P0123

Tests 1 - 2:

Tests 3 - 7:

Tests 8 - 10:

SYMPTOM
P0123 - THROTTLE POSITION SENSOR VOLTAGE HIGH

WHEN MONITORED
With the ignition ON.

SET CONDITION
TP sensor voltage at PCM cavity 35 goes above 4.5 volts for 0.704 seconds.

POSSIBLE CAUSES
- TPS ground circuit open
- TPS wiring harness intermittent defect
- TPS wiring harness observable defect
- TPS signal circuit shorted to voltage
- TPS voltage below 1.0 volt
- TPS voltage change not smooth
- TPS signal circuit open
- TPS signal circuit shorted to 5 volt supply circuit
- PCM defective (TPS)