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
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Alarm & Relay Control Unit | On right side of dash. See Figure . |
| Electronic Hydraulic Control Unit (EHCU) | Right rear corner of engine compartment. See Figure . |
| Engine Control Module (ECM) | Left side of engine compartment. See Figure . |
| Fuel Pump Controller | Near left rear frame rail. See Figure . |
| GPS Receiver Unit | Top center of dash. See Figure . |
| Immobilizer Control Unit | In right side of steering column. See Figure . |
| Intelligent Suspension Control Unit | Below center of dash. See Figure . |
| Keyless Entry & Anti-Theft Control Unit | On right side of dash, behind glove box. See Figure . |
| MID Control Unit | Behind center of dash. See Figure . |
| Sensing & Diagnostic Module (SDM) | Under front of center console. See Figure . |
| Shift-On-The-Fly Controller | Behind the radio. See Figure . |
| Sunroof Control Unit | Center front of roof. See Figure . |
| TOD Control Unit | Below left side of dash. See Figure . |
| Transmission Control Module (TCM) | Below left side of I/P. See Figure . |
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.