Detroit DD15 EPA07 (2007-09) Fault Code: SPN 191 FMI 19 (CPC) Transmission Output Speed Shaft Signal is Erratic
DESCRIPTION:
J1939 transmission output shaft speed signal is erratic.
MONITORED PARAMETER:
CAN Communication
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
2
DASH LAMPS:
MIL
ENGINE REACTION:
None
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…).
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