Diagnostic Procedure

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DTC P0120: TP Sensor Circuit (Steps 1-6)

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Fig 2: DTC P0120: TP Sensor Circuit (Steps 7-15)

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Fig 3: DTC P0120: TP Sensor Circuit (Steps 16-24)

Courtesy of GENERAL MOTORS CORP.

Fig 4: DTC P0120: TP Sensor Circuit (Steps 25-33)

Courtesy of GENERAL MOTORS CORP.