Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

CHECK COMPRESSOR LOCK SENSOR
1. Disconnect the A5 compressor connector.
2. Measure the resistance between terminals 1 and 2 of the compressor lock sensor connector.
  Standard resistance: 65 to 125 Ω at 20°C (68°F)
NG: REPLACE COMPRESSOR

Fig 1: Measuring Resistance Between Terminals 1 & 2 Of Compressor Lock Sensor Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO NEXT STEP
CHECK WIRE HARNESS (AIR CONDITIONING AMPLIFIER - COMPRESSOR LOCK SENSOR)
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: GO TO NEXT STEP
CHECK WIRE HARNESS (COMPRESSOR LOCK SENSOR - BODY GROUND)
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE AIR CONDITIONING AMPLIFIER