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.
Test 28, Check Pip EEC Circuit For Short To Ground
Connect LED test light between breakout box pins No. (-) J31 (PIP EEC) and (+) J57 (BAT+). If test light illuminates, PIP EEC is shorted to ground. Check connectors, repair or replace harness and check for fault codes. If test light does not illuminate, replace DIS module, and check for fault codes.
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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.