2007 Commander XK Factory Service Manual 8 - ELECTRICAL

B1839-PASSENGER DOORS UNLOCK CONTROL CIRCUIT LOW- CLUSTER





For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
(P292) PASSENGER DOORS UNLOCK RELAY CONTROL CIRCUIT SHORT TO GROUND
 
JUNCTION BLOCK
 
INSTRUMENT CLUSTER
 


Theory of Operation


If the (P292) Door Unlock Relay Control circuit has been shorted to ground for any length of time, the door latch solenoids will probably be damaged. Check the door latches after the short is repaired..



Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

With the scan tool, record and erase DTC's
Operate the door locks several times.
Cycle the ignition from on to off.
Turn the ignition on.
With the scan tool, read DTC's.

Does the scan tool display B1839–PASSENGER DOORS UNLOCK CONTROL CIRCUIT LOW?

Yes


No

2. DOOR UNLOCK RELAY SHORTED



Turn the ignition off.
Remove the PDC fuse No. 13.
Disconnect the Cluster C2 connector.
Measure the resistance between ground and the (P292) Door Unlock Relay Control circuit in the Cluster C2 connector

Is the resistance below 10000.0 ohms?

No


Yes

3. (P292) DOOR UNLOCK RELAY CONTROL CIRCUIT SHORT TO GROUND



Disconnect the Junction Block C2 connector (on top of junction block).
Measure the resistance between ground and the (P292) Door Unlock Relay Control circuit in the Cluster C2 connector.

Is the resistance below 10000.0 ohms?

Yes


No