No Response From DDM (Driver Door Module)

*NO RESPONSE FROM DDM (DRIVER DOOR MODULE)





For a complete wiring diagram Consult Diagrams/Electrical.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.

Turn the ignition on.

NOTE: Ensure fuse 36 is installed and not open and battery voltage is between 10.0 and 16.0 volts.

With the scan tool, select ECU View.

NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.

Does the scan tool display a red X next to the module?

Yes

- Go to 2

No

- The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.

2. REMOVE AND REINSTALL FUSE 36




Remove Fuse 36, wait 20 seconds and reinstall fuse.
Does the scan tool display a red X next to the module?

Yes

- Go to 3

No

- Test complete.
NOTE: Anytime the DDM C1 and C2 harness connectors are disconnected from the module the C2 harness connector MUST be connected before the C1 connector or a No Response condition may result.

- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

3. (A937) FUSED B(+) CIRCUIT OPEN OR SHORTED




Turn the ignition off.
Disconnect the Driver Door Module C1 harness connector.
Using a 12-volt test light connected to ground, check each (A937) Fused B(+) circuit.
Does the test light illuminate brightly for each circuit?

Yes

- Go to 4

No

- Repair the (A937) Fused B(+) circuit for an open or short.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

4. (Z908) GROUND CIRCUIT OPEN




Disconnect the Driver Door Module C2 harness connector.
Using a 12-volt test light connected to 12-volts, check each (Z908) ground circuit.
Does the test light illuminate brightly for each circuit?

Yes

- Go to 5

No

- Repair the (Z908) ground circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

5. (D55) AND (D54) CAN B BUS CIRCUITS OPEN




Turn the ignition on.

NOTE: One open circuit will not cause this condition.

Measure the voltage between the (D54) CAN B Bus (-) circuit and ground.
Measure the voltage between the (D55) CAN B Bus (+) circuit and ground.
Is there any voltage present on either circuit?

Yes

- Replace the Driver Door Module.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

No

- Repair the (D55) and (D54) CAN B Bus circuits for an open. Inspect the connector for damage.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.