Jeep Grand Cherokee WK. Manual — part 434

B1661-FRONT FOG LAMP CONTROL CIRCUIT OPEN

8L - 46

LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS

WK

B1661-FRONT FOG LAMP CONTROL CIRCUIT OPEN (CONTINUED)

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:

•

With the Fog Lamps activated.

•

Set Condition:

•

When the IPM detects an OPEN 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: B1661-FRONT FOG LAMP CONTROL CIRCUIT OPEN?

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 - 47

B165C-PARK LAMP CONTROL CIRCUIT LOW

8L - 48

LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS

WK

B165C-PARK LAMP CONTROL CIRCUIT LOW (CONTINUED)

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:

•

With the Park Lamps activated.

•

Set Condition:

•

When the FCM detects a LOW condition.

Possible Causes

FRONT CONTROL MODULE

Diagnostic Test

1.

INTEGRATED POWER MODULE

Turn the ignition off.

Replace the Park Lamp relay with and known good relay.

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

Turn the Park Lamps ON then OFF.

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

Does the Scan Tool read: B165C-PARK 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 - 49