Detroit DD13 EPA10 (2010-13) Fault Code: SPN 84 FMI 3 (MCM) Vehicle Speed Sensor Open Circuit

DESCRIPTION:
Vehicle speed sensor circuit failed high.

MONITORED PARAMETER:
Vehicle Speed Sensor (VSS).

TYPICAL ENABLING CONDITIONS:
Always Enabled

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Always Enabled

TYPICAL DURATION:
2 seconds

DASH LAMPS:
MIL

ENGINE REACTION:
None

VERIFICATION:
Engine Idle (1 minute).

PROBABLE CAUSES:
1. Vehicle speed sensor.
2. Wiring between vehicle speed sensor and ECM.