FixVault
Home
›
Chevrolet
›
2003
›
Impala LS
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Control System Self-Diagnostics - 3.8L
›
Diagnostic Tests
›
DTC P0121: TP Sensor Performance
›
Diagnostic Procedures
Diagnostic Procedures
NOTE:
If any other DTCs are set, diagnose those DTCs first.
Fig 1: DTC P0121: TP Sensor Performance (Steps 1-7)
Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0121: TP Sensor Performance (Steps 8-15)
Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P0121: TP Sensor Performance (Steps 16-25)
Courtesy of GENERAL MOTORS CORP.