41-2

SH-AWD DTC Troubleshooting: 41-2

DTC 41-2: F-CAN Malfunction (Lost Communication with VSA Modulator-Control Unit)

NOTE: Before you troubleshoot, review the general troubleshooting information. Initial Inspection and Diagnostic Overview

1. Turn the ignition switch to ON (II).

2. Check for DTCs in the VSA system with the HDS.

Are there any DTCs indicated?
YES - Go to the indicated DTC's troubleshooting.

NO - Go to step 3.


3. Clear the DTC with the HDS.

4. Start the engine.

5. Check for DTCs with the HDS.

Is DTC 41-2 indicated?
YES - Go to step 6.

NO - Intermittent failure, the system is OK at this time. Check for intermittent open between SH-AWD control unit connector terminals A10 and A11 and VSA modulator-control unit 47P connector terminals No. 14 and No. 30.


6. Turn the ignition switch to LOCK (0).

7. Disconnect the VSA modulator-control unit 47P connector.

8. Disconnect SH-AWD control unit connector A (26P).

9. Check for continuity between VSA modulator-control unit 47P connector terminals No. 14, No. 30 and SH-AWD control unit connector terminals A10, A11 individually.

Is there continuity?
YES - Substitute a known-good SH-AWD control unit Service and Repair and recheck. If the symptom/indication goes away with the known-good SH-AWD control unit, replace the original SH-AWD control unit. Service and Repair

NO - Repair an open in the wires between the SH-AWD control unit and the VSA modulator-control unit.