Eaton Gen III Automated
Transmissions
TRTS0930 EN-US
August 2013
UltraShift®
AutoShift®
UltraShift® PLUS Linehaul Active Shifting (LAS)
UltraShift® PLUS Linehaul Small Step Efficiency (LSE)
UltraShift® PLUS Multipurpose Extreme Performance (MXP)
UltraShift® PLUS Multipurpose High Performance (MHP)
UltraShift® PLUS Vocational Active Shifting (VAS)
UltraShift® PLUS Vocational Construction Series (VCS)
UltraShift® PLUS Vocational High Performance (VHP)
UltraShift® PLUS Vocational Multipurpose Series (VMS)
UltraShift® PLUS Vocational Extreme Performance (VXP)
UltraShift® PLUS Passenger Vehicle (PV)
Diagnostic Procedures | General InformationTRTS0930
Diagnostic Procedures
Purpose: Observe the transmission gear display.
A
1. Key on.
2. Observe gear display.
Note: An “88” may show up in the dash at key on.
This indicates the Transmission Electronic
Control Unit (TECU) has completed
power-up. If the transmission and gear display power-up at the same time, you may
not see an “88”.
• If blank gear display, go to Step
• If “-” (1 dash) on gear display, go to Step D.
• If “--” (2 dashes) or “**” (2 stars) on gear dis-play, go to Step
• “#” (gear number) on gear display
- Verify shift lever or push button is in neutral.
- Turn key off and wait 2 minutes.
- Hold clutch half way to the floor. (If
equipped)
- Turn key on.
- If problem continues, call 1-800-826-HELP
(4357)
D.
B.
Purpose: Confirm that the engine will crank and
B
start.
1. Attempt to start engine
• No engine crank, lever is in neutral and gear
display is “N” (neutral). See “Start Enable
Relay Contact Test” on page 314.
• No engine crank, lever is in neutral and gear
display is blank. See “Power-Up Sequence
Test” on page 32.. If no problems found, refer
to OEM for gear display problem.
• No engine crank and lever is NOT in neutral.
- Verify shift lever or push button is in neutral.
- Turn key off and wait 2 minutes.
- Hold clutch half way to the floor. (If
equipped)
- Turn key on.
- If problem continues, call 1-800-826-HELP
(4357)
• Engine cranks and gear display is blank. Refer
to OEM for gear display problem.
• Engine cranks and gear display is “N” (neutral), go to Step
TRTS0930General Information | Diagnostic Procedures
Purpose: Confirm the transmission will engage a
C
gear from neutral.
1. Engage a gear.
Note: AutoShift will not engage a gear from neutral
test. UltraShift will not engage a gear from
neutral test. UltraShift PLUS Product will not
engage a gear from neutral test, or UltraShift
AW3 Clutch Engagement test depending on
transmission type.
• Unable to engage gear (ie. flashing gear dis-
play with down arrows, or solid “N”).
• Solid “#” (gear number) but no drive. See
“Front Box Control Test” on page 326. Gear
engaged and drives, go to Step
E.
Purpose: Check for active or Inactive fault codes.
D
1. Check for active fault codes.
Note: If no problem found, refer to OEM for display
problem.
• If codes are present, See “Fault Code Isolation
Procedure Index” on page 13.
• If no codes and gear display is “-” (1 dash)
- Verify shift lever or push button is in neutral.
- Turn key off. Wait 2 minutes.
- Hold clutch half way to the floor. (If
equipped)
- Turn on key.
- If problem continues, call 1-800-826-HELP
(4357)
See “Front Box Control Test” on page 326.
• If no codes and gear display is“--” (2 dashes)
or “**” (2 stars), See “Power-Up Sequence
Test” on page 32.
Purpose: Drive vehicle and attempt to duplicate a
E
fault code.
1. Record and clear Inactive fault codes.
2. Drive vehicle and attempt to reset code.
• If no codes are present, test complete.
