P1335critical severityPowertrain
Crankshaft Position Sensor REF
on 2021 Nissan Leaf Electric 40kWh · FWD
What this code means
CKP REF signal not detected during first seconds of cranking.
Symptoms
- CEL
- No-start
- Cranks but no start
- Intermittent stalling
Common causes
- Faulty CKP sensor
- Damaged wiring
- Weak battery
- Excessive air gap
Diagnostic steps
- Test CKP signal during crank
- Check wiring
- Test battery
- Check air gap
Repair notes
Replace CKP sensor.
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