Ford F-450 1999 Workshop Manual

ford :: Ford Truck F 450 4WD Super Duty V10-

6.8L VIN S (1999)

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0500-P05ZZ > P0500 - P0504, ( P0501 P0502 P0503 0500 0501 0502 0503 0504 ) > System Information > System Diagnosis > P0500 ( P 0500 )

P0500 - P0504: Testing and InspectionP0500 ( P 0500 )

For diagnosis of refer to the system experiencing the problem.P0500

Computers and Control Systems or Transmission Control System

Gas Engines

5.4L, 6.8L F-Series Over 8500 GVW
Go to DF1. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/DF - Vehicle SpeedCircuit Check

F-Series 4x4 Under 8500 Manual Shift On the Fly (MSOF)

Go to DP30. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/DP - VehicleSpeed/Transfer Case Speed Sensors/DP30 - DP35

All Others

Go to DP1. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/DP - VehicleSpeed/Transfer Case Speed Sensors

Diesel

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0500-P05ZZ > P0500 - P0504, ( P0501 P0502 P0503 0500 0501 0502 0503 0504 ) > System Information

> System Diagnosis > P0500 ( P 0500 ) > Page 9

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0500-P05ZZ > P0500 - P0504, ( P0501 P0502 P0503 0500 0501 0502 0503 0504 ) > System Information

> System Diagnosis > P0500 ( P 0500 ) > Page 10

F 450 4WD Super Duty V10-6.8L VIN S (1999)

For complete Engine Control diagnostic information, See: Powertrain Management/Computers and Control Systems/Testing and Inspection

Transfer Case

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0500-P05ZZ > P0500 - P0504, ( P0501 P0502 P0503 0500 0501 0502 0503 0504 ) > System Information

> System Diagnosis > P0500 ( P 0500 ) > Page 11

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Part 4 Of 5

For complete Transfer Case diagnostic information, See: Transmission and Drivetrain/Transfer Case/Testing and Inspection

Windshield Wiper

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0500-P05ZZ > P0500 - P0504, ( P0501 P0502 P0503 0500 0501 0502 0503 0504 ) > System Information

> System Diagnosis > P0500 ( P 0500 ) > Page 12

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Part 4 Of 5

For complete Windshield Wiper diagnostic information, See: Wiper and Washer Systems/Testing and Inspection

Driver/Vehicle Information Display

For complete Driver/Vehicle Information Display diagnostic information, See: Accessories and Optional Equipment/Driver/Vehicle InformationDisplay/Testing and Inspection

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 )

P0720 - P0724: Testing and InspectionP0720 ( P 0720 )

Manual Transmission (M.T.)

For diagnosis of P0720 refer to chart

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information

> System Diagnosis > P0720 ( P 0720 ) > Page 18

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information

> System Diagnosis > P0720 ( P 0720 ) > Page 19

F 450 4WD Super Duty V10-6.8L VIN S (1999)

For complete Engine Control diagnostic information, See: Powertrain Management/Computers and Control Systems/Testing and Inspection

Automatic Transmission (A.T.)

For diagnosis of P0720 refer to chart

Part 6 Of 7

For complete Transmission Control diagnostic information, See: Powertrain Management/Transmission Control Systems/Testing and Inspection
For complete Engine Control diagnostic information, See: Powertrain Management/Computers and Control Systems/Testing and Inspection

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 ) > Page 20

P0720 - P0724: Testing and InspectionP0721 ( P 0721 )

Manual Transmission (M.T.)

For diagnosis of P0721 refer to chart

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information

> System Diagnosis > P0720 ( P 0720 ) > Page 21

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information

> System Diagnosis > P0720 ( P 0720 ) > Page 22

F 450 4WD Super Duty V10-6.8L VIN S (1999)

For complete Engine Control diagnostic information, See: Powertrain Management/Computers and Control Systems/Testing and Inspection

Automatic Transmission (A.T.)

