Diagnosis And Testing - Sunroof

WARNING: This page is about a different car, the 2011 RAM Pickup and 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Any diagnosis of the power sunroof system should begin with the use of a scan tool and the proper Diagnostic Procedures Information. The scan tool can provide confirmation that the Controller Area Network (CAN) Data Bus is functional, that all of the electronic modules are sending and receiving the proper messages on the CAN Data Bus, and that the power sunroof motor is being sent the proper hard wired output by the sunroof switch.

Check the condition of the circuit protection and inspect all wiring connector pins for proper engagement and continuity. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

Refer to the appropriate diagnostic information.

NOTE:

If there is no sunroof movement when the OPEN or CLOSED button are pushed but the sunroof operates when the VENT button is pushed and held the sunroof motor/module is out of calibration. Complete the sunroof position calibration procedure prior to performing any sunroof diagnostics. Refer to MOTOR, Sunroof , Standard Procedure .

For possible causes, refer to SUNROOF DIAGNOSIS CHART . Before beginning sunroof diagnostics, verify that all other power accessories are in proper operating condition. If not, a common electrical problem may exist.

SUNROOF DIAGNOSIS CHART

SYMPTOM	POSSIBLE CAUSE	CORRECTION
Sunroof completely inoperative.	Inoperative control switch.	Perform sunroof switch diagnostics. Refer to SWITCH, Sunroof , Diagnosis and Testing .
	Inoperative circuit ground between sunroof motor/module and body harness.	Inspect ground connections and wiring. Repair as necessary.
	Inoperative power circuit between sunroof motor/module, control switch, and body harness.	Check the condition of the circuit protection and inspect all wiring. Repair as necessary.
	Inoperative sunroof motor/module.	Replace the sunroof motor/module. Refer to MOTOR, Sunroof , Removal .
Audible whine when switch is depressed, sunroof does not operate.	Inoperative sunroof motor/module.	Replace the sunroof motor/module. Refer to MOTOR, Sunroof , Removal .
	Binding cable.	Repair or replace binding cable as necessary.
Audible clicking or ratcheting when switch is pressed, sunroof does not operate.	Broken or worn drive cable.	Repair or replace binding cable as necessary.
	Worn drive motor gear.	Replace the sunroof motor/module. Refer to MOTOR, Sunroof , Removal .
	Sunroof glass panel out of adjustment.	Perform sunroof glass panel adjustment procedure. Refer to GLASS, Sunroof , Adjustments .
Sunroof vents and opens, but does not close.	Broken or disengaged trough guide.	Repair trough guide as necessary.
	Binding cable.	Repair or replace binding cable as necessary.
	Inoperative sunroof "CLOSE" circuit.	Check the condition of the circuit, connections and wiring. Repair as necessary.
	Inoperative control switch.	Perform sunroof switch diagnostics. Refer to SWITCH, Sunroof , Diagnosis and Testing .
	Inoperative sunroof motor/module.	Replace the sunroof motor/module. Refer to MOTOR, Sunroof , Removal .
Sunroof vents and closes, but does not open.	Binding cable or mechanism.	Repair or replace binding cable as necessary.
	Inoperative sunroof "OPEN" circuit.	Check the condition of the circuit, connections and wiring. Repair as necessary.
	Inoperative control switch.	Perform sunroof switch diagnostics. Refer to SWITCH, Sunroof , Diagnosis and Testing .
	Inoperative sunroof motor/module.	Replace the sunroof motor/module. Refer to MOTOR, Sunroof , Removal .
Sunroof does not vent	Binding cable or mechanism.	Repair or replace binding cable as necessary.
	Inoperative sunroof "VENT" circuit.	Check the condition of the circuit, connections and wiring. Repair as necessary.
	Inoperative control switch.	Perform sunroof switch diagnostics. Refer to SWITCH, Sunroof , Diagnosis and Testing .
	Inoperative sunroof motor/module.	Replace the sunroof motor/module. Refer to MOTOR, Sunroof , Removal .
Glass movement not consistent or glass does not operate smoothly	Sunroof glass panel out of adjustment.	Perform sunroof glass panel adjustment procedure. Refer to GLASS, Sunroof , Adjustments .