Pinout Values and Diagnostic Parameters

HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Hatchback): TERMINALS OF ECU

1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/ Cooler)





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









* *1: w/ PTC Heater

* *2: w/o Daytime Running Light System

* *3: w/ Daytime Running Light System

* If the result is not as specified, there may be a malfunction in the wire harness.

(a) Waveform 1 (Reference) : Using an oscilloscope





CAN Communication Signal





HINT
The waveform varies depending on the CAN communication signal.

(b) Waveform 2 (Reference) : Using an oscilloscope





CAN Communication Signal





HINT
The waveform varies depending on the CAN communication signal.

(c) Waveform 3: Using an oscilloscope





Compressor and Pulley Operation Signal





2. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/o Cooler)





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





* *1: w/ PTC Heater

* *2: w/o Daytime Running Light System

* *3: w/ Daytime Running Light System

* If the result is not as specified, there may be a malfunction in the wire harness.

(a) Waveform 1 (Reference) : Using an oscilloscope





CAN Communication Signal





HINT
The waveform varies depending on the CAN communication signal.

(b) Waveform 2 (Reference) : Using an oscilloscope





CAN Communication Signal





HINT
The waveform varies depending on the CAN communication signal.

3. CHECK COMBINATION METER ASSEMBLY





HINT
Check from the rear of the connector while it is connected to the combination meter assembly.





* If the result is not as specified, there may be a malfunction in the wire harness.