Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1077
FMI: 6
Description: Quantity Control Valve, Desired Current Does Not Match Actual Current
Troubleshooting:
DESCRIPTION:
Quantity control valve (QCV) error, current too low.
MONITORED PARAMETER:
Quantity Control Valve.
TYPICAL ENABLING CONDITIONS:
RP closed loop control.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Current less than 200 mA.
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
Engine idle (1 minute).
POSSIBLE CAUSES:
1. Faulty QCV
2. Faulty wiring
3. Faulty MCM
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1077
FMI: 14
Description: Internal or External Leakage of the High Pressure Fuel System (Too High, Leak
Down Test)
Troubleshooting:
NOTE: The motor control module (MCM) monitors rail pressure during engine shut down and
compares it to a stored learned value. If the bleed-down rate has changed to the leakage and
it is below the learned value, this code will set.
DESCRIPTION:
Leakage in high pressure fuel system too high (Leak down test).
MONITORED PARAMETER:
Fuel rail pressure.
TYPICAL ENABLING CONDITIONS:
Key off
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Once when enabling conditions met.
TYPCIAL DURATION:
30 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
VERIFICATION:
FSIC leak test.
POSSIBLE CAUSES:
1. MCM needs software update.
2. External high pressure fuel system leak.
3. Fuel in the oil.
4. Pressure Limiting Valve (PLV) leaks.
5. Faulty PLV.
6. Faulty injector(s).
7. Faulty high pressure fuel pump.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1089
FMI: 9
Description: AIR1 Message (Air Supply Pressure) Missing from First Source Address
Troubleshooting:
POSSIBLE CAUSES:
1. Battery voltage.
2. CPC needs proper configuration.
3. Faulty CPC.
4. CPC needs reprogramming.
Page
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1121
FMI: 2
Description: Powertrain Message (AMT – Detroit Transmission) is Missing
Troubleshooting:
DESCRIPTION:
Powertrain message missing.
MONITORED PARAMETER:
J1939 powertrain message.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Idle
POSSIBLE CAUSES:
1. Faulty Controller Area Network (CAN) line.
2. Battery voltage.
3. CPC needs proper configuration.
4. Faulty CPC.
5. CPC needs reprogramming.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1121
FMI: 13
Description: Service Brake Switch Signal from EBC1 is Missing or Not Available
Troubleshooting:
DESCRIPTION:
Service brake signal missing.
MONITORED PARAMETER:
Service brake input.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Service brake operation.
POSSIBLE CAUSES:
1. Faulty Controller Area Network (CAN) line.
2. CPC needs reprogramming.
3. CPC needs proper configuration.