A/C Signal: Testing and Inspection

A/C Control Circuits:

SCAN TOOL TESTING
A scan tool can be used to display the following parameters:

1. A/C Request This displays if PCM has received the A/C request from Instrument Panel Cluster (IPC) "YES or "NO."
2. A/C Clutch - This displays if the PCM has commanded the A/C clutch "ON" or "OFF."
3. A/C Highside - This displays the A/C refrigerant highside pressure in VOLTS and PSI.

Refer to Chart C-10 A/C Clutch Control Circuit for specific wiring, circuit and calibration description. Testing and Inspection