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 23, Check Pip Circuit For Short To Ground
With key off, disconnect diagnostic cable connector from crankshaft sensor. Disconnect diagnostic cable connector from DIS module (Pins No. 1-6). See Figure. Connect LED test light between breakout box pins No. (-) J33 (PIP S) and (+) J57 (BAT+). Turn key on.
If test light does not illuminate, go to next test. If test light illuminates, PIP is shorted to ground between sensor and DIS module. Check connectors, repair or replace harness and check for fault codes. If vehicle still does not start, 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.