DTC Troubleshooting: S

DTC indicator S: A Short in the A/C Pressure Sensor Circuit

1. Disconnect the A/C pressure sensor 3P connector.

1. Disconnect climate control unit connector B (16P).

1. Check for continuity between the No. 2 terminal of the A/C pressure sensor 3P connector and body ground.

Is there continuity?

YES | - | Repair short to body ground in the wire between the climate control unit and the A/C pressure sensor.■
NO | - | Go to Step 4 .

1. Reconnect climate control unit connector B (16P).

1. Turn the ignition switch ON (II).

1. Measure the voltage between the No. 1 and No. 3 terminals of the A/C pressure sensor 3P connector.There should be 5 V.

Is the voltage as specification?

YES | - | Replace the A/C pressure sensor.■
NO | - | Go to Step 7 .

1. Turn the ignition switch OFF.

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

1. Check for continuity between the No. 20 terminal of climate control unit connector A (22P) and body ground.

Is there continuity?

YES | - | Repair short to body ground in the wire between the climate control unit and the A/C pressure sensor.■
NO | - | Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit .■