Jeep Grand Cherokee WK. Manual — part 428
B163C-FRONT LEFT TURN CONTROL CIRCUIT HIGH
8L - 22
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
WK
B163C-FRONT LEFT TURN CONTROL CIRCUIT HIGH (CONTINUED)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Continuously
•
Set Condition:
When the Front Control Module detects a short to battery on the Control circuit.
Possible Causes
(L61) TURN SIGNAL CONTROL CIRCUIT
FRONT LEFT TURN SIGNAL BULB
FRONT CONTROL MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
Clear all FCM DTC’s
Turn the Left Turn Signal on.
With the scan tool, read DTC’s.
Does the scan tool read: B163C-FRONT LEFT TURN CONTROL CIRCUIT HIGH?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-
matic as a guide, inspect the wiring and connectors.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES - STANDARD PROCEDURE)
2.
FRONT LEFT TURN SIGNAL BULB
Turn the ignition off.
Inspect the Front Left Turn Signal Bulb Assembly.
Is the inoperative bulb OK?
Yes
>> Go To 3
No
>> Replace the Inoperative bulb in accordance with the service information.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES - STANDARD PROCEDURE)
WK
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 23
B163C-FRONT LEFT TURN CONTROL CIRCUIT HIGH (CONTINUED)
3.
L61 LEFT TURN SIGNAL CONTROL CIRCUIT OPEN
Turn the ignition off.
Disconnect the FCM C2 connector.
Measure the resistance of the (L61) Front Left Turn Signal Control cir-
cuit.
Is the resistance above 5.0 ohms?
No
>> Repair the (L61) Turn Signal Control circuit for an open.
Perform the BODY VERIFICATION TEST - VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES
- STANDARD PROCEDURE)
Yes
>> Replace the Front Control Module in accordance with the
service information.
Perform the BODY VERIFICATION TEST - VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES
- STANDARD PROCEDURE)
8L - 24
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
WK
B163F-FRONT RIGHT TURN CONTROL CIRCUIT LOW
WK
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 25
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