TEST
ACTION
APPLICABILITY
11
Turn the ignition off.
Gain access to the power sunroof assembly and disconnect the Sunroof Control
Module connector (necessary to lower the overhead console, remove the
9A9 pillar
trim, sunvisors, assist handles and sunroof pinch welt).
Gain access to the Sunroof Switch and disconnect the connector.
Measure the resistance of the Power Sunroof Vent circuit between the Sunroof
Control Module and the Sunroof Switch.
Is the resistance below 5.0 ohms?
All
Yes
→
Go To
12
No
→
Repair the Power Sunroof Vent circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
12
Turn the ignition off.
Lower the Junction Block and remove the Sunroof Delay Relay.
Gain access to the power sunroof assembly and disconnect the Sunroof Control
Module connector (necessary to lower the overhead console, remove the
9A9 pillar
trim, sunvisors, assist handles and sunroof pinch welt).
Measure the resistance of the sunroof delay relay output circuit between the power
sunroof control module connector and the sunroof delay relay cavity 87.
Is the resistance below 5.0 ohms?
All
Yes
→
Go To
13
No
→
Repair the Sunroof Delay Relay Output circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
13
Remove the headliner as per instructions in
9Service Information9.
Disconnect the Sunroof Control Module connector.
Momentarily apply Fused 12 volts to the Sunroof Motor B+ circuit and ground the
Sunroof Motor B- circuit in the Module connector (the motor should run).
Reverse the polarity by switching the power and ground (the motor should run in the
opposite direction).
Did the glass move in both directions?
All
Yes
→
Run the motor until the Sunroof is fully closed and replace the
Sunroof Control Module
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Sunroof Motor.
Perform BODY VERIFICATION TEST - VER 1.
14
Turn ignition off.
Remove the Body Control Module.
Lower the Junction Block and remove the Sunroof Delay Relay.
Measure the resistance of the Sunroof Delay Relay Control circuit between the
Junction Block BCM connector and the Sunroof Delay Relay cavity #86.
Is the resistance below 5.0 ohms?
All
Yes
→
Go To
15
No
→
Replace the Junction Block.
Perform BODY VERIFICATION TEST - VER 1.
15
If there are no possible causes remaining, view Repair.
All
Repair
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
503
POWER TOP
*SUNROOF MOTOR INOPERATIVE —
Continued