FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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P0122

Tests 119 - 123:




Tests 124 - 128:




SYMPTOM
P-0122 THROTTLE POSITION SENSOR VOLTAGE LOW

WHEN MONITORED
With the ignition on.

SET CONDITION
TP sensor voltage at PCM cavity 35 goes below 0.2 volt for 0.704 seconds.

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