DTC 49-1
DTC 49-1: SH-AWD Control Unit (PG Line Open)NOTE: Before you troubleshoot, review the general troubleshooting information.
1. Turn the ignition switch to ON (II).
2. Make sure the HDS communicates with the vehicle and the SH-AWD control unit. If it doesn't, troubleshoot the DLC circuit.
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. Turn the ignition switch to LOCK (0).
6. Disconnect SH-AWD control unit connector B (8P).
7. Check for continuity between SH-AWD control unit connector terminal B2 and body ground.
In there continuity?
YES - Update the SH-AWD control unit if it does not have the latest software, or substitute a known-good SH-AWD control unit 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.
NO - Repair open in the wire between SH-AWD control unit connector B and body ground or poor ground.