• If Inactive transmission component or Fault
Codes, record codes an call 1-800-826-HELP
(4357).
• If active transmission component or Fault
Codes, See “Fault Code Isolation Procedure
Index” on page 13.
Fault Code Retrieval/Clearing | General InformationTRTS0930
Fault Code Retrieval/Clearing
Retrieving Fault Codes Manually
Retrieve fault codes by enabling the system’s self-diagnostic mode.
Note: You can also use a PC- based service tool, such as
ServiceRanger to retrieve fault codes.
1. Place the shift lever in neutral.
2. Set the parking brake.
3. Turn key on with engine off.
Note: If the engine is already running, you may still
retrieve codes; however, do not engage the
starter if the engine stalls.
4. To Retrieve Active Codes: Key on. Turn key off and
on 2 times within five seconds ending with the key
on. After 5 seconds, the Service light begins flashing two-digit fault codes. If no faults are active, the
service light will flash code 25 (no codes). This is
also the procedure to enter, See “Product Diagnostic (PD) Mode” on page 16. for details.
Note: An “88” may show up in the dash at key on,
which is a normal power-up test of the display.
6. Observe the sequence of flashes on the service
light and record the codes. A 1- to 2-second pause
separates each stored code, and the sequence
automatically repeats after all codes have been
flashed.
1 Flash
SERVICE
Short
Code 13
pause
(1/2 sec)
3 Flashes
SERVICE
SERVICE
SERVICE
Long Pause
(3-4 sec)
2x
off
on
5. To Retrieve Inactive Codes: Turn key on. Turn the
key off and on 4 times within five seconds ending
with the key in the on position. After 5 seconds, the
Service light begins flashing two-digit fault codes.
If no faults are active, the service light will flash
code 25 (no codes).
4x
off
on
•Two digit fault codes will be displayed in the gear
display. Some vehicle may be equipped with a service light.
TRTS0930General Information | Fault Code Retrieval/Clearing
Clearing Fault Codes Manually
The following procedure clears all Inactive fault codes from
the TECU’s memory. Active fault codes are automatically
cleared when the fault has been corrected.
Note: You may use a PC-based service tool, such as Ser-
viceRanger, to clear fault codes.
1. Place shift lever in neutral.
2. Set parking brake.
3. Turn key on with engine off.
4. Turn key off and on 6 times within 5 seconds ending with key on.
6x
off
Note: If the codes have been successfully cleared, the
Service light will come on and stay on for five
seconds. The gear display will show 25 (no
codes).
5. Turn the key off and allow the system to power
down.
on
Retrieving Fault Codes with
ServiceRanger
This section determines if the TECU is communicating on
the vehicle's J1939 data link and if the component has set
any fault codes. Proper system operation requires the TECU
to communicate with other ECUs on the vehicle's J1939
data link.
Note: This procedure requires ServiceRanger 3.0 or later
and an approved RP1210A communications adapter
that supports J1939 communications.
Detecting Components
1. Connect the service PC to the vehicle's 9-way
J1939 diagnostic port connector with an approved
RP1210A communications adapter.
2. Start the ServiceRanger program and verify that a
connection has been established with the vehicle's
J1939 data link.
•If the TECU is not detected by ServiceRanger,
proceed to the Electrical Pretest procedure to
ensure the TECU has power, and that all components are properly connected the vehicle's
J1939 data link.
Viewing Fault Codes
View the Vehicle Fault Codes screen in ServiceRanger and
verify if any Active or Inactive codes have been set.
1. If an Active code is present, record the vehicle fault
information and proceed to Diagnostic Procedure
in this manual for the Active code. Do not clear any
codes at this time.
2. If only Inactive codes are present, record the vehicle fault information and clear all fault codes. Road
test the vehicle to verify proper operation.
