Driver Door Module (DDM), (DMFL)

B210C-16-BATTERY VOLTAGE INPUT - CIRCUIT VOLTAGE BELOW THRESHOLD







- When Monitored:
At all times.

- Set Condition:
Anytime the module senses voltage input below 8.0 volts for more than four seconds, this code will set.





1. CHECK ENGINE DTCs
1. With the scan tool, read the Powertrain Control Module DTCs

Are there any Charging or Battery DTCs present?

No

- Go To 2

Yes

- Testing and Inspection Perform the appropriate charging system or battery DTC diagnostic procedures.

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. With the scan tool, read the active DTCs in the Door Module.

Does the scan tool display B210C-16-BATTERY VOLTAGE INPUT - CIRCUIT VOLTAGE BELOW THRESHOLD?

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. (A215) FUSED B(+) OR (Z905) GROUND CIRCUITS RESISTED




1. Turn the ignition off.
2. Disconnect the Driver Door Module C3 connector.
3. Turn the ignition on.
4. Test the (A215) Fused B(+) circuits by connecting a 12-volt test light between the Fused B(+) circuit and the (Z905) Ground circuits in the door module C3 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 Driver Door Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Test the (A215) Fused B(+) and the (Z905) Ground circuits to determine which one has the high resistance. Repair the necessary circuit for high resistance.
- Perform the BODY VERIFICATION TEST. Body Verification Test.