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Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Engine Control System Self-Diagnostics - 5.7L) >> Diagnostic Tests >> DTC P0121: TP Sensor Performance >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

A skewed MAP sensor may cause this DTC to set. If the TP sensor is operating properly, and if this DTC continues to set, test the MAP sensor for proper operation.

The PCM 5-volt reference circuits are internally connected within the PCM. If all the TP sensor circuits are okay, inspect the MAP sensor for malfunctions.

If DTC P0121 is intermittent, see DTC P1121: TP SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE .

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