Diagnostic Test
- 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 Step 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.
- Turn the ignition on.
- 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 Step 3
No
- Test complete.
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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.
- Remove Fuse 36, wait 20 seconds and reinstall fuse.
- (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 Step 4
No
- Repair the (A937) Fused B(+) circuit for an open or short.
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- (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 Step 5
No
- Repair the (Z908) ground circuit for an open.
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- (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 in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Repair the (D55) and (D54) CAN B Bus circuits for an open. Inspect the connector for damage.
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- Turn the ignition on.