W/Harness Inspection

P0121 Throttle/Pedal Position Sensor/Switch \'A\' Circuit Range/Performance

Inspection/Repair - W/Harness Inspection

Air Leakage Inspection

1. Visually/physically inspect the following items:
- Vacuum hoses for splits, kinks and improper connections.
- EVAP system for leakage
- PCV hose for proper installation
2. Was a problem found in any of the above areas?






Terminal and Connector Inspection

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

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?