Terminals of ecu (2005/11-2006/01)

1. Check air conditioning amplifier

1. Measure the voltage and resistance of the connectors.

Check from the rear of the connector while it is connected to the air conditioning amplifier.

2. Using an oscilloscope, check waveform 1.

Compressor and pulley operation signal

3. Using an oscilloscope, check waveform 2.

Blower motor control signal

When the blower level is increased, the duty ratio changes accordingly.

2. Using an oscilloscope, check waveform 3.

Can communication signal

The waveform varies depending on the can communication signal.

5. Using an oscilloscope, check waveform 4.

Can communication signal

The waveform varies depending on the can communication signal.

2. Check air conditioning control

1. Measure the voltage and resistance of the connectors.