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.
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HOMESERVICE MANUALSBUICK2000PARK AVENUE BASE, 3.8 1REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - SELF-DIAGNOSTICS - 3.8LDIAGNOSTIC TESTSDTC P0336: CRANKSHAFT POSITION (CKP) SENSOR CIRCUITDIAGNOSTIC PROCEDURES
2000 Buick Park Avenue Base, 3.8 1
Diagnostic Procedures
2000 Buick Park Avenue Base, 3.8 1SECTION Diagnostic Procedures
- Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM. After performing OBD system check, go to next step.
- Attempt to start engine. If engine starts and runs, go to next step. If engine does not start or starts and stalls, see NO START DIAGNOSIS in appropriate BASIC DIAGNOSTIC PROCEDURES article.
- Using scan tool, clear DTC. Start and allow engine to idle for one minute. Read DTCs. If DTC resets, go to next step. If DTC does not reset, go to DIAGNOSTIC AIDS .
- Disconnect ICM and PCM harness connectors. Check for open or short to ground in 18X reference circuit between ICM and PCM harness connectors. Repair as necessary. After repairs, go to step 11. If no problem is found, go to next step.
- Turn ignition off. Reconnect ICM connector. Disconnect crank sensor. Connect a DVOM between a good ground and 18X reference circuit at PCM harness connector. Connect a test light to a good ground. Repeatedly touch test light to crank sensor 18X signal circuit at harness connector while observing DVOM. If measured voltage reading changes, go to step 11. If measured voltage reading does not changes, go to next step.
- Check for short to voltage or poor connections at ICM. Repair as necessary. After repairs, go to step 11. If connections are okay, go to next step.
- Replace ICM. After replacing module, go to step 11.
- Check for incorrect harness routing near secondary ignition components, ignition coil arcing to wiring harness or ICM. Check ignition coils for cracks, carbon tracking or other signs of damage. Check for secondary ignition wire(s) arcing to wiring harness. Repair as necessary. After repairs, go to step 11. If no problem is found, go to next step.
- Check for faulty connections at PCM. Repair as necessary. After repairs, go to step 11. If connections are okay, go to next step.
- Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
- Read and record FAILURE RECORDS data for this DTC. Operate vehicle within conditions noted in FAILURE RECORDS data. Using scan tool, read SPECIFIC DTC. If scan tool indicates that this DTC FAILED THIS IGN, return to step 2. If scan tool does not indicate that this DTC FAILED THIS IGN, system is okay.
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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.