LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2002 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Engine Control System Self-Diagnostics - 3.8L) >> Inspection/Maintenance Procedures >> Inspection/Maintenance System Check >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection/Maintenance System Check: Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 Pontiac Grand Prix, 2002 Pontiac Bonneville, 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, and 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS  under SELF-DIAGNOSTIC SYSTEM. If DTC or driveability problems were repaired using Diagnostic System Check - Engine Controls, go to step  3. If no DTC or driveability problems were repaired using Diagnostic System Check - Engine Controls, go to next step.
  2. Check for applicable Technical Service Bulletins (TSB) for software updates that may prevent Inspection/Maintenance (I/M) readiness. Perform any reprogramming or repairs indicated by TSBs. If reprogramming or repair service was required, see INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE . If reprogramming or repair service is not required, go to next step.
  3. Using scan tool, observe I/M SYSTEM STATUS display. If more than one test indicates a NO status, see INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE . If only one test indicates a NO status, go to appropriate I/M system set procedure for indicated system.