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Home >> Pontiac >> 2001 >> Firebird Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0403: EGR Control Circuit Malfunction >> Description

DTC P0403: EGR Control Circuit Malfunction: Description

Powertrain Control Module (PCM) monitors Exhaust Gas Recirculation (EGR) valve pintle position input to ensure valve responds properly to commands from PCM. Linear EGR valve is controlled using ignition positive driver and ground circuit within PCM. Driver can detect an electrical malfunction in ignition positive or ground circuit.

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