Air Conditioning System (For Manual Air Conditioning System)

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air Conditioning System): TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK AIR CONDITIONING AMPLIFIER

(a) Measure the voltage and resistance of the connectors.
HINT: Check from the rear of the connector while it is connected to the air conditioning amplifier.

HINT: *: for 2GR-FE

(b) Using an oscilloscope, check waveform 1.

HINT: The waveform varies depending on the CAN communication signal.

(d) Using an oscilloscope, check waveform 3.

HINT: *: Compressor and pulley for 2AZ-FE, compressor and magnetic clutch for 2GR-FE

(e) Using an oscilloscope, check waveform 4.

HINT: *: for 2GR-FE