that of the generic load
device.
Connect large leads to the generic
load.
>ENTER RATED
CURRENT: 150A
'Y' TO CONTINUE
>CONNECT LARGE
LEADS TO THE
SYSTEM.
'Y' TO CONTINUE
Page 25
36 25
Connect large leads to the
Starter
Then connect small leads to the
battery bank – the red on the
positive main and the black on
the negative main and not to an
individual battery. The added
small external leads will check
the main cables. Press (Y Enter).
>CONNECT SMALL
LEADS TO THE
BATTERY
'Y' TO BEGIN
>CONNECT LARGE
LEADS TO THE
STARTER
'Y' TO CONTINUE
Red
Starter
Positive
Black
Starter
Ground
STARTING VDROP™ MAIN CABLE. . . SINGLE
Just as the System Test checks the Magnetic Circuit rst it also checks
the main starting cables.
If all connections are correct, wait
for a load test to be performed.
The results will vary depending upon and the conditions of the cables. Both the
positive and negative circuit results will be indicated from the single test. If the test
does not pass, correct the connection or replace the cable and run the test again.
The BCT-200J will automatically resume the test after it is disconnected. Just answer
‘Yes” when prompted.
Black Clamp at
Negative Main
Red Clamp at
Positive Main
BATTERY
HOOKUP
LOADING
PLEASE WAIT...
A= will always be the battery ground
A to B tests power at key switch
A to C tests po wer out of keyswitch
A to D tests power at the push button
A to E tests power out of the push button
A to F tests ground at the mag switch
A to G tests power at mag switch
NON OCP
Example: Connect small
black lead at A and small
red lead on B
KEY SWITCH VDROP™ TEST (Cont.) (NON OCP)
Note: D & E tests only pertain to
vehicles equipped with push button
start
Page 26
26 35
B C T- 20 0J
En g ine e r e d &
Ma n u fa c tu re d b y
with D a ta B us C om m u n ica tio n
2511 -957
#10 MAIN CABLES
PASSED @ 500A
GOOD TO 545A
0.18 POS 0.13 NEG
#11 MAIN CABLES
OUT OF SPEC @ 500A
GOOD TO 375A
0.21POS 0.36NEG.
STARTING MAIN CABLE VDROP™ (Cont.) SINGLE
STARTING VDROP™ . . . SPLIT SYSTEM
TESTING PART A
BATTERY TEST
BATTERY BANK
>VDROP MENU
ALTERNATOR
CHARGING CABLES
STR MAIN CABLES
MAG. CIRCUIT
>LIFTGATE VDROP
TRAILER CHARGE
TRAILER MOTOR
TRUCK CHARGE
>GENERIC VDROP
TESTING
DISCONNECT
GROUND
KEY SWITCH VDROP™ TEST (Cont.) (OCP)
A= will always be the small black lead
A to B tests power at key switch
A to C tests power out of keyswitch
A to D tests power at the push button
A to E tests power out of the push button
A to F tests ground at the mag switch
A to G tests power at mag switch
A to H tests ground at starter
Note: For testing the OCP wiring the
plug should be removed and a paper
clip inserted in the connector body.
(see picture)
OCP
Example: Connect small
black lead at A and small
red lead on B
Note: D & E tests only pertain to
vehicles equipped with push button
start
Page 27
34 27
ENTER RATED
CURRENT: 250
'Y' TO CONTINUE
SPLIT SYSTEM TESTING (Cont.) PART A
CONNECT LARGE
LEADS TO THE
SYSTEM
'Y' TO CONTINUE
CONNECT SMALL
CLIPS TO THE
SYSTEM
'Y' TO BEGIN
LOADING . . .
#5 GENERIC VDROP
VOLTAGE DROPS
AT 250 AMPS
.21 POS .16 NEG
Scroll to 250 amps.
You are allowed a total of 0.5 VDrop
combined. Add the negative and
positive voltage drop for total voltage
drop. This example is within spec
with a combined drop of only .37V
Red to Starter battery post.
