No Response From All Wheel Drive Control Module (AWD)

NO RESPONSE FROM ALL WHEEL DRIVE CONTROL (AWD) MODULE












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.

1. Turn the ignition on.

NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.

2. 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.

NOTE: Check the TIPM for any active CAN C hardware DTC's, perform DTC before proceeding.

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. (F943) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED




1. Turn the ignition off.
2. Disconnect the AWD harness connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the (F943) Fused Ignition Switch Output (Run-Start) circuit.

Does the test light illuminate brightly?

Yes

- Go To 3

No

- Repair the (F943) Fused Ignition Switch Output (Run-Start) circuit for an open or short.
- Perform the appropriate VERIFICATION TEST. Verification Tests

3. (A104) FUSED B(+) CIRCUIT OPEN OR SHORTED




1. Using a 12-volt test light connected to ground, check the (A104) Fused B+ circuit.

Does the test light illuminate brightly?

Yes

- Go To 4

No

- Repair the (A104) Fused B+ circuit for an open or short.
- Perform the appropriate VERIFICATION TEST. Verification Tests

4. (Z908) GROUND CIRCUIT OPEN




1. Turn the ignition off.
2. Using a 12-volt test light connected to 12-volts, check the (Z908) ground circuit.

Does the test light illuminate brightly?

Yes

- Go To 5

No

- Repair the (Z908) ground circuit for an open.
- Perform the appropriate VERIFICATION TEST. Verification Tests

5. (D52) CAN C BUS (+) CIRCUIT OPEN




1. Disconnect the TIPM C7 harness connector.
2. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the AWD harness connector.

Is the resistance below 5.0 ohms?

Yes

- Go To 6

No

- Repair the (D52) CAN C Bus (+) circuit for an open.
- Perform the appropriate VERIFICATION TEST. Verification Tests

6. (D51) CAN C BUS (-) CIRCUIT OPEN




1. Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the AWD harness connector.

Is the resistance below 5.0 ohms?

Yes

- Replace and program the All Wheel Drive Control (AWD) Module.
- Perform the appropriate VERIFICATION TEST. Verification Tests

No

- Repair the (D51) CAN C Bus (-) circuit for an open.
- Perform the appropriate VERIFICATION TEST. Verification Tests