For diagnosis of P0721 refer to chart

Part 6 Of 7

For complete Transmission Control diagnostic information, See: Powertrain Management/Transmission Control Systems/Testing and Inspection
For complete Engine Control diagnostic information, See: Powertrain Management/Computers and Control Systems/Testing and Inspection

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 ) > Page 23

P0720 - P0724: Testing and InspectionP0722 ( P 0722 )

Manual Transmission (M.T.)

For diagnosis of P0722 refer to chart

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information

> System Diagnosis > P0720 ( P 0720 ) > Page 24

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724, ( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information

> System Diagnosis > P0720 ( P 0720 ) > Page 25

F 450 4WD Super Duty V10-6.8L VIN S (1999)

For complete Engine Control diagnostic information, See: Powertrain Management/Computers and Control Systems/Testing and Inspection

Automatic Transmission (A.T.)

For diagnosis of P0722 refer to chart

Part 7 Of 7

For complete Transmission Control diagnostic information, See: Powertrain Management/Transmission Control Systems/Testing and Inspection
For complete Engine Control diagnostic information, See: Powertrain Management/Computers and Control Systems/Testing and Inspection

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Accessory Delay Relay > Component Information > Locations

Accessory Delay Relay: Locations

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Accessory Delay Relay > Component Information >

Locations > Page 32

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Accessory Delay Relay > Component Information > Locations> Page 33

Accessory Delay Relay: Testing and Inspection

Component Testing Procedure

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory Delay Module > Accessory Delay Relay > Component Information >

Locations > Page 34

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Terminals

Schematic

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Specifications

General Module: Specifications

Generic Electronic Module/Central Timer Module Bolts18-26 in.lb

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and Instructions

General Module: Diagram Information and Instructions

How to Find and Use These Diagrams

Diagrams are presented in three main categories:

- Power Distribution Diagrams

- System Diagrams

- Grounds Diagrams

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 40

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 41

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Diagram 13-7 (Sample Power Distribution Diagram Page)

Power Distribution Diagrams

Provide the circuit details of how the system diagrams are powered. The power distribution source is shown at the top of a diagram page. All wires,connectors, and splices are shown in the same manner that the current flows, ending at the component/system being powered near the bottom of adiagram page. Circuits that go from one diagram page to another will be marked with large arrow heads indicating which diagram page the circuit wentto/came from.
The power distribution diagrams can be found at Starting and Charging/Power and Ground Distribution, or by following the hyperlinks at the top of the

diagram pages within the system diagrams.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 42

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Diagram 85-1 (Sample System Diagram Page)

System Diagrams

Components that work together are shown together in a system/subsystem diagram or set of diagrams. The system feed (circuit breaker, fuse, etc.) isshown at the top of a diagram page. All wires, connectors, components, and splices are shown in the same manner that the current flows, ending at theground at the bottom of a diagram page. Circuits that go from one diagram page to another will be marked with large arrow heads indicating whichdiagram page the circuit went to/came from.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 43

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Diagram 10-1 (Sample Grounds Diagram Page)

Grounds Diagrams

Provide the circuit details of how the system diagrams are grounded. This information is useful for checking interconnections of the grounding circuits ofdifferent systems. The components/systems being grounded are shown at the top of a diagram page. All wires, connectors, and splices are shown in thesame manner that the current flows, ending at the ground at the bottom of a diagram page. Circuits that go from one diagram page to another will bemarked with large arrow heads indicating which diagram page the circuit went to/came from.

