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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. MIL2. 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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