2007 Compass Patriot MK Factory Service Manual 8 - ELECTRICAL

*NO RESPONSE FROM ALL WHEEL DRIVE CONTROL (AWD) MODULE

For a complete wiring diagram Refer to Section 8W.

Possible Causes

(F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED

(A923) FUSED B(+) CIRCUIT OPEN OR SHORTED

(Z967) GROUND CIRCUIT OPEN

(D65) CAN C BUS (+) CIRCUIT OPEN

(D64) CAN C BUS (-) CIRCUIT OPEN

ALL WHEEL DRIVE CONTROL (AWD) MODULE

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 the IOD fuse is installed 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.

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. (F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED

Turn the ignition off.
Disconnect the AWD harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the (F202) Ignition Switch Output (Run-Start) circuit.

Does the test light illuminate brightly?

Yes

Go To 3

No

Repair the (F202) Ignition Switch Output (Run-Start) circuit for an open or short.
Perform the appropriate VERIFICATION TEST.

3. (A923) FUSED B(+) CIRCUIT OPEN OR SHORTED

Using a 12-volt test light connected to ground, check the (A923) Fused B+ circuit.

Does the test light illuminate brightly?

Yes

Go To 4

No

Repair the (A923) Fused B+ circuit for an open or short.
Perform the appropriate VERIFICATION TEST.

4. (Z967) GROUND CIRCUIT OPEN

Turn the ignition off.
Using a 12-volt test light connected to 12-volts, check the (Z967) ground circuit.

Does the test light illuminate brightly?

Yes

Go To 5

No

Repair the (Z967) ground circuit for an open.
Perform the appropriate VERIFICATION TEST.

5. (D65) CAN C BUS (+) CIRCUIT OPEN

Disconnect the TIPM C3 harness connector.
Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C3 harness connector and the AWD harness connector.

Is the resistance below 5.0 ohms?

Yes

Go To 6

No

Repair the (D65) CAN C Bus (+) circuit for an open.
Perform the appropriate VERIFICATION TEST.

6. (D64) CAN C BUS (-) CIRCUIT OPEN

Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C3 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 in accordance with the service information.
Perform the appropriate VERIFICATION TEST.

No

Repair the (D64) CAN C Bus (-) circuit for an open.
Perform the appropriate VERIFICATION TEST.