Repair/Front Evaporator Temperature Sensor Replacement.?
7. Disconnect climate control unit connector A (40P).
8. Check for continuity between climate control unit connector A (40P) terminal No. 24 and body ground.
Is there continuity?
YES -
Repair a short to body ground in the wire between the climate control unit and the front evaporator temperature sensor.?
NO -
Go to step 9.
9. Check for continuity between climate control unit connector A (40P) terminals No. 8 and No. 24.
Is there continuity?
YES -
Repair a short in the wires between the climate control unit and the front evaporator temperature sensor.?
NO -
Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit See:
Heating and Air Conditioning/Control Assembly/Service and Repair/Climate Control Unit Removal/Installation.?
B1233
DTC Troubleshooting: B1233 (J and AUTO)
DTC B1233 or DTC indicator J and AUTO:
An Open in the Driver's Air Mix Control Motor Circuit
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Do the self-diagnostic function with the HDS or the climate control unit.
4. Check for DTCs.
Is DTC B1233 or J and AUTO indicated?
