Chrysler Voyager. Manual — part 253

Symptom:

BACKUP LAMP OUTPUT OPEN

When Monitored and Set Condition:

BACKUP LAMP OUTPUT OPEN

When Monitored:

Trans in reverse.

Set Condition:

Voltage output status is Low.

POSSIBLE CAUSES

INTERMITTENT CONDITION

GROUND CIRCUIT

BACKUP LAMP OPEN

BACKUP LAMP DRIVER CIRCUIT OPEN

BODY CONTROL MODULE

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRBIII

t, clear all BCM, IPM DTC’s.

Actuate the Backup Lamps.
With the DRBIII

t, read the DTC information.

Does the DRBIII

t read: Backup Lamp Output Open?

All

Yes

→ Go To 2

No

→ The condition that caused the symptom is currently not present.

Inspect the related wiring for a possible intermittent condition.
Look for terminal push out or any chafed, pierced, pinched, or
partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.

2

Turn the ignition off
Disconnect the inoperative rear tail lamp harness connector.
Using a 12-volt test light connected to 12-volts, check the ground circuit.
Does the test light illuminate brightly?

All

Yes

→ Go To 3

No

→ Repair the Ground Circuit.

Perform BODY VERIFICATION TEST - VER 1.

439

EXTERIOR LIGHTING

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the inoperative rear tail lamp harness connector.
Turn the ignition on.
Engage the transmission to reverse.
Using a 12-volt test light connected to ground, check the Backup Lamps Output
circuit.
Does the test light illuminate brightly?

All

Yes

→ Replace the applicable Backup Lamp.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 4

4

Turn the ignition off.
Disconnect the Body Control Module harness connector.
Disconnect the inoperative rear tail lamp harness connector.
Measure the resistance of the Backup Lamp Driver Circuit.
Is the resistance above 5.0 ohms?

All

Yes

→ Repair the Backup Lamp Driver Circuit for an open condition.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Body Control Module.

Perform BODY VERIFICATION TEST - VER 1.

440

EXTERIOR LIGHTING

BACKUP LAMP OUTPUT OPEN —

Continued

Symptom:

BACKUP LAMP OUTPUT SHORT

When Monitored and Set Condition:

BACKUP LAMP OUTPUT SHORT

When Monitored:

With the transmission in reverse.

Set Condition:

When voltage output status is Low.

POSSIBLE CAUSES

INTERMITTENT CONDITION

BACKUP LAMP

BACKUP LAMP DRIVER CIRCUIT SHORT TO GROUND

BODY CONTROL MODULE

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRBIII

t, clear all BCM DTC’s.

Place the transmission in reverse.
With the DRBIII

t, read the DTC information.

Does the DRBIII

t read: Backup Lamp Output Short?

All

Yes

→ Go To 2

No

→ The condition that caused the symptom is currently not present.

Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced,pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.

2

Turn the ignition on.
Place the transmission in reverse.
Using a 12-volt test light connected to ground, check the Backup Lamp Output
circuit.
Does the test light illuminate brightly?

All

Yes

→ Replace the Backup Lamp.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 3

3

Turn the ignition off.
Disconnect the Body Control Module harness connector.
Disconnect both rear tail lamp harness connector.
Measure the resistance of the Backup Lamp Driver circuit and ground.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the Backup Lamp Driver circuit for a short to ground.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Body Control Module.

Perform BODY VERIFICATION TEST - VER 1.

441

EXTERIOR LIGHTING

Symptom:

FRONT FOG LAMP RELAY OPEN

When Monitored and Set Condition:

FRONT FOG LAMP RELAY OPEN

When Monitored:

Ignition On.

Set Condition:

The IPM detects high current from the fog lamp relay control circuit.

POSSIBLE CAUSES

MISSING RELAY

OPEN FUSE

FOG LAMP RELAY

INTERMITTENT CONDITION

FOG LAMP RELAY CONTROL CIRCUIT OPEN

FRONT CONTROL MODULE

INTELLIGENT POWER MODULE

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRBIII

t, clear all IPM DTC’s.

Turn the Fog Lamps on.
With the DRBIII

t, read the DTC information.

Does the DRBIII

t read: Front Fog Lamp Relay Open?

All

Yes

→ Go To 2

No

→ Go To 5

2

Turn the ignition off.
Check the IPM to make certain the Fog Lamp Relay is present.
Is the Fog Lamp Relay present?

All

Yes

→ Go To 3

No

→ Replace the missing Fog Lamp Relay.

Perform BODY VERIFICATION TEST - VER 1.

3

Turn the ignition off.
Install a known good relay in place of the fog lamp relay.
Turn the Fog Lamps On.
Do the Fog Lamps operate normally?

All

Yes

→ Replace the Fog Lamp Relay.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 4

442

EXTERIOR LIGHTING