Operation CHARM: Car repair manuals for everyone.

P0122

Tests 1 - 2:




Tests 3 - 7:




Tests 8 - 10:




SYMPTOM
P0122 - THROTTLE POSITION SENSOR VOLTAGE LOW

WHEN MONITORED
With the ignition ON.

SET CONDITION
The TP sensor signal voltage goes below 0.16 volt.

POSSIBLE CAUSES
- TPS 5-Volt supply circuit open
- TPS signal circuit short to ground
- TPS signal circuit short to sensor ground circuit
- TPS wiring harness intermittent defect
- TPS wiring harness observable defect
- PCM defective (TPS)
- Throttle position sensor defective
- Throttle position sensor Voltage change not smooth
- Transmission control module defective (TPS)