Chrysler Voyager. Manual — part 438

TEST

ACTION

APPLICABILITY

4

Turn the ignition off.
Disconnect the TRAC OFF Switch harness connector.
Disconnect the CAB harness connector.
Turn the ignition on.
Check the TRAC OFF Switch Sense circuit for short to B+ and for an open.
Is the Sense circuit shorted or open?

All

Yes

→ Repair the TRAC OFF Switch Sense circuit for a short to battery

or for an open.
Perform ABS VERIFICATION TEST - VER 1.

No

→ Replace the Body Control Module in accordance with the Service

Information.
Perform ABS VERIFICATION TEST - VER 1.

5

Turn the ignition off.
NOTE: The purpose of this test is to perform the Instrument Cluster self
test.
Depress and hold the Odometer Reset Button.
Turn the Key from OFF to ON and then back to OFF.
Release the Odometer Reset Button.
Do the Instrument Cluster Indicators and Gauges activate and deactivate?

All

Yes

→ Replace the Body Control Module in accordance with the Service

Information.
Perform ABS VERIFICATION TEST - VER 1.

No

→ Replace the Instrument Cluster in accordance with the Service

Information.
Perform ABS VERIFICATION TEST - VER 1.

6

NOTE: The purpose of this test is to perform the Instrument Cluster self
test.
Depress and hold the Odometer Reset Button.
Turn the Key from OFF to ON and then back to OFF.
Release the Odometer Reset Button.
Do the Instrument Cluster Indicators and Gauges activate and deactivate?

All

Yes

→ Go To 7

No

→ Replace the Instrument Cluster in accordance with the Service

Information.
Perform ABS VERIFICATION TEST - VER 1.

7

Turn the ignition off.
Disconnect the TRAC OFF Switch harness connector.
Turn the ignition on.
Does the TRAC OFF Indicator light and then go out?

All

Yes

→ Replace the TRAC OFF switch.

Perform ABS VERIFICATION TEST - VER 1.

No

→ Go To 8

41

BRAKES (CAB)

*TRAC OFF INDICATOR NEVER/ALWAYS ON —

Continued

TEST

ACTION

APPLICABILITY

8

Turn the ignition off.
Disconnect the TRAC OFF Switch harness connector.
Disconnect the BCM C4 harness connector.
Check the TRAC OFF Switch Sense circuit for short to ground.
Is the Sense circuit shorted to ground?

All

Yes

→ Repair the TRAC OFF Switch Sense circuit for a short to ground.

Perform ABS VERIFICATION TEST - VER 1.

No

→ Replace the Body Control Module in accordance with the Service

Information.
Perform ABS VERIFICATION TEST - VER 1.

42

BRAKES (CAB)

*TRAC OFF INDICATOR NEVER/ALWAYS ON —

Continued

Symptom:

*TRAC ON INDICATOR NEVER/ALWAYS ON

POSSIBLE CAUSES

CAB -- INTERNAL FAULT

CHECK TRACTION CONTROL SYSTEM

CLUSTER FAILS SELF TEST

CAB - NO TRAC MESSAGE

TEST

ACTION

APPLICABILITY

1

NOTE: The DRBIII

t must be able to communicate with the CAB prior to

performing this test.
NOTE: Note: If any CAB DTC’s are present, they must be repaired prior to
performing this test.
Perform the KEY-ON bulb test.
Did the TRAC Indicator illuminate and then go out?

All

Yes

→ Go To 2

No

→ Go To 3

2

Make sure the Traction Control system has not been deactivated with the TRAC OFF
switch.
NOTE: The purpose of this test is to determine if the Traction Control
system is operating.
With the DRBIII

t in Inputs/Outputs, read the ABS Pump Motor voltage state.

Accelerate sufficient to cause drive wheel slip.
Does the TRAC Indicator illuminate and the DRBIII

t display approximately 9 volts?

All

Yes

→ The traction control system is functioning normally.

Perform ABS VERIFICATION TEST - VER 1.

No

→ Replace the Controller Antilock Brake in accordance with the

Service Information.
Perform ABS VERIFICATION TEST - VER 1.

3

NOTE: The purpose of this test is to perform the Instrument Cluster self
test.
Depress and hold the Odometer Reset Button.
Turn the Key from OFF to ON and then back to OFF.
Release the Odometer Reset Button.
Do the Instrument Cluster Indicators and Gauges activate and deactivate?

All

Yes

→ Replace the Controller Antilock Brake in accordance with the

Service Information.
Perform ABS VERIFICATION TEST - VER 1.

No

→ Replace the Instrument Cluster in accordance with the Service

Information.
Perform ABS VERIFICATION TEST - VER 1.

43

BRAKES (CAB)

Symptom:

*NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE

POSSIBLE CAUSES

NO RESPONSE FROM CAB

GROUND CIRCUIT OPEN

OPEN FUSED IGNITION SWITCH OUTPUT CIRCUIT

OPEN PCI BUS CIRCUIT

CONTROLLER ANTILOCK BRAKE

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
Note: As soon as one or more module communicates with the DRB, answer
the question.
With the DRB, attempt to communicate with the Airbag Control Module (ACM).
With the DRB, attempt to communicate with the Body Control Module (BCM).
Was the DRB able to I/D or establish communications with either of the modules?

All

Yes

→ Go To 2

No

→ Refer to the Communications category and perform the symptom

PCI Bus Communication Failure.
Perform ABS VERIFICATION TEST - VER 1.

2

Turn the ignition off.
Disconnect the CAB harness connector.
Using a 12-volt test light connected to 12-volts, probe both ground circuits.
Is the test light illuminated for each circuit?

All

Yes

→ Go To 3

No

→ Repair the ground circuit(s) for an open.

Perform ABS VERIFICATION TEST - VER 1.

3

Turn the ignition off.
Disconnect the CAB harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output circuit.
Is the test light illuminated?

All

Yes

→ Go To 4

No

→ Repair the Fused Ignition Switch Output circuit for an open.

Perform ABS VERIFICATION TEST - VER 1.

44

COMMUNICATION