2007 Commander XK Factory Service Manual 8 - ELECTRICAL

B185F-PASSENGER WINDOW CONTROL CIRCUIT LOW - PDM





For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
(Q312) PASSENGER WINDOW EXPRESS UP DRIVER CIRCUIT SHORT TO GROUND
 
(Q322) PASSENGER WINDOW EXPRESS DOWN DRIVER CIRCUIT SHORTED TO THE (Q312) PASSENGER WINDOW EXPRESS UP DRIVER CIRCUIT
 
WINDOW MOTOR SHORTED
 
PASSENGER DOOR MODULE (PDM)
 




Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

Turn the ignition on.
With the scan tool, record and erase DTC's
Try to operate the Passenger Window up and down several times.
Wait 30 seconds.
With the scan tool, read DTC's.

Does the scan tool display B185F–PASSENGER WINDOW CONTROL CIRCUIT LOW?

Yes


No

2. WINDOW MOTOR SHORTED



With the scan tool, erase DTC's.
Turn the ignition off.
Disconnect the Passenger Window Motor connector.
Turn the ignition on.
Operate the passenger window switch up and down several times.
With the scan tool, read DTC's.

Does the scan tool display B185F–PASSENGER WINDOW CONTROL CIRCUIT LOW?

No


Yes

3. (Q312) PASSENGER WINDOW EXPRESS UP DRIVER CIRCUIT SHORT TO GROUND



Measure the resistance between Ground and the (Q312) Passenger Window Express Up Driver circuit.

Is the resistance below 1000.0 ohms?

Yes


No

4. (Q322) PASSENGER WINDOW EXPRESS DOWN DRIVER CIRCUIT SHORT TO (Q312) PASSENGER WINDOW EXPRESS UP DRIVER CIRCUIT



Measure the resistance between the (Q322) Passenger Window Express Down Driver circuit and the (Q312) Passenger Window Express Up Driver circuit.

Is the resistance below 1000.0 ohms?

Yes


No