Operation CHARM: Car repair manuals for everyone.

Engine Code

Test 1 - 2:




Test 3 - 7:




Test 8:






SYMPTOM
P0123-THROTTLE POSITION SENSOR #1 HIGH

WHEN MONITORED
With the ignition on. Battery voltage greater than 10 volts.

SET CONDITION
Throttle Position Sensor voltage at the PCM is greater than 4.5 volts for 0.7 of a second. One Trip Fault.

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