Sunroof Module (SUNR)

B210D-BATTERY VOLTAGE LOW - SUNROOF

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 below 9.0 volts (motor operating or not). After this code is set, it becomes stored when the voltage exceeds 9.1 volts.





1. CHECK ENGINE DTCs

NOTE: Ensure the battery is fully charged before proceeding.

1. With the scan tool, read ENGINE DTCs

Are there any ENGINE BATTERY OR CHARGING SYSTEM DTCs present?

No

- Go to 2

Yes

- Go to and perform the appropriate diagnostic procedure.

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

Does the scan tool display BATTERY VOLTAGE LOW in the Sunroof module only?

Yes

- Go To 4

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the BODY VERIFICATION TEST. Body Verification Test

3. CHECK THE SUNROOF MOTOR/MODULE

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

1. Turn the ignition off.
2. Disconnect the Sunroof Motor/Module harness connector.

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

3. Test for an open or high resistance on the (A906) Fused B(+) circuit by connecting a 12-volt test light between the (A932) Fused B(+) circuit and the (Z919) 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 BODY VERIFICATION TEST. Body Verification Test

No

- Go To 4

4. CHECK (A906) FUSED B(+) AND (Z919) GROUND CIRCUITS FOR AN OPEN

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

1. Using a 12-volt test light connected to 12 volts, probe the (Z919) 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

- Repair the (A906) Fused B(+) circuit for an open or high resistance.
- Perform the BODY VERIFICATION TEST. Body Verification Test

No

- Repair the (Z919) Ground circuit for an open or high resistance.
- Perform the BODY VERIFICATION TEST. Body Verification Test