The grounds diagrams can be found at Starting and Charging/Power and Ground Distribution, or by following the hyperlinks at the bottom of thediagram pages within the system diagrams.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 44

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 45

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Electrical Symbols

Wire Color Code Identification

Wire and connector colors are listed as follows (standard Ford color abbreviations are used):

BUCOLOR ABBREVIATIONS

Blue NA Natural

BK Black OG Orange

BN Brown PK Pink
DB Dark Blue VT Purple
DG Dark Green RD Red
GN Green SR Silver
GY Gray TN Tan
LB Light Blue WH White
LG Light Green YE Yellow

Note:

Whenever a wire is labeled with two colors, the first color listed is the basic color of the wire, and the second color listed is the stripemarking of the wire.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and Instructions > Page 46

General Module: Diagnostic Aids

HOW TO FIND ELECTRICAL CONCERNS

TROUBLESHOOTING STEPS

These six steps present an orderly method of troubleshooting.

Step 1. Verify the concern.

- Operate the complete system to check the accuracy and completeness of the customer's complaint.

Step 2. Narrow the concern.

- Using the wiring diagrams, narrow down the possible causes and locations of the concern to pinpoint the exact cause.

-

Read the description notes at the components and study the wiring schematic. You should then know enough about the circuit operation todetermine where to check for the trouble.

Step 3. Test the suspected cause.

- Use electrical test procedures to find the specific cause of the symptoms.

-

The component location reference bars and the pictures will help you find components. Component location information for connectors,diodes, resistors, splices and grounds can be found at Vehicle Locations.

Step 4. Verify the cause.

-

Confirm that you have found the correct cause by connecting jumper wires and/or temporarily installing a known good component andoperating the circuit.

Step 5. Make the repair.

- Repair or replace the inoperative component.

Step 6. Verify the repair.

- Operate the system as in Step 1 and check that your repair has removed all symptoms without creating any new symptoms.

Some engine circuits may need special test equipment and special procedures. See Testing and Inspection for the specific component, system, orsub-system in question.

NOTE:

Most Ford testing and inspection procedures will be found at the system/sub-system level; only a few component tests are provided byOE.

TROUBLESHOOTING TOOLS

JUMPER WIRE

This is a test lead used to connect two points of a circuit. A Jumper Wire can bypass an open to complete a circuit.

WARNING: Never use a jumper wire across loads (motors,etc.) connected between hot and ground. This direct battery short may causeinjury or fire.

VOLTMETER

A DC Voltmeter measures circuit voltage. Connect negative (- or black) lead to ground, and positive (+ or red) lead to voltage measuring point.

OHMMETER

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 47

F 450 4WD Super Duty V10-6.8L VIN S (1999)

An Ohmmeter shows the resistance between two connected points.

TEST LAMP

12-volt

A Test Light is a bulb with two test leads. Voltage Check, Short Check.Uses:

SELF-POWERED TEST LAMP

CAUTION: When using a self -powered test lamp or ohmmeter; be sure power is off in circuit during testing. Hot circuits can causeequipment damage and false readings.

In an inoperative circuit with a switch in series with the load, jumper the terminals of the switch to power the load. If jumpering the terminalspowers the circuit, the switch is inoperative.

CONTINUITY CHECK(Locating open circuits)

Connect one lead of Self-Powered Test Lamp or Ohmmeter to each end of circuit. Lamp will glow if circuit is closed. Switches and fuses can bechecked in the same way.

VOLTAGE CHECK

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 48

F 450 4WD Super Duty V10-6.8L VIN S (1999)

The Self-Powered Test Lamp is a bulb, battery and set of test leads wired in series. When connected to two points of a continuous circuit, the bulbglows. Continuity Check, Ground Check.Uses:

Connect one lead of test lamp to a known good ground or the negative (-) battery terminal. Test for voltage by touching the other lead to the test

point. Bulb goes on when the test point has voltage.

SHORT CHECK

A fuse that repeatedly blows is usually caused by a short to ground. It's important to be able to locate such a short quickly.1. Turn off everything powered through the fuse.2. Disconnect other loads powered through the fuse:

- Motors: disconnect motor connector (Connector C4).

- Lights: remove bulbs.

