W/Harness Inspection

Ground Circuit inspection

NOTE: Check for open or short circuit in harness. Refer to "Signal Waveform & Data" in the "General Information" procedure.

1. Ignition "OFF"
2. Disconnect TPS connector
3. Measure resistance between terminal 2 of the sensor harness connector and chassis ground.

Specification : Approx. 0 Ohms




4. Is resistance within the specification ?






Signal Circuit Inspection

NOTE: Check for open or short circuit in harness. Refer to "Signal Waveform & Data" in the "General Information" procedure.

Check for short to battery in signal circuit
1. Disconnect ECM connector
2. Ignition "ON" & Engine "OFF"
3. Measure voltage between terminal 1 of the sensor harness connector and chassis ground

Specification : Approx. 0V




4. Is voltage within the specification ?





Check for open in signal circuit
1. Ignition "OFF"
2. Measure resistance between terminals 1 of the sensor harness connector and 41 of the ECM harness connector

Specification : Approx. 0 Ohms




3. Is resistance within the specification ?






Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found ?