Disconnect the MAPS and PCM/ECM 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 MAPS 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 "Signal Circuit Inspection" procedure.

IG "OFF".

Disconnect MAPS connector.

IG "ON" & ENG "OFF"

Measure the voltage between signal terminal of the MAPS harness connector and chassis ground.

Is the measured voltage within specification ?

	▶ Go to next step as below.
	▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.

IG "OFF".

Disconnect MAPS connector.

Measure the resistance between ground terminal of MAPS harness connector and chassis ground.

Is the measured resistance within specification ?

	▶ Go to next step as below.
	▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.