Product Diagnostic (PD) Mode | General InformationTRTS0930
Product Diagnostic (PD) Mode
Product Diagnostic (PD) Mode
PD Mode is used to help diagnose Inactive codes that may
have been set during normal driving. This diagnostic mode
increases the sensitivity of the fault sensing capability
This procedure tests loose, degraded and intermittent connections. Use the Active Fault Isolation Procedure to guide
you to the wiring and connectors that are associated with
the Inactive fault codes. Flex the wiring harness and connectors and attempt to recreate the fault after activating PD
Mode.
PD Mode is only to be used by a trained service technician
in an authorized dealer.
This procedure is to be used prior to performing fault isolation procedures for component-type codes when there are
no Active codes present.
To enter PD Mode:
Note: Vehicle will not start in PD Mode. You must turn vehi-
cle key off to exit PD Mode.
1. Vehicle must be stationary, engine off, set vehicle
parking brake.
•If the fault is detected during PD Mode the gear display will display the active fault. The warning tone
will only sound when the fault is active and the tone
will stop when the fault is Inactive. The fault will
stay in the gear display until the system is powered
down.
Note: Active codes set during PD Mode will not be
stored as Inactive.
7. If a fault is detected, exit PD Mode and perform the
corresponding Fault Isolation Procedure.
2. Turn the key off and on 2 times, starting with key
on and ending with key on.
Note: Dash may display an 88 at key on. This is a nor-
mal power-up test of the display.
3. The gear display will flash a 25 then a solid PD
(Product Diagnostic Mode) and the mode will be
activated.
4. The service light shall flash code 25 once indicating
no codes. The service light shall then illuminate
solid to indicate PD Mode until such time that an
Active code is detected or PD Mode is exited.
5. Refer to PD Mode section in Fault Isolation procedure for the Inactive fault to be diagnosed.
6. PD will remain in gear display until an active fault
has been set during the PD Mode fault isolation
procedure.
The pretest does not relate to any specific fault code, but
must be completed before performing Fault Code Isolation
table procedures. The pretest verifies the batteries are fully
charged.
All Generation 3 products require the OEM to supply power
to the Electronic Control Unit (ECU) and to the optional
Electric Clutch Actuator (ECA).
Detection
There is no detection process specifically for the basic electrical supply; however, failures of this type are generally
detected by the transmission or driver as some other type
of fault code or symptom.
Fallback
There is no fallback for the electrical pretest; however, it
may affect other systems.
Possible Causes
The pretest can be used for:
•Low batteries
•Starter/Battery connections
•Main power harness to the Transmission Electronic
Control Unit (TECU)
Heavy-Duty Electric Clutch Actuator
(ECA) Power Harness
Important: The TECU and ECA must be wired to a
non-switched power source at the battery. If a disconnect
switch is required, the recommended practice is to wait a
minimum of three minutes before using the disconnect
switch.
It is the OEM responsibility to provide power and ground to
the TECU and ECA from the battery which supplies the
starter.
The power (+) connection must include overload protection
per Federal Motor Carrier Safety Regulations, Section
393.31. The TECU main power and ground must be a direct
connection from the battery posts to the TECU connector.
At 120° C, these conductors must be able to carry 30 amps
@ 9 volts with no more than 0.05 ohms per wire (0.1 ohms
total) for a total voltage drop from the battery posts to the
TECU connector not to exceed 3.0 volts. ECA main power
and ground must be able to carry 50 amps @ 9 volts with
no more than 0.025 ohms per wire (.05 ohms total) at 120°
C. Duration of the 50 amp current draw will not exceed 20
milliseconds.
The main power 30-amp fuse connection for the TECU must
be identified with a tag at the battery.
The main power 50-amp fuse connection for the ECA must
be identified with a tag at the battery.
The battery positive post and negative post must be disconnected PRIOR to any type of welding on any Fuller Automated Transmission-equipped vehicles.
Removal of fuses is not recommended as the method of
disconnecting power from the ECU. Making and breaking a
circuit through tin plated terminals (e.g. ring terminals,
fuses, most connectors) will destroy the plating on the terminal. Opening a switch contact or the main power link is
the recommended method of interrupting power.
