Climate Control

DTC Troubleshooting (cont'd)

21-129  

5-door

DTC 2: A Short in the In-car Temperature Sensor Circuit

  1. Remove the in-car temperature sensor (see page 21-149).
  2. Test the in-car temperature sensor (see page 21-150).

Is the resistance within the specifications shown on the graph?

YES - Go to step 3.

NO - Replace the in-car temperature sensor.

  1. Disconnect climate control unit connector B (22P).
  2. Check for continuity between the No. 9 terminal of the climate control unit connector B (22P) and body ground.

CLIMATE CONTROL UNIT CONNECTOR B (22P)

Wire side of female terminals

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.

5-door

DTC 3: An Open in the Outside Air Temperature Sensor Circuit

  1. Remove the outside air temperature sensor (see page 21-151).
  2. Measure the resistance between the No. 1 and No. 2 terminals of the outside air temperature sensor.

    *Dip the sensor in ice water and measure resistance. Then pour hot water on the sensor and check for change in resistance.

OUTSIDE AIR TEMPERATURE SENSOR

*Is the resistance within the specifications shown on the graph?

YES - Go to step 3.

NO - Replace the outside air temperature sensor.

  1. Disconnect climate control unit connector B (22P).