P0123

Tests 1 - 2:

Tests 3 - 6:

Tests 7 - 10:

SYMPTOM
P0123 THROTTLE POSITION SENSOR VOLTAGE HIGH

WHEN MONITORED
With the ignition ON.

SET CONDITION
TP sensor signal voltage goes above 4.5 volts for 0.704 seconds.

POSSIBLE CAUSES
- Throttle position sensor ground circuit open
- Throttle position sensor signal circuit open
- TPS signal circuit to TPS 5 Volt supply circuit shorted
- TPS wiring harness intermittent defect
- TPS wiring harness observable defect
- Powertrain control module defective (TPS)
- Throttle position sensor voltage below 1.0 Volt
- Throttle position sensor voltage change not smooth