B1849

B1849-SUNROOF MOTOR CONTROL CIRCUIT/PERFORMANCE (STALLED)

For a complete wiring diagram consult Diagrams/Electrical.


- When Monitored:
Whenever the Sunroof motor/module is in motion.

- Set Condition:
Whenever the sunroof motor/module is attempting to move the sunroof in response to the input switches (or in response to an obstacle), and it doesn't appear to be responding correctly. This code is usually set when there is some type of binding in the sunroof mechanism.








Diagnostic Test


1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC's
Operate the Sunroof Switch in all positions several times.
Wait 30 seconds.
With the scan tool, read DTC's.
Does the scan tool display B1849-SUNROOF MOTOR CONTROL CIRCUIT/PERFORMANCE (STALLED)?

Yes


- Go To 2


No


- The conditions that caused this code to set are not present at this time. Check for any binding or sticking conditions.




2. SUNROOF MOTOR
NOTE: To further diagnose the sunroof, it is necessary to lower or remove the headliner.

NOTE: Any time the Sunroof Motor is removed, it is necessary to perform the Position Calibration when the motor is re-installed.

Turn the ignition off.
Lower the headliner to gain access to the Sunroof Motor/Module.
Remove the Sunroof Motor/Module from the sunroof.

NOTE: Ensure the A-Pillar connector is connected before proceeding.

Turn the ignition on.
While holding the motor firmly in your hand, have an assistant press the sunroof switch Open and after the motor stops press Close (NOT VENT) several times and observe the motor operation.
Did the motor operate smoothly and powerful?

Yes


- Repair or replace the sunroof mechanism as necessary.Perform BODY VERIFICATION TEST - VER 1.Body Verification Test.


No


- Replace the Sunroof Motor Module.
- Sunroof Motor With Control Unit - InstallationPerform BODY VERIFICATION TEST - VER 1.Body Verification Test.