DTC B

DTC indicator B: A short in the in-car temperature sensor circuit

1. Remove the in-car temperature sensor.
2. Test the in-car temperature sensor.

Does the in-car temperature sensor test OK?

YES - Go to step 3.

NO - Replace the in-car temperature sensor

3. Disconnect climate control unit connector B (26P).




4. Check for continuity between the No.17 terminal of climate control unit connector B (26P) and body ground.

Is there continuity?

YES - Repair short to body ground in the wire between the climate control unit and the in-car temperature sensor.

NO - Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.