Detroit DD13 EPA07 (2007-09) Fault Code: SPN 636 FMI 1 (MCM) Crankshaft Position Sensor Signal Voltage Too Low
DESCRIPTION:
Crankshaft position (CKP) sensor signal voltage too low.
MONITORED PARAMETER:
Crankshaft position sensor signal.
TYPICAL ENABLING CONDITIONS:
Engine idle
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
10 seconds
DASH LAMPS:
1. MIL
2. CEL
VERIFICATION:
Engine Idle: One minute.
PROBABLE CAUSES:
1. Crankshaft or Camshaft sensor connector/harness.
2. Crankshaft or Camshaft sensor.
3. Flywheel out of position.
4. Crankshaft thrust bearing failure.
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