Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4353 FMI 4 (ACM) Diffuser Heater Circuit Failed Low

NOTE: This fault will turn on the MIL and CEL lamps.

NOTE: If code not active, release vehicle to customer.

PROBABLE CAUSES:
1. DEF metering unit diffuser heater.
2. DEF metering unit diffuser heater connector/harness.
3. DEF doser valve.

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Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4334 FMI 4 (ACM) Diesel Exhaust Fluid Pressure Sensor Circuit Failed Low

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4334 FMI 3 (ACM) Diesel Exhaust Fluid Pressure Sensor Circuit Failed High

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4332 FMI 31 (ACM) DOC Inlet Temperature Out of Range Low Preventing Dosing

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