2007 Commander XK Factory Service Manual 8 - ELECTRICAL

B1640-FRONT RIGHT TURN CONTROL CIRCUIT HIGH





For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
(L60) TURN SIGNAL CONTROL CIRCUIT
 
FRONT RIGHT TURN SIGNAL BULB
 
FRONT CONTROL MODULE
 




Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

Turn the ignition on.
Clear all FCM DTC's
Turn the Right Turn Signal on.
With the scan tool, read DTC's.

Does the scan tool read: B1640-FRONT RIGHT TURN CONTROL CIRCUIT HIGH?

Yes


No

2. FRONT RIGHT TURN SIGNAL BULB

Turn the ignition off.
Inspect the Front Right Turn Signal Bulb Assembly.

Is the inoperative bulb OK?

Yes


No

3. L60 RIGHT TURN SIGNAL CONTROL CIRCUIT



Turn the ignition off.
Disconnect the FCM C2 connector.
Measure the resistance of the (L60) Front Right Turn Signal Control circuit.

Is the resistance above 5.0 ohms?

No


Yes