2007 Commander XK Factory Service Manual 8 - ELECTRICAL

*NO RESPONSE FROM PDM (PASSENGER DOOR MODULE)





For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
(A931) FUSED B(+) CIRCUIT OPEN OR SHORTED
 
GROUND CIRCUIT OPEN
 
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
 
PASSENGER DOOR MODULE
 




Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

Turn the ignition on.

NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.


With the scan tool, select ECU view.

NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.



Does the scan tool display a red X next to the module?

Yes


No

2. (A931) FUSED B(+) CIRCUIT OPEN OR SHORTED



Turn the ignition off.
Disconnect the Passenger Door Module C1 and C2 harness connectors.
Using a 12-volt test light connected to ground, check the (A931) Fused B(+) circuit.

Does the test light illuminate brightly?

Yes


No

3. GROUND CIRCUIT OPEN



Using a 12-volt test light connected to 12-volts, check each ground circuit.

Does the test light illuminate brightly for each circuit?

Yes


No

4. (D55) AND (D54) CAN B BUS CIRCUITS OPEN



NOTE: One open circuit will not cause this condition.


Measure the voltage between the (D54) CAN B Bus (-) circuit and ground.
Measure the voltage between the (D55) CAN B Bus (+) circuit and ground.

Is there any voltage present on either circuit?

Yes


No