Black to Starter ground post.
Red to battery positive.
Black to battery negative.
The results will vary depending upon and the conditions of the cables. Both the
positive and negative circuit results will be indicated from the single test. If the test
does not pass, correct the connection or replace the cable and run the test again.
The BCT-200J will automatically resume the test after it is disconnected. Just answer
‘Yes” when prompted.
#6 GENERIC VDROP
VOLTAGE DROPS
AT 250 AMPS
.35 POS .29 NEG
This example is out of spec with a
total drop of .64V
KEY SWITCH VDROP™ TEST (Cont.)
Turn the ignition key to start position
and hold. Observe both volt results
Voltage is at magnetic switch coil
leads. External V is voltage at starter.
-VOLTMETERVOLTS 12.15V
EXT. V 12.40V
.15 POS .10 NEG
In this example the system
passed, the total voltage drop is
.25V which is less than the .5V
drop allowed.
End of test.
-VOLTMETERVOLTS 12.15V
EXT. V 12.40V
.15 POS .10 NEG
In this example the system is
out of spec. The 1.35 volt drop
exceeds the allowable .5 volt
drop.
Continue testing each leg of the
circuit.
-VOLTMETERVOLTS 11.08V
EXT. V 12V
.33 POS 1.02 NEG
-VOLTMETERVOLTS 0.00V
EXT. V 12.63V
0.00 POS 0.00 NEG
Should read voltage at ext. V. No
voltage at magnetic switch coil with
ignition key off.
Page 28
28 33
SPLIT SYSTEM TESTING (Cont.) PART B
BATTERY TEST
BATTERY BANK
>VDROP MENU
ALTERNATOR
Now test the other battery pack.
CHARGING CABLES
STR MAIN CABLES
MAG. CIRCUIT
>LIFTGATE VDROP
TRAILER CHARGE
TRAILER MOTOR
TRUCK CHARGE
>GENERIC VDROP
B C T -20 0 J
En g in e e re d &
Ma n u fa c tu re d b y
with D a ta B us C o m m u n ic a tio n
2511 -957
TESTING
DISCONNECT
GROUND
8
KEY SWITCH VDROP™ TEST
Note: This is a real time test and the operator must observe and record
the data when the key switch is energized.
S-terminal wire must be removed
from the solenoid so that the
starter does not engage.
ALTERNATOR
STARTER TEST
REVIEW/PRINT
>VOLT METER
Scroll to Voltmeter
Connect large clips to magnetic
switch coil.
Connect small leads to starter.
NOTE: Connections are the same
for WITH OCP or WITHOUT OCP.
B
S
Page 29
32 29
ENTER RATED
CURRENT: 250
'Y' TO CONTINUE
SPLIT SYSTEM TESTING (Cont.) PART B
CONNECT LARGE
LEADS TO THE
SYSTEM
'Y' TO CONTINUE
CONNECT SMALL
CLIPS TO THE
SYSTEM
'Y' TO BEGIN
LOADING . . .
#5 GENERIC VDROP
VOLTAGE DROPS
AT 250 AMPS
.15 POS .19 NEG
Scroll to 250 amps.
You are allowed a total of 0.5 VDrop
combined. Add the negative and
positive voltage drop for total voltage
drop. This example is within spec
with a combined drop of only .34V
Red to Starter Solenoid battery post.
Black to Starter ground post.
Red to battery positive.
Black to battery negative.
The results will vary depending upon and the conditions of the cables. Both the
positive and negative circuit results will be indicated from the single test. If the test
does not pass, correct the connection or replace the cable and run the test again.
The BCT-200J will automatically resume the test after it is disconnected. Just answer
‘Yes” when prompted.
#6 GENERIC VDROP
VOLTAGE DROPS
AT 250 AMPS
.18 POS .41 NEG
This example is out of spec with a
total drop of .59V
MAGNETIC CIRCUIT TEST (Cont.)
Move the small red lead to
the negative (-) side of the
magnetic switch (3), press
enter and energize again for
3-5 seconds (See Illustration small clamp position 3).
