DESCRIPTION:This code will set when there is a camshaft and crankshaft mismatch signal.
MONITORED PARAMETER:Camshaft/crankshaft sensors.
EXECUTION FREQUENCY:Continuous when enabling conditions met.
DASH LAMPS:1. MIL2. CEL
VERIFICATION:Engine idle: One minute.
NOTE: If code 723-3, 723-4, 636-3, or 636-4 active fix those first.
PROBABLE CAUSES:1. Verify proper camshaft timing and gear lash adjustment.2. Camshaft position sensor failure.3. Camshaft position sensor harness/connector.
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 636 FMI 1 (MCM) Crankshaft Position Sensor Signal Voltage Too Low
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 630 FMI 14 (CPC) Communication Interruption Between the Common Powertrain Controller and Motor Control Module
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 629 FMI 12 (CPC) Multiple Fault Descriptions
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 629 FMI 2 (CPC) Multiple Fault Descriptions
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 628 FMI 14 (CPC) XFLASH Failure
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 628 FMI 13 (CPC) Multiple Fault Description