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.
Component Inspection
- Check ECM
- Ignition "ON" & Engine "OFF".
- Perform Key Teaching Procedure in "Reference Data" described in General Information .
- Is the Key teaching completed?
YES
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NOTE:- Don't forget to prepare for the PIN of the vehicle before removing ECM from the vehicle.
- Remember that substituting with a known-good ECM should be followed "The things to remember before replacement (ECM)".
(In case of faulty ECM, it has to be replaced with "VIRGIN" or "NEUTRAL" ECM.)
- Ensure that the correct PIN is entered when replacing a new ECM.
NO RELATED
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.