Detroit Diesel
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3226 FMI 21 (ACM) NOx Outlet Sensor Drift High
Posted by PerDiezel Solutions on
DESCRIPTION:Outlet NOx sensor drifted high. MONITORED PARAMETER:Selective catalyst reduction (SCR) outlet NOx. TYPICAL ENABLING CONDITIONS:Always enabled MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:MIL ENGINE REACTION:None VERIFICATION:Parked regeneration NOTE: If any other EGR codes are active, fix those first. PROBABLE CAUSES:1. Check the aftertreatment system for leaks/damage.2. Perform a high idle regeneration with the metering valve or dosing unit disconnected.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3226 FMI 3 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed High
Posted by PerDiezel Solutions on
DESCRIPTION:This code sets when there is a short to power on the SCR outlet NOx circuit between the sensor and CPU. MONITORED PARAMETER:SCR Outlet NOx sensor. TYPICAL ENABLING CONDITIONS:Dewpoint enabled MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:None VERIFICATION:Parked regen NOTE: If occurrence counter 5 or less, clear codes and return vehicle to customer. PROBABLE CAUSES:SCR outlet NOx sensor.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low
Posted by PerDiezel Solutions on
DESCRIPTION:This code sets when there is a short to ground on the SCR outlet NOx circuit between the sensor and CPU. MONITORED PARAMETER:SCR outlet NOx sensor. TYPICAL ENABLING CONDITIONS:Dewpoint enabled MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:None VERIFICATION:Parked regen NOTE: If occurrence counter 5 or less, clear codes and return vehicle to customer. PROBABLE CAUSES:SCR outlet NOx sensor.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3236 FMI 9 (ACM) Exhaust Mass Signal Not Available via Controller Area Network
Posted by PerDiezel Solutions on
NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If any engine ECMs have been programmed recently, clear codes and release vehicle to customer. NOTE: Otherwise, clear codes, turn key off for 5 minutes, and re-start. If it comes back, use 625-9 to troubleshoot
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3238 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Failure to Activate
Posted by PerDiezel Solutions on
NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If codes 5357-16 or 5357-18 present, fix those first. PROBABLE CAUSES:1. Perform a stationary regen.2. SCR outlet NOx sensor.
