DTC 44-31
DTC 44-31: SH-AWD Relay Stuck OFF1. Make sure the battery is fully changed and the charging system is working properly.
2. Turn the ignition switch OFF.
3. Check these fuse:
^ No. 22 (70 A) fuse in the under-hood fuse/relay box.
^ No. 1 (30 A) fuse in the passenger's under-hood fuse/relay box.
Are the fuses OK?
YES - Go to step 4.
NO - Repair short to ground in the wire between the fuse and the SH-AWD relay, then replace the fuse and recheck.
4. Clear the DTC with the HDS.
5. Start the engine.
6. Check for DTCs with the HDS.
Is DTC 44-31 indicated?
YES - Go to step 7.
NO - Intermittent failure, the system is OK at this time.
7. Turn the ignition switch OFF.
8. Test the SH-AWD relay.
Is the SH-AWD relay OK?
YES - Go to step 9.
NO - Replace the SH-AWD relay.
9. Disconnect SH-AWD control unit connector B (8P).
10. Check for continuity between SH-AWD relay 4P connector terminal No. 1 and SH-AWD control unit connector terminal B1.
Is there continuity?
YES - Go to step 11.
NO - Repair an open in the wire between SH-AWD control unit connector A and the SH-AWD relay.
11. Check for continuity between SH-AWD relay 4P connector terminal No. 3 and SH-AWD control unit connector terminal A3.
Is there continuity?
YES - Go to step 12.
NO - Repair open in the wire between SH-AWD control unit connector A and the SH-AWD relay.
12. Check for continuity between SH-AWD relay 4P connector terminal No. 4 and body ground.
Is there continuity?
YES - Go to step 13.
NO - Repair open in the wire between SH-AWD relay and body ground.
13. Measure voltage between SH-AWD relay 4P connector terminal No. 2 and body ground.
Is there battery voltage?
YES - Check for loose connector terminals at the SH-AWD control unit. If the connections are OK, substitute a known-good SH-AWD control unit and recheck.
NO - Repair open in the wire between the No. 1 fuse in the auxiliary under-hood fuse box and the SH-AWD relay.