3. Turn Ignition Switch to RUN (if necessary) to power fuse.4. Connect one Test Lamp lead to hot end of blown fuse. Connect other lead to ground. Bulb should glow, showing power to fuse. This step is

just a check to be sure you have power to the circuit)

5. Disconnect the test lamp lead that is connected to ground, and reconnect it to the load side of the fuse at the connector of the disconnected

component. (Connect the test lamp lead to connector C4).-

If the Test Lamp is off, the short is in the disconnected component.

-

GROUND CHECK

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 49

F 450 4WD Super Duty V10-6.8L VIN S (1999)

If the Test Lamp goes on, the short is in the wiring. You must find the short by disconnecting the circuit connectors, one at a time, until theTest Lamp goes out. For example, with a ground at X, the bulb goes out when C1 or C2 is disconnected, but not after disconnecting C3.This means the short is between C2 and C3.

Turn on power to the circuit. Perform a Voltage Check between the suspected inoperative ground and the frame. Any indicated voltage means that theground is inoperative.

Turn off power to the circuit. Connect one lead of a Self-Powered Test Lamp or Ohmmeter to the wire in question and the other lead to a knownground. If the bulb glows, the circuit ground is OK.

DIAGRAMS

These diagrams make it easy to identify common points in circuits. This knowledge can help narrow the concern to a specific area. For example, ifseveral circuits fail at the same time, check for a common power or ground connection (see Power and Ground Distribution Diagrams). If part of a

circuit fails, check the connections between the part that works and the part that doesn't work.

For example, if the lo beam headlamps work, but the high beams and the indicator lamp don't work, then power and ground paths must be good. Sincethe dimmer switch is the component that switches this power to the high beam lights and indicator, it is most likely the cause of failure.

TROUBLESHOOTING WIRING HARNESS AND CONNECTOR HIDDEN CONCERNS

The following illustrations are known examples of wiring harness, splices and connectors that will create intermittent electrical concerns. The concernsare hidden and can only be discovered by a physical evaluation as shown in each illustration.

NOTE:

Several components, such as the PCM, utilize gold plated terminals in their connections to the wiring harness. If those terminals need to bereplaced, they must be replaced with a gold plated terminal.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 50

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 51

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 52

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and Instructions > Page 53

General Module: Connector Views

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 54

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 55

F 450 4WD Super Duty V10-6.8L VIN S (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and Instructions > Page 56

General Module: Electrical Diagrams

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 57

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Diagram 59-1

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 58

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Diagram 59-2

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 59

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Diagram 59-3

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 60

F 450 4WD Super Duty V10-6.8L VIN S (1999)

Diagram 59-4
Diagram 59-5

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Page 61

General Module: Description and Operation

MODULE CONTROLLED FUNCTIONS

NOTE: (GEM)

The Generic Electronic Module must be reconfigured upon replacement. Refer to the NGS Tester help screen on the Ford ServiceFunction card to program tire size and axle ratio.(FSF)

The generic electronic module (GEM/CTM) incorporates the functions of several different modules into one and offers diagnostics to easily locateand repair concerns affecting the subsystems that it controls.

(DTC)

The GEM/CTM constantly monitors the systems under its control and reports a concern in the form of a Diagnostic Trouble Code . A DTCcan be retrieved with the New Generation STAR Tester through the communication link.(NGS)

The GEM/CTM has a sleep function to minimize battery consumption. During the sleep mode, the GEM/CTM turns off all outputs and monitorsonly the following:^

Door ajar (driver door, passenger door, and both rear doors)
^ Ignition (KEY-IN, ACC, and RUN)
^ Remote entry (lock, unlock, and panic)
^ Brake/parking brake switch
^ Headlamp dimmer switch

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Page 62

F 450 4WD Super Duty V10-6.8L VIN S (1999)

If a change of status occurs at one of these inputs while the GEM/CTM is asleep, the GEM/CTM will "wake up". when the GEM/CTM awakens, itperforms an internal self-test, and begins normal operation. At this point, all GEM/CTM functions will be operational.

