Disconnect the ECTS 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 ECTS 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 ECTS connector and PCM/ECM connector.

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

Is the resistance within the specification?

	▶ Go to "Component Inspection" procedure.
	▶ Repair short to ground in harness and go to "Verification of Vehicle Repair" procedure.