Tacoma 4WD V6-4.0L (1GR-FE) (2006)
c. Check the air conditioning operation.
1. Disconnect the pressure switch connector.
2. Connect terminals 1 and 2 of the pressure switch connector on the vehicle wire harness side using a service wire.
3. Start the engine.
4. Turn the air conditioning switch on and check that the magnet clutch is turned on.
5. Check that the magnet clutch is turned off when disconnecting terminals 1 and 2 (that are connected in the prior step).
Standard:
Terminals 1 and 2 connected: Magnet clutch is ON
Terminals 1 and 2 disconnected: Magnet clutch is OFF
Replace the pressure switch if the magnet clutch operates normally.
Inspect and repair the wire harness between the pressure switch and the ECM.