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.
Fault Code Testing: Notes
This section covers fault codes dealing with ignition system ECU testing. Codes will be followed by an explanation of how to test and repair affected circuit. See IGNITION SYSTEM ECU LOCATION table.
| Application | Location |
|---|---|
| 240 | Behind Glove Box |
| 740/940 | Under Instrument Panel, Next To Gas Pedal |
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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