Cavalier L4-2.2L VIN 4 (1998)
Throttle Position Sensor: Testing and Inspection
When the PCM detects a malfunction with the Throttle Position (TP) sensor circuits, the following Diagnostic Trouble Code (DTC)s will set:
^
DTC P0121 circuit performance.
^
DTC P0122 circuit low.
^
DTC P0123 circuit high.
Refer to System Diagnosis / Diagnostic Tables for testing information. See: Computers and Control Systems/Testing and Inspection
