Sunroof Module (SUNR)

B210E-BATTERY VOLTAGE HIGH





For a complete wiring diagram, refer to the Wiring Information. Electrical Diagrams

- When Monitored:
At all times.

- Set Condition:
Anytime the module senses voltage input above 16 volts. This code will become stored when the voltage drops below 15.9 volts.





1. CHECK ENGINE DTCs
1. With the scan tool, read the ENGINE DTCs.

Are there any ENGINE Charging or Battery DTCs present?

No

- Go To 2

Yes

- Perform the appropriate diagnostic test procedure.
- For gas engine applications, Testing and Inspection.


2. TEST FOR INTERMITTENT CONDITION
1. With the scan tool, record and erase the DTCs.
2. Start the engine and run for two minutes.
3. Cycle the ignition from on to off three times.
4. Turn the ignition on.
5. With the scan tool, read the Sunroof DTCs.

Does the scan tool display B210D BATTERY VOLTAGE HIGH active?

Yes

- Go To 3.

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. (Z910) GROUND OPEN





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

1. Turn the ignition off.
2. Lower the headliner to gain access to the Sunroof Motor/Module connector.
3. Disconnect the Sunroof Motor/Module connector.

NOTE: Ensure the A-Pillar and all sunroof inline connectors are connected before proceeding.

4. Turn the ignition on.
5. Using a 12-volt test light connected to 12-volts, check the (Z910) Ground circuit in the Sunroof Motor/Module harness connector. The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

- Replace the Sunroof Motor/Module.
- Perform the Drive Motor Teach procedure. Programming and Relearning.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (Z910) Ground circuit for an open or high resistance.
- Perform the BODY VERIFICATION TEST. Body Verification Test.