LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2005 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Controls - 3.8L - Introduction) >> Description and Operation >> Powertrain Control Module (PCM) Description >> Emissions Diagnosis For State I/M Programs
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Emissions Diagnosis For State I/M Programs

WARNING: This page is about a different variant/trim than selected.

This OBD II equipped vehicle is designed to diagnose any conditions that could lead to excessive levels of the following emissions:

Should this vehicles on-board diagnostic system, powertrain control module (PCM), detect a condition that could result in excessive emissions, the PCM turns ON the malfunction indicator lamp (MIL) and stores a DTC that is associated with the condition.