Operation CHARM: Car repair manuals for everyone.

P0123

Test 1 - 2:




Test 3 - 7:




Test 8:






SYMPTOM
P0123-THROTTLE POSITION SENSOR # 1 VOLTAGE TOO HIGH

WHEN MONITORED
With the ignition on and battery voltage above 10.4 volts.

SET CONDITION
Throttle Position Sensor signal voltage at the PCM goes above 4.5 volts for 3.2 seconds.

POSSIBLE CAUSES
- TP sensor sweep
- Intermittent condition
- TP sensor
- (K22) TP sensor # 1 signal circuit shorted to voltage
- (K22) TP sensor # 1 signal circuit open
- (K22) TP sensor # 1 signal circuit shorted to (K7) 5 volt supply circuit
- (K4) sensor ground circuit open
- PCM