Diesel Data: Automotive Repair

Compressor Circuit

Compressor Circuit

DESCRIPTION

The A/C amplifier outputs the magnetic clutch ON signal from terminal AC1 to the ECM receives this signal, it sends a signal from terminal ACMG (MGC) and switches the magnetic clutch relay ON, thus turning on the magnetic clutch.

Wiring Diagram:






Step 1:




Step 1 (Continued)-3:




Step 4-6:




Step 6 (Continued)-7:




Step 8:




Step 9-10:




Step 10 (Continued):




INSPECTION PROCEDURE