Detroit DD13 GHG14 (2014-16) Fault Code: SPN 520326 FMI 4 (ACM) Over Pressurized Diesel Exhaust Fluid (DEF) System
DESCRIPTION:
Over pressurized Diesel Exhaust Fluid (DEF) system.
MONITORED PARAMETER:
DEF pump speed vs. DEF Pressure.
TYPICAL ENABLING CONDITIONS:
DEF pump enabled OR on-off-cycle request.
EXECUTION FREQUENCY:
Continuous when enabling conditions are met.
TYPICAL DURATION:
2 mintues
DASH LAMPS:
None
ENGINE REACTION:
None
VERIFICATION:
SCR ADS self check.
NOTE: If any other codes are active, fix those first.
PROBABLE CAUSES:
1. Inspect the DEF dosing unit and DEF pump harness wiring & connectors.
2. Check all DEF lines for damage/blocks/kinks.
3. DEF pump suction filter.
4. DEF dosing unit inlet filter.
5. DEF tank header.
6. DEF tank supply filter.
7. Replace the pressure relief valve.
![download Hitachi Construction Machinery MPDr Ver 3.7.0.0 [10.2020] Diagnostic Software](https://www.ecuforcetruck.com/wp-content/uploads/2023/05/MPDR-3.7.00-300x300.png)
![Volvo Penta EPC 6 Offline VMware [12.2021] VMware](https://www.ecuforcetruck.com/wp-content/uploads/2022/11/VOLVO-PENTA-2021-A-300x300.jpg)
Related products
-
-
-
-
-
-
Allison 1000 & 2000 Gen 4 Fault Codes: P2771 Four-Wheel Drive Switch Circuit
1000 & 2000 Gen 4 $50.00 -
Bendix ABS EC-30 Fault Code: SID 251 FMI 3
Bendix ABS -
Allison 1000 & 2000 Gen 4 Fault Codes: U1064 J1850 (Class 2) TBC Controller State of Health Failure
1000 & 2000 Gen 4 $50.00 -
-
Allison 1000 & 2000 Gen 4 Fault Codes: U1000 Class 2 Loss of Serial Data Communication
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0123 Pedal Position Sensor Circuit High Voltage
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: U0032 J1850 (Class 2) Serial Data Communication Link High
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: P1779 Engine Torque Delivered To TCM Signal
1000 & 2000 Gen 4 $50.00 -
-
Allison 1000 & 2000 Gen 4 Fault Codes: P1688 Unmanaged Engine Torque Delivered To TCM Signal
1000 & 2000 Gen 4 $50.00
