W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminal condition.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
3. Has a problem been found?
YES
1) Repair if necessary and then go to "Verification of Vehicle Repair" procedure.
NO
1) Go to "Control Circuit Inspection" procedure.

Control Circuit Inspection

1. Engine "OFF".
2. Connect TPMS receiver connector.
3. Engine "ON".
4. Measure waveform between terminal "5" of TPMS receiver harness connector and chassis ground by using a oscilloscope.




5. Is the measured waveform within specifications?
YES
1) Substitute with a known-good TPMS receiver and check for proper operation.
2) If the problem is corrected, replace TPMS receiver and then go to "Verification of Vehicle Repair" procedure.
NO
1) Check for short to power in supply harness.
2) Repair if necessary and then go to "Verification of Vehicle Repair" procedure.