Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Isuzu Axiom Base, RWDFACTORY OEM SERVICE PROCEDURE
Engine Control System - Introduction
- Specifications
- Diagrams and Schematics
- On-Board Diagnostic (OBD-II)
- ISUZU Strategy Based Diagnostics
- Overview
- Diagnostic Thought Process
- Verify the Complaint
- Perform Preliminary Checks
- Check Bulletins and Troubleshooting Hints
- 4. Perform Service Information Diagnostic Checks
- Perform Service Information Diagnostic Procedures
- Technician Self Diagnoses
- Intermittent Diagnosis
- Vehicle Operates as Designed
- Re-examine The Complaint
- Repair and Verify Fix
- General Service Information
- On-Board Diagnostic (OBD-II) Information
- On-Board Diagnostic (Self Diagnosis System) Tests
- The Diagnostic Executive
- Verifying Vehicle Repair
- Reading Diagnostic Trouble Codes Using a Tech 2
- History DTCs
- Tech 2
- Tech 2 Features
- Getting Started
- Operating Procedure (Example)
- DTC Modes
- DTC Information Mode
- Miscellaneous Test
- Lamps Test
- Relays Test
- EVAP Test
- Idle Air Control System Test
- Fuel System Test
- Solenoid Test
- Instrument Test
- Ignition Spark Retard Test
- Plotting Snapshot Graph
- Plotting Graph Flow Chart (Plotting Graph after Obtaining Vehicle Information)
- Flow Chart for Snapshot Replay (Plotting Graph)
- Engine Tech 2 Data Definitions and Ranges
- Typical Scan Data Values
- Basic Diagnosis Procedure
- MIL/RPL Lamp Function Check
- No Malfunction Indicator Lamp (MIL)
- Malfunction Indicator Lamp (MIL) "ON" Steady
- No Reduced Power Lamp (RPL)
- Reduced Power Lamp (RPL) "ON" Steady
- On-Board Diagnostic (OBD-II) System Check
- Communication System Check
- Engine Control Module (ECM) Diagnosis
- Multiple ECM Information Sensor DTCs Set
- A/C Clutch Control Circuit Diagnosis
- Starter Control System Check
- Engine Cranks But Will Not Run
- Electric Throttle Control (ETC) System Check
- Knock Sensing System Check
- Fuel System Check (High Pressure Line)
- Fuel System Check (Low Pressure Line)
- Evaporative (EVAP) Emissions Canister Purge Valve Check
- Electronic Ignition System Diagnosis
- EVAP Canister Purge Solenoid and EVAP Vent Solenoid Valve
- Visual Check of the Evaporative Emission Canister
- Fuel Metering System Check
- Fuel System Check
- Fuel Injector Balance Test Procedure
- Variable Valve Timing System Check
- ISUZU Strategy Based Diagnostics
- ECM Diagnostic Trouble Codes
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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