The nal results will appear
indicating the section of the
circuit or switch that is in
need of repair.
#340 MAG/CABLES
LEG1: 2.22V FAIL
MAG.: 0.41V FAIL
LEG2: 0.12V PASS
>MOVE SMALL RED
LEAD TO OTHER
SIDE OF MAG.
'Y'TO CONTINUE
If the test was out of spec Press
'Y' and the BCT-200J will advance
to the next menu. Excessive drop
at rated load is indicated by more
than 1 Volt drop at 80 Amps.
Move the small red lead to the
magnetic switch hot side connection
from the battery (2), press enter
and energize the switch again for
3-5 seconds (See Illustration - small
clamp position 2).
#338 MAG/CIRCUIT
OUT OF SPEC!
DROP @ 80A: 1.54V
'Y' TO CONTINUE
>MOVE THE SMALL
RED LEAD TO THE
MAG. “HOT”
'Y'TO CONTINUE
Page 30
30 31
B
S
1
3
2
7
MAGNETIC CIRCUIT VDROP™ TEST
The Magnetic switch circuit supplies a path for current to the coils of the starter
solenoid with minimum voltage drop. The Magnetic circuit is indicated by the
dotted line on the illustration below. The Magnetic circuit test is designed to
test the voltage drop of this circuit. It has three steps. If it passes the rst test
the whole circuit passes and there is no need to continue. If the rst test fails,
the next two tests are completed to obtain results of each leg and the magnetic
switch itself. The Magnetic switch is energized by the ignition switch in each test.
For safety, disconnect the negative cable from the battery.
This is a continuation of the Starting
System Test, but can also be selected
from the VDrop Menu by selecting
>MAG. CIRCUIT then press Enter.
In the individual test you will be
asked to disconnect the Magnetic
circuit from the “S” terminal on the
starter solenoid as explained on the
previous page. This is necessary to
avoid starting the engine during this
test sequence.
Magnetic Circuit 3-Step Setup
NOTE: ON 12 VOLT SYSTEMS THE SMALL BLACK LEAD CAN BE LEFT
DISCONNECTED OR CAN BE CONNECTED TO ANY GROUND. ON 24 VOLT SYSTEMS
THIS LEAD MUST BE CONNECTED TO THE STARTER GROUND.
CHARGING CABLES
STR MAIN CABLES
>MAG. CIRCUIT
LIFTGATE VDROP
Connect the large red clamp (+)
to the disconnected ring from
the S-terminal magnetic circuit.
Connect the large black clamp
(-) to the starter ground (See
Illustration)
Connect the small red lead (+) to
the 'B' terminal (+) of the starter
solenoid. Attach the small black
lead (-) to the starter ground (See
Illustration - small clamp position 1)
Reconnect the negative terminal
on the battery. Then energize
the Magnetic Switch for 3-5
seconds. Note. This can be done
by a remote starter or by a second
person turning the ignition.
Wait for results.
If voltage drop is within
specications the whole circuit
passes. This test should be done
THREE TIMES when rotating contact
magnetic switches are utilized.
>CONNECT SMALL
LEADS TO THE
STARTER SOL/GND
'Y' TO CONTINUE
>CONNECT LARGE
LEADS TO THE
S-TERMINAL/GND.
'Y' TO CONTINUE
>ENERGIZE THE
MAG SWITCH FOR
3-5 SECONDS.
'N' TO CANCEL
LOADING
PLEASE WAIT...
#337 MAG/CIRCUIT
PASSED!
DROP WITHIN SPEC
DROP @80A. 0.65V
MAGNETIC CIRCUIT TEST (Cont.)
Use the + / - key to select the type
of starter you are testing.
SELECT STARTER TYPE.
STRAIGHT DRIVE/GEAR
REDUCTION
'Y' TO CONTINUE
DISCONNECT THE
S-TERMINAL FROM
STARTER SOL.
'Y' TO CONTINUE
This is the small wire on the starter
solenoid that activates the starter
Loading...