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.
Testing Procedure
To carry out tests when 40 way connector is connected to the Engine Control Module (ECM), it is necessary to remove the two screws securing the shroud to the connector to enable the multi-meter probes to be inserted into the back of the appropriate pin.
- Release harness connector from ECM. Access is gained by removing front seat base trim of front right hand seat. Remove connector shroud and maneuver it along harness to enable meter probes to be inserted into back of connector.
- Only pin numbers 1, 13, 14, 27, 28 and 40 are molded onto rear of connector. See Figure .
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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.