Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Has a problem been found?

	▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Signal Circuit Inspection" procedure.

IG "OFF".

Disconnect Instrument Cluster connector and TPMS ECU connector.

Measure resistance between speed signal terminal of Instrument Cluster harness connector and speed signal terminal of TPMS ECU harness connector.

Is the measured value within specifications?

	▶ Substitute with a known-good Cluster and check for proper operation. If problem is corrected, replace Cluster and then go to "Verification of Vehicle Repair" procedure.
	▶ Repair open in the speed signal circuit between TPMS ECU and Cluster, and then go to "Verification of Vehicle Repair" procedure.