Jeep Grand Cherokee WK. Manual — part 433

B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW

8L - 42

LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS

WK

B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW (CONTINUED)

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:

•

With the Fog Lamps activated.

•

Set Condition:

•

When the IPM detects a LOW condition.

Possible Causes

INTEGRATED POWER MODULE

Diagnostic Test

1.

INTEGRATED POWER MODULE

Turn the ignition off.

Replace the Fog Lamp relay with and known good relay.

With the Scan Tool, clear all IPM DTC’s.

Turn the Fog Lights ON then OFF.

With the Scan Tool, read the Wiper DTC’s.

Does the Scan Tool read: B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW?

Yes

>> Replace the Integrated Power Module in accordance with the service information.

Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES - STANDARD PROCEDURE)

No

>> Test complete.

Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES - STANDARD PROCEDURE)

WK

LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS

8L - 43

B1660-FRONT FOG LAMP CONTROL CIRCUIT HIGH

8L - 44

LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS

WK

B1660-FRONT FOG LAMP CONTROL CIRCUIT HIGH (CONTINUED)

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:

•

With the Front Fog Lamps activated.

•

Set Condition:

•

When the IPM detects a HIGH condition.

Possible Causes

INTEGRATED POWER MODULE

Diagnostic Test

1.

INTEGRATED POWER MODULE

Turn the ignition off.

Replace the Fog Lamp relay with and known good relay.

With the Scan Tool, clear all IPM DTC’s.

Turn the Fog Lamps ON then OFF.

With the Scan Tool, read the Wiper DTC’s.

Does the Scan Tool read: B1660-FRONT FOG LAMP CONTROL CIRCUIT HIGH?

Yes

>> Replace the Integrated Power Module in accordance with the service information.

Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES - STANDARD PROCEDURE)

No

>> Test complete.

Perform the BODY VERIFICATION TEST — VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES - STANDARD PROCEDURE)

WK

LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS

8L - 45