2003 Isuzu Axiom Base, RWDFACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS LOCATION

Component Component Location
Alarm & Relay Control Unit On right side of dash.
Audio A/C Control Unit Behind center of control unit.
Electronic Hydraulic Control Unit (EHCU) Right rear corner of engine compartment. See Figure .
GPS Receiver Unit Top center of dash.
Immobilizer Control Unit In right side of steering column.
Intelligent Suspension Control Unit Below center of dash.
ION Sensing Module On top of intake manifold. See Figure .
Keyless Entry & Anti-Theft Control Unit On right side of dash, behind glove box.
MID Control Unit Behind center of dash.
Multi-Plexed Indicator Control Unit Under rear of center console. See Figure .
Powertrain Control Module (PCM) Left side of engine compartment. See Figure .
Sensing & Diagnostic Module (SDM) Under front of center console.
Shift Lock Controller Under center console.
Shift-On-The-Fly Controller Behind the radio.
Sun Roof Control Unit/Motor Center front of roof.
TOD Control Unit Below left side of dash. See Figure .
Factory Service Tools

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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.