and Drivetrain/Relays and Modules - Differential/Control Unit/Service and Repair, and recheck. If the symptom/indication goes away with the
updated SH-AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good SH-AWD control unit,
replace the original SH-AWD control unit See: Powertrain Management/Transmission Control Systems/Relays and Modules - Transmission and
Drivetrain/Relays and Modules - Differential/Control Unit/Service and Repair.?
54
VSA DTC Troubleshooting: 54
DTC 54:
Fail-safe Relay Malfunction
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
1. Turn the ignition switch to LOCK (0).
2. Check the No. 12 (20 A) fuse in the main under-hood fuse box.
Is the fuse blown?
YES -
Go to step 3.
NO -
Reinstall the checked fuse, then go to step 5.
3. Disconnect the VSA modulator-control unit 46P connector.
4. Check for continuity between VSA modulator-control unit 46P connector terminal No. 44 and body ground.
Is there continuity?
YES -
Repair a short to body ground in the wire between the No. 12 (20 A) fuse in the main under-hood fuse box and the VSA modulator-control unit.?
NO -
Install a new No. 12 (20 A) fuse, then go to step 7.
5. Disconnect the VSA modulator-control unit 46P connector.
6. Measure the voltage between VSA modulator-control unit 46P connector terminal No. 44 and body ground.