Application of more than 36 volts to the system (such as
jump-starting) will cause system shutdown and possible
electrical component damage.
Do not switch off the battery and ignition power and ground
to the TECU during the engine start process.
TWO BATTERY BANKS - TWO BATTERIES IN SERIES PER BANK - DUAL JUMPERS TO
STARTER
BATTERIES ARE CONNECTED IN SERIES/PARALLEL BY PAIRS. GEN 3 POWER
SUPPLIED BY BATTERY CLOSEST TO STARTER (BOTH PLUS AND MINUS)
+ -
BATTERY
12 VOLT
+ -
BATTERY
12 VOLT
+ -
BATTERY
12 VOLT
+ -
BATTERY
12 VOLT
MAG
RELAY
TWO BATTERY BANKS - TWO BATTERIES PER BANK WITH DISCONNECT
BATTERIES ARE CONNECTED IN SERIES/PARALLEL BY PAIRS - DISCONNECT FOR CAB AND VEHICLE
START - DISCONNECTED PAIR PROVIDES "DEEP DISCHARGE" CAB COMFORT AND ENTERTAINMENT
CAPABILITY. GEN 3 POWER SUPPLIED FROM BATTERY SET CLOSEST TO STARTER AND COMMON TO
CAB POWER
GEN 3 ECU BATTERY
PLUS
GEN 3 ECU BATTERY
MINUS
STARTER BATTERY MINUS
1
STARTER BATTERY PLUS
1
+ -
BATTERY
12 VOLT
+ -
BATTERY
12 VOLT
+ -
BATTERY
12 VOLT
+ -
BATTERY
12 VOLT
ONE BATTERY BANK - FOUR BATTERIES - ONE CABLE PAIR TO STARTER
BATTERIES ARE CONNECTED IN SERIES/PARALLEL BY PAIRS. GEN 3 POWER
SUPPLIED FROM BATTERY CLOSEST TO STARTER WITH CAB POWER. (BOTH PLUS
AND MINUS)
TWO BATTERY BANKS - BATTERY NEGATIVE DISCONNECT SWITCH
BATTERIES ARE DISCONNECTED AT POWER DOWN WHEN VEHICLE STORED INSIDE. GEN 3 POWER SUPPLIED FROM BATTERY
CLOSEST TO THE STARTER. NEGATIVE CONNECTION AT POINT OF VEHICLE CABLE CONNECTION TO DISCONNECT SWITCH
BATTERY
MINUS
STARTER BATTERY
PLUS
STARTER BATTERY
MINUS
VEHICLE BATTERY
MINUS
GEN 3 ECU BATTERY
PLUS
GEN 3 ECU BATTERY
MINUS
STARTER BATTERY
MINUS
STARTER BATTERY
PLUS
+-
BATTERY
12 VOLT
+-
BATTERY
12 VOLT
+-
BATTERY
12 VOLT
+-
BATTERY
12 VOLT
POWER DISTRIBUTION MODULE
BATTERIES ARE CONNECTED IN SERIES/PARALLEL, POWER PLUS AND MINUS CONNECTED ON BATTERY CLOSEST TO THE
STARTER. CABLES SIZE AND LENGTH OPTIMIZED FOR LOW VOLTAGE DROP
GEN 3 ECU BATTERY
PLUS
GEN 3 ECU BATTERY
MINUS
POWER
DISTRIBUTION
MODULE
(POWER BUS AND
OVER CURRENT
DEVICES)
STARTER BATTERY
MINUS
STARTER BATTERY
PLUS
STARTER
CAB BATTERY
PLUS
GEN 3 ECU BATTERY
MINUS
GEN 3 ECU BATTERY
PLUS
STARTER BATTERY CONNECTION
GEN 3 POWER PLUS AND MINUS CONNECTED ON BATTERY CLOSEST TO THE STARTER.