Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3216 FMI 13 (ACM) Selective Catalyst Reduction Inlet NOx Sensor Signal Not Available
DESCRIPTION:
Selective catalyst reduction (SCR) inlet NOx sensor signal not available.
MONITORED PARAMETER:
SCR inlet NOx sensor signal.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
Two seconds
DASH LAMPS:
MIL
VERIFICATION:
Engine Idle: One minute.
NOTE: If fault occurred during high idle regeneration, clear fault and release vehicle.
NOTE: If occurrence counter 5 or less, clear codes and return vehicle to customer.
PROBABLE CAUSES:
1. SCR inlet NOx sensor.
2. SCR inlet NOx sensor connector/harness.
3. ACM2 (engine computer) failure.
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