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

Relay Schematic

CONTINUITY

Relay Test-Continuity

1. Check that there is continuity between terminals 1 and 2.
2. Check that there is no continuity between terminals 3 and 4.
3. Check that there is no continuity between terminals 1 and 4.
4. If not as specified, replace relay.

Relay Test-Power On

OPERATION

1. Apply battery voltage to terminals 1 and 2.
2. Check that there is continuity between terminals 3 and 4.
3. If not as specified, replace relay.

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