Throttle Position Sensor: 1.0L
CAUTION:
DO NOT use throttle stop screw to adjust TP sensor.
A malfunction in TP sensor circuit can set DTC P0121, P0122 or P0123. For test procedure with DTC set, see appropriate SELF-DIAGNOSTICS article. Use the following procedure to diagnose TP sensor.
- Insert a .14" (3.5 mm) feeler gauge between throttle stop screw and throttle lever. See Fig 1. Check Idle Speed Control (ISC) motor plunger for contact with throttle lever screw. If ISC motor plunger is contacting throttle lever screw, engine must be brought to normal operating temperature.
- Install scan tool. Turn ignition on. Using scan tool, read TP sensor voltage parameter. Voltage reading should be .2-1.0 volt. If voltage is not .2-1.0 volt, adjust TP sensor. Loosen TP sensor mounting screws and turn TP sensor until voltage is as specified. Replace TP sensor if not adjustable.