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.
Control Units
/relay block. See Figure. Engine Control Module (ECM) Right front footwell (under carpet). See Figure. Ignition Control Module (ICM) Inside distributor. See Figure. Integrated Control Unit On rear of passenger compartment fuse/relay block. See Figure. Interlock Control Unit (A/T) Behind center of dash. Power Door Lock Control Unit Under left side of dash, left of steering column. See Figure. Power Window Control Unit Integral with driver's power window switch. See Figure. Radiator Fan Control Module Behind center of dash, on right side of heater assembly. See Figure. Security Control Unit Below glove box. Transmission Ctrl Module (TCM) Left side of dash, above fuse/relay box. See Figure.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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