P0335: Kurbelwellenpositionssensor A — Schaltkreisfehler
Kurbelwellenpositionssensor A — Schaltkreisfehler: ECM receives no RPM signal from the crankshaft reluctor wheel during cranking or running.
| Trouble Code (DTC) | P0335 |
|---|---|
| Official SAE Definition | Kurbelwellenpositionssensor A — Schaltkreisfehler |
| Vehicle Subsystem | powertrain |
| Driving Severity | HIGH |
Observable Symptoms
- Engine cranks but will not start
- Sudden stalling when hot
- Tachometer drops to zero while cranking
Most Probable Root Causes
- Failed crankshaft position sensor (thermal breakdown)
- Damaged reluctor tone ring or air gap misalignment
- Chafed harness near engine block
Step-by-Step Diagnostic Procedure
- Observe scan tool engine RPM while cranking (0 RPM confirms CKP signal loss)
- Test sensor resistance/supply voltage and inspect tone ring teeth