Chrysler Voyager. Manual — part 431

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the negative (-) battery cable.
Disconnect the CAB harness connector.
NOTE: check connector - Clean/repair as necessary.
Measure the resistance of the Bus circuit between the CAB connector and the Data
Link Connector (DLC).
Is the resistance below 5.0 ohms?

All

Yes

→ Replace the Controller Antilock Brake in accordance with the

Service Information.
Perform ABS VERIFICATION TEST - VER 1.

No

→ Repair the Bus circuit for an open.

Perform ABS VERIFICATION TEST - VER 1.

4

Turn the ignition off.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any problems found?

All

Yes

→ Repair as necessary.

Perform ABS VERIFICATION TEST - VER 1.

No

→ Test Complete.

13

BRAKES (CAB)

BUS SYSTEM COMMUNICATION FAILURE —

Continued

Symptom:

CAB INTERNAL FAILURE

When Monitored and Set Condition:

CAB INTERNAL FAILURE

When Monitored:

Ignition on. The CAB monitors its internal microprocessors for correct

operation.

Set Condition:

If the CAB detects an internal fault, the DTC is set.

POSSIBLE CAUSES

INTERMITTENT DTC

DAMAGED CAB/CAB HARNESS CONNECTOR

CAB - GROUND CIRCUIT OPEN

ABS VALVE FUSED B(+) CIRCUIT OPEN

ABS PUMP FUSED B(+) CIRCUIT OPEN

CAB - INTERNAL FAULT

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRBIII

t, read DTCs.

With the DRBIII

t, erase DTCs.

Turn the ignition off.
Turn the ignition on.
With the DRBIII

t, read DTCs.

Does the DRBIII

t display CAB INTERNAL FAILURE?

All

Yes

→ Go To 2

No

→ Go To 6

2

Turn the ignition off.
Disconnect the CAB harness connector.
Inspect the CAB/CAB harness connector for damage.
Is ther any broken, bent, pushed out, corroded or spread terminals?

All

Yes

→ Repair as necessary.

Perform ABS VERIFICATION TEST - VER 1.

No

→ Go To 3

3

Turn the ignition off.
Disconnect the CAB harness connector.
Using a 12-volt test light connected to 12-volts, probe the CAB harness connector
ground circuits.
Did the test light illuminate?

All

Yes

→ Go To 4

No

→ Repair the CAB Ground circuit for an open.

Perform ABS VERIFICATION TEST - VER 1.

14

BRAKES (CAB)

TEST

ACTION

APPLICABILITY

4

Turn the ignition off.
Using a 12-volt test light connected to ground, probe the ABS Valve Fused B(+) circuit
at the CAB harness connector.
Did the test light illuminate?

All

Yes

→ Go To 5

No

→ Repair the ABS Valve Fused B(+) circuit for an open.

Perform ABS VERIFICATION TEST - VER 1.

5

Turn the ignition off.
Using a 12-volt test light connected to ground, probe the ABS Pump Fused B(+)
circuit at the CAB harness connector.
Did the test light illuminate?

All

Yes

→ Replace the Controller Antilock Brake in accordance with the

Service Information.
Perform ABS VERIFICATION TEST - VER 1.

No

→ Repair the ABS Pump Fused B(+) circuit for an open.

Perform ABS VERIFICATION TEST - VER 1.

6

Turn the ignition off.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Refer to any Hotline letters or Technical Service Bulletins that may apply.
Were any problems found?

All

Yes

→ Repair as necessary.

Perform ABS VERIFICATION TEST - VER 1.

No

→ Test Complete.

15

BRAKES (CAB)

CAB INTERNAL FAILURE —

Continued

Symptom:

CLUSTER LAMP FAILURE

When Monitored and Set Condition:

CLUSTER LAMP FAILURE

When Monitored:

Key ON. After Key-ON bulb check.

Set Condition:

When the instrument cluster informs the CAB that the cluster cannot

turn on the ABS Lamp.

POSSIBLE CAUSES

INSTRUMENT CLUSTER OR ABS DTC PRESENT

INSTRUMENT CLUSTER

CAB--NO DTC SIGNAL TO THE INSTRUMENT CLUSTER

CAB -- PERMANENT FAULT SIGNAL

CAB--NO KEY-ON BULB CHECK SIGNAL

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRBIII

t, read DTCs.

Are there any Instrument Cluster or ABS DTCs present?

All

Yes

→ Refer to the appropriate category for the related symptom(s).

Perform ABS VERIFICATION TEST - VER 1.

No

→ Go To 2

2

Turn the ignition off.
Perform the Key-on Bulb Check.
Does the ABS Warning Indicator light and then go out after a few seconds?

All

Yes

→ Go To 3

No. Light remains after bulb check.

Replace the Controller Antilock Brake in accordance with the
Service Information.
Perform ABS VERIFICATION TEST - VER 1.

No. Indicator never comes on.

Go To

4

16

BRAKES (CAB)