toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Compressor Speed Sensor, HVAC > < Compressor Clutch Relay|Locations
Page 1
background image

Compressor Clutch Relay: Testing and Inspection

A/C Clutch Relay Testing

CONTINUITY

1.

Check that there is continuity between terminals 1 and 2, and between terminals 1 and 4.

2.

Check that there is no continuity between terminals 1 and 3.

3.

If not as specified, replace relay.

OPERATION

1.

Apply battery voltage to terminals 1 and 2.

2.

Check that there is continuity between terminals 1 and 3.

3.

Check that there is no continuity between terminals 1 and 4.

4.

If not as specified, replace relay.

Compressor Speed Sensor, HVAC > < Compressor Clutch Relay|Locations