Control Module HVAC: Testing and Inspection

TERMINALS OF ECU

1. CHECK AIR CONDITIONING AMPLIFIER ASSY (A/C CONTROL ASSY)

Terminals Of Control Module/Pinouts (Part 1)):

Terminals Of Control Module/Pinouts (Part 2):

Terminals Of Control Module/Pinouts (Part 3):

Terminals Of Control Module/Pinouts (Part 4):

a. Measure the voltage and resistance of the connectors. If the result is not as specified, the A/C amplifier may have a malfunction.

2. CHECK ECM

Terminals Of Control Module/Pinouts (Part 5):

Terminals Of Control Module/Pinouts (Part 6):

Oscilloscope Waveform:

a. Measure the voltage and resistance of the connectors. If the result is not as specified, the ECM may have a malfunction.