During normal operation, the GEM/CTM can detect and record fault codes. An integral part of the normal GEM/CTM operation is continuousdiagnostic capability. Continuous diagnostics detect errors and change the GEM/CTM control strategy. There is no warning lamp for theGEM/CTM; therefore, a GEM/CTM DTC will direct you to the physical fault. Examples of faults that may be detected during normal operationinclude:^

GEM/CTM continuous self-test (RAM, ROM, EEPROM, A/D checking)
^ Output driver monitoring (opening circuit/short-to-ground or short to battery)

The GEM/CTM can only detect open circuit/short-to-ground faults when the GEM/CTM is not energizing a load, and short-to-battery faults whenthe GEM/CTM is attempting to energize a load. The GEM/CTM controls the following functions:

^ Wipers/washers
^ Warning chimes
^ Illuminated entry and courtesy lamps
^

One Touch-Down driver power window(OTD)

^ Remote keyless entry
^ Accessory delay
^ Electronic shift 4-wheel drive

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Page 63

General Module: Service and Repair
REMOVAL

NOTE: (FSF)

The GEM must be reconfigured upon replacement. Refer to the NGS Tester help screen on the Ford Service Function card to programtire size and axle ratio.

1. Disconnect the battery ground cable.

Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.CAUTION:

2. Remove the instrument panel steering column cover.
1 Unlock the retainers.
2 Remove the instrument panel steering column cover.

Use care when removing the instrument panel steering column cover or damage to the cover locating tab may occur.CAUTION:

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Diagrams > Page 64

F 450 4WD Super Duty V10-6.8L VIN S (1999)

3. Disconnect the bulkhead connectors from the instrument panel fuse junction panel.
1 Loosen the bolts.
2 Disconnect the bulkhead connectors.

4. Position the instrument panel fuse junction panel aside.
1 Remove the nuts.
2 Remove the bolts.

5. Remove the Generic Electronic Module/Central Timer Module .(GEM/CTM)

1 Disconnect the electrical connectors.
2 Remove the screws.
3 Remove the GEM/CTM.

INSTALLATION

1. To install, reverse the removal procedure.

NOTE:

When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptivestrategy. The vehicle may need to be driven or more to relearn the strategy.16 km (10 miles)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Specifications > Rear Anti-Lock Brakes

Electronic Brake Control Module: SpecificationsRear Anti-Lock Brakes
TORQUE SPECIFICATIONS

Anti-Lock Brake Control Module Screw ............................................................................................................................................ 4 Nm (35 inch lbs.)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Specifications > Rear Anti-Lock Brakes > Page 70

Electronic Brake Control Module: Specifications4-Wheel Anti-Lock Brakes
TORQUE SPECIFICATIONS

Anti-Lock Brake Control Module Screws .................................................................................................................................. 4-5 Nm (33-46 inch lbs.)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Specifications > Page 71

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Service and Repair > Four Wheel Anti-Lock Brake System (4WABS)

Electronic Brake Control Module: Service and RepairFour Wheel Anti-Lock Brake System (4WABS)

Removal

1. Remove the Electronic Hydraulic Control Unit .(EHCU)

2. Disconnect the pump motor electrical connector from the anti-lock brake control module.

3. Remove the anti-lock brake control module.
1 Remove the screws.
2 Remove the anti-lock brake control module.

Installation

1. To install, reverse the removal procedure.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Service and Repair > Four Wheel Anti-Lock Brake System (4WABS) > Page 74

Electronic Brake Control Module: Service and RepairRear Antilock Brake System (RABS)

Removal

On diesel equipped vehicles, remove the battery tray.

2. On gas equipped vehicles, disconnect the battery ground cable.3. On gas equipped vehicles, remove the engine air cleaner.4. On gas equipped vehicles, remove the EVAP canister.

5. Remove rubber dust cover.

- Remove pushpin.

6. Disconnect the three anti-lock brake control module electrical connectors.