W/Harness Inspection

Power Supply Circuit Inspection

CAUTION:
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. Ignition "ON" & Engine "OFF"
4. Measure voltage between terminal 3 of the sensor harness connector and chassis ground
A. Specification : Approx. 5V




5. Is voltage within the specification?
YES
1) Go to next step as below
NO
1) Possibility of open or short to ground in 5V reference circuit. Repair as necessary and go to "Verification of Vehicle Repair" procedure

Signal Circuit Inspection

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

1. Measure voltage between terminal 1 of the sensor harness connector and chassis ground
A. Specification : Approx. 5V




2. Is voltage within the specification?
YES
1) Go to next step as below
NO
1) Check the short to ground in signal circuit.
2) Repair as necessary and go to "Verification of Vehicle Repair" procedure

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?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Go to next step "Component Inspection" procedure.