49-1

SH-AWD DTC Troubleshooting: 49-1

DTC 49-1: SH-AWD Control Unit (PG Line Open)

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

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

2. Make sure the HDS communicates with vehicle and the SH-AWD control unit. If it doesn't, troubleshoot the DLC circuit. Testing and Inspection

3. Clear the DTC with the HDS.

4. Check for DTCs with the HDS.

Is DTC 49-1 indicated?
YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time.


5. Measure voltage between SH-AWD control unit connector terminal B2 and body ground.

Is there less than 0.5 V?
YES - Update the SH-AWD control unit if it does not have the latest software, SH-AWD Control Unit Update or substitute a known-good SH-AWD 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. Service and Repair

NO - Repair open in the wire between SH-AWD control unit connector B and body ground or poor ground (G603).