What this code means

Malfunction in the crankshaft position (CKP) sensor circuit. The CKP sensor is critical for engine timing and operation.

Symptoms

• Check Engine Light
• No start condition
• Engine stalling
• Intermittent misfire
• Tachometer erratic or dead

Common causes

• Faulty CKP sensor
• Damaged reluctor/tone ring
• Wiring issue
• Sensor gap incorrect
• Oil contamination on sensor

Diagnostic steps

1. Test CKP sensor resistance
2. Check air gap
3. Inspect reluctor ring for damage
4. Test wiring continuity
5. Scope CKP signal pattern

Repair notes

Replace CKP sensor. Check reluctor ring. CKP variation learn may be needed after replacement.

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