FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

A/C Signal




CIRCUIT DIAGRAM









USING MULTI-USE TESTER

Step 1:




HARNESS INSPECTION



OPERATION

If the ON signal is input from the air conditioner switch, ECU turns on the air conditioner compressor relay to start the air conditioner compressor.



TROUBLESHOOTING HINTS

When idling speed does not increase for the air conditioner or when the air conditioner compressor does not run, a short-circuit or broken wire may occur in the circuit related to the air conditioner.