2007 Commander XK Factory Service Manual 8 - ELECTRICAL

B1836-DRIVER DOOR UNLOCK CONTROL CIRCUIT HIGH- CLUSTER





For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
(P1) DRIVER DOOR UNLOCK RELAY CONTROL CIRCUIT SHORT TO BATTERY
 
JUNCTION BLOCK
 
INSTRUMENT CLUSTER
 




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 B1836–DRIVER DOOR UNLOCK CONTROL CIRCUIT HIGH?

Yes


No

2. DOOR LOCK RELAY SHORTED TO BATTERY


NOTE: Ensure the windows are down before proceeding.


Turn the ignition off.
Lock the driver door.
Disconnect the Cluster C2 connector.
Momentarily connect a jumper wire between the (P1) Driver Door Unlock Relay Control circuit and the (Z905) Ground circuit in the Cluster C2 connector.

Did the driver door unlock?

Yes


No

3. (P1) DRIVER DOOR UNLOCK RELAY CONTROL CIRCUIT SHORTED TO BATTERY



Disconnect the Junction Block C2 connector (on top of junction block).
Turn the ignition on.
Measure the voltage between ground and the (P1) Driver Door Unlock Relay Control circuit in the Cluster C2 connector.

Is there any voltage present?

Yes


No