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 8, Isolate EDIS Module/Pip Fault
With key off, connect EDIS diagnostic cable positive lead to battery positive. Set DVOM to 20-volt AC scale. Hold EDIS diagnostic cable PIP push button down. Crank engine, and measure voltage breakout box pins No. J43 (PIP E) and J7 (BAT -).
If settled AC voltage is greater than one volt, go to next test. If settled AC voltage is less than one volt, there is no PIP output from EDIS module. Replace EDIS module, and remove all test equipment. Reconnect all components, and check for fault codes.
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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.