Compressor Clutch: Testing and Inspection

COMPRESSOR CIRCUIT

CIRCUIT DESCRIPTION
The air conditioning amplifier outputs the magnetic clutch ON signal from the MPX terminal to the ECM which receives this signal. It then sends the signal from the ACMG terminal and switches the magnetic clutch relay on, thus turning on the magnetic clutch.

Wiring Diagram:

Step 1:

Step 2 - 3:

Step 4 - 5:

Step 6 - 8:

Step 9 - 10:

Step 11:

Step 12:

INSPECTION PROCEDURE

HINT: When using the hand-held tester, start inspection step 1 and when not using the hand-held tester, start from step 3.