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Code 22 - Compressor Lock Sensor Circuit

NOTE: If installing new belt, set belt tension in range "B" on tensioner scale. See Fig 1.
  1. Reinstall drive belt, and ensure it fits properly on compressor pulley. If tension is not in range "A" on scale, replace belt. See Fig 1. If tension is okay, go to next step.
  2. Start engine. Turn blower and A/C on. Observe compressor. If compressor locks during operation, repair compressor. If compressor does not lock during operation, test compressor lock sensor. See COMPRESSOR LOCK SENSOR  under TESTING. Replace sensor as necessary.
  3. If compressor lock sensor is okay, inspect wiring harness and connectors between sensor and A/C-heater control assembly. Repair as necessary. If wiring harness and connectors are okay, temporarily substitute known-good A/C-heater control assembly. Retest system.
Fig 1: Checking Compressor Drive Belt Tension
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