Powertrain Diagnostic Procedures - Introduction

• DTC Index
• Introduction
  • Notes
  • System Coverage
  • Six-Step Troubleshooting Procedure
• Identification Of System
• System Description And Functional Operation
  • General Description
  • Functional Operation
    • Fuel Control
    • On-Board Diagnostics
      • Notes
      • OBDII Monitor Run Process NGC Vehicle
      • A. Natural Vacuum Leak Detection With Purge Monitor
      • B. Catalyst/02 Monitor
      • C. EGR Monitor
      • D. 02 Sensor Heater Monitor
    • Other Controls
      • Charging System (NGC)
      • 02 Sensor (NGC)
      • Speed Control System
      • Turbocharger System 2.4L (NGC)
      • Natural Vacuum Leak Detection (NVLD) (NGC)
      • The NVLD Utilizes The Gas Law Principles
      • The NVLD Device And How It Functions
      • The PCM'S Role In NVLD Diagnosis:
      • NVLD Leak Detection
        • Small Leak Test (Passive)
        • Rationality Tests
        • Medium and Large Leak Test (Intrusive)
    • Pcm Operating Modes
    • Non-Monitored Circuits
    • Skis Overview
    • Skim On-Board Diagnostics
    • Skis Operation
    • Programming The Powertrain Control Module
    • Programming The Sentry Key Immobilizer Module
    • Programming The Ignition Keys To The Sentry Key Immobilizer Module
  • Diagnostic Trouble Codes
    • Notes
    • Hard Code
    • Intermittent Code
    • Starts Since Set Counter
    • Distance Since Mi Set
  • Using The DRBIII®
  • DRBIII® Error Messages And Blank Screen
    • Notes
    • DRBIII® Does Not Power Up
    • Display Is Not Visible
• Disclaimers, Safety, Warnings
  • Disclaimers
  • Safety
    • Technician Safety Information
    • Vehicle Preparation For Testing
    • Servicing Sub Assemblies
    • DRBIII® Safety Information
  • Warnings And Cautions
    • Road Test Warnings
    • Vehicle Damage Cautions
• Required Tools And Equipment
• Glossary Of Terms
• Diagnostic Information And Procedures
  • Communication - Symptoms
    • Symptom: *NO RESPONSE FROM PCM (PCI BUS) - 1.6L
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *NO RESPONSE FROM PCM (PCI BUS) - NGC
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *NO RESPONSE FROM PCM (PCM SCI ONLY) - NGC
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *NO RESPONSE FROM PCM (SCI ONLY) - 1.6L
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *NO RESPONSE FROM SENTRY KEY IMMOBILIZER MODULE
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *NO RESPONSE FROM TRANSMISSION CONTROL MODULE - NGC
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *PCI BUS COMMUNICATION FAILURE
      • Possible Causes
      • Diagnostic Procedure