Driver Door Module (DDM)

B210D-BATTERY VOLTAGE LOW





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

- When Monitored:
Continuously

- Set Condition:
If the Driver Door Module senses voltage is less than 8.5 volts on the (A931) Fused B(+) circuit.





1. CHECK FOR ENGINE DTCs
1. Turn the ignition on.
2. With the scan tool, read Engine DTCs.

Does the scan tool display any CHARGING SYSTEM or BATTERY VOLTAGE LOW related DTCs?

Yes

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

No

- Go To 2

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 active DTCs.

Does the scan tool display: B210D BATTERY VOLTAGE LOW?

Yes

- Go To 3

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 FOR POWER ON THE (A931) FUSED B(+) CIRCUIT AT THE DRIVER DOOR MODULE




1. Turn the ignition off.
2. Disconnect the Driver Door Module C1 connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the (A931) Fused B(+) circuit.

Does the test light illuminate brightly?

Yes

- Go To 4

No

- Repair the (A931) Fused B(+) circuit for an open or short.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. CHECK THE (Z--) GROUND CIRCUITS FOR AN OPEN




1. Using a 12-volt test light connected to 12-volts, check the (Z---) ground circuit in the Driver Door Module C1 connector.

Does the test light illuminate brightly?

Yes

- Replace the Driver Door Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (Z---) ground circuit(s) for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.