DTC B

DTC indicator light B: A Short in the In-car Temperature Sensor Circuit

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

Is the resistance within the specifications shown on the graph?

YES - Go to step 3.

NO - Replace the in-car temperature sensor.

3. Disconnect climate control unit connector B (30P).




4. Check for continuity between the No. 18 terminal of climate control unit connector B (30P) 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.