600
Thermo King
Warning

Check Crankshaft Speed Sensor

Malfunction or erratic signal detected from the crankshaft position sensor.

Possible causes

  • Crankshaft sensor dirty with metal shavings
  • Incorrect air gap
  • Damaged wiring or electromagnetic interference

Recommended actions

  • Clean the sensor's magnetic tip
  • Check sensor resistance
  • Verify wiring harness integrity to the ECU

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