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 9, Check Pip Circuit For Short To Ground
With key off and ECA disconnected, disconnect EDIS module from EDIS module tee. Leave EDIS cable connected to EDIS module side of vehicle harness connector. Disconnect EDIS diagnostic cable positive lead from battery positive. Set DVOM to 2-k/ohm scale. Measure resistance between breakout box pins No. J43 (PIP E) and J7 (BAT -).
If resistance is less than 5 ohms, PIP is shorted to ground in harness. Check connectors, and repair or replace harness. Check for fault codes. If resistance is greater than 5 ohms, go to next test.
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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.