Manufacturer Code Charts: 8

DTC Troubleshooting: B1232 (8)

DTC B1232 or DTC indicator 8:

A Short in the Evaporator Temperature Sensor Circuit

1. Clear the DTC by turning the ignition switch to LOCK (0), and then turn to ON (II).

2. Operate the A/C control system in several modes.

3. Check for DTCs using the HDS How to Troubleshoot the Heating and A/C Systems or self-diagnostic function How to Troubleshoot the Heating and A/C Systems.

Is DTC B1232 or 8 indicated?

YES -

Go to step 4.

NO -

Intermittent failure.�

4. Turn the ignition switch to LOCK (0).

5. Remove the evaporator temperature sensor Service and Repair and test it Evaporator Temperature Sensor Test.

Does the evaporator temperature sensor test OK?

YES -

Go to step 6.

NO -

Replace the evaporator temperature sensor.�

6. Disconnect A/C control panel connector A (22P).

7. Check for continuity between A/C control panel connector A (22P) terminal No. 14 and body ground.





Is there continuity?

YES -

Repair a short to body ground in the wire between the A/C control panel and the evaporator temperature sensor.�

NO -

Go to step 8.

8. Check for continuity between A/C control panel connector A (22P) terminals No. 3 and No. 14.





Is there continuity?

YES -

Repair a short in the wires between the A/C control panel and the evaporator temperature sensor.�

NO -

Substitute a known-good A/C control panel, and recheck. If the symptom/indication goes away, replace the original A/C control panel A/C Control Panel Removal/Installation.