Detroit DD13 EPA07 (2007-09) Fault Code: SPN 191 FMI 13 (CPC) This Diagnostic is Typically the Transmission Output Sped Shaft Signal is Missing

DESCRIPTION:
Transmission output shaft sped signal is missing.

MONITORED PARAMETER:
CAN communication

TYPICAL ENABLING CONDITIONS:
Always enabled

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Always enabled

TYPICAL DURATION:
2 seconds

DASH LAMPS:
MIL

VERIFICATION:
Engine Idle: One minute.

PROBABLE CAUSES:
1. If battery fault codes present, fix this first.
2. If any programming done recently on the engine, it may be incorrect.
3. Check other computers on truck for failures (ABS, Transmission, cab controller, etc…).