Disconnect the A/C Pressure Sensor and PCM connectors and inspect for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Reconnect the connectors.

Connect the GDS and go to ""Current Data"".

Monitor A/C Pressure Sensor values in Current Data, check and wiggle the harness(es), connector(s), and terminal(s).

Any change in the values indicates a poor connection. Was a connector problem found?

	▶ Repair the connector. Go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Power Circuit Inspection" procedure.

IG "OFF". Disconnect the A/C pressure sensor connector.

IG "ON"

Measure the voltage between power terminal of A/C pressure sensor harness connector and chassis ground.

Is the measured voltage within specification ?

	▶ Go to "Signal Circuit Inspection" procedure.
	▶ Repair open or short to ground in harness. Go to "Verification of Vehicle Repair" procedure.

IG "OFF". Disconnect A/C pressure sensor and PCM connector.

Measure the resistance between signal terminal of A/C pressure sensor harness connector and chassis ground.

Is the measured resistance within specification?

	▶ Go to "Check open in harness" as follows.
	▶ Repair short to ground in harness. Go to "Verification of Vehicle Repair" procedure.

IG "OFF". Disconnect A/C pressure sensor and PCM connector.

Measure the resistance between signal terminal of A/C pressure sensor harness connector and A/C pressure sensor signal terminal of PCM harness connector.

Is the measured resistance within specification?

	▶ Go to "Component inspection" procedure.
	▶ Repair open in harness. Go to "Verification of Vehicle Repair" procedure.