6702421

1.

Connect GDS with "DATA LINK CONNECTOR" (DLC).

2.

Warm engine up to normal operating temperature.

3.

Turn all the electrical devices including air conditioner OFF.

4.

Monitor "A/C ON SIGNAL SWITCH" and "A/C PRESSURE SENSOR" parameter on the GDS.

Specification : A/C switch "ON" : A/C RELAY "ON" (A/C compressor turns ON and OFF periodically by A/C pressure S/W. )

A/C switch "OFF" : A/C RELAY "OFF"

Fig.1) The operating condition of A/C relay is shown.

☞ Check if A/C compressor works properly when A/C switch is turning ON.

☞ Diagnosing problem of "A/C RELAY" and "A/C COMPRESSOR" is convenient through ACTUATION TEST on the GDS.