Operation CHARM: Car repair manuals for everyone.

Engine Code

Test 1 - 3:




Test 4 - 8:




Test 9 - 10:






SYMPTOM
P0122-THROTTLE POSITION SENSOR #1 VOLTAGE TOO LOW

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

SET CONDITION
Throttle Position Sensor voltage at the PCM is lower than 0.1 of a volt for 1.3 seconds.

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