Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 520
FMI: 18
Description: Reduced Engine Brake Power
Troubleshooting:
DESCRIPTION:
This fault code sets when the engine brake power has been limited to prevent engine damage
due to a fault in the Exhaust Gas Recirculation (EGR), intake or aftertreatment system.
MONITORED PARAMETER:
Engine brake
TYPICAL ENABLING CONDITIONS:
Engine brake request active.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Based on other fault codes present.
VERIFICATION:
Road test vehicle using engine brakes.
NOTE: This fault code is an information fault code that sets when there is a fault with the EGR,
intake or aftertreatment system.
POSSIBLE CAUSES:
Faulty MCM
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 523
FMI: 13
Description: J1939 Transmission Current Gear Signal is Missing or Not Available
Troubleshooting:
DESCRIPTION:
Transmission gear signal not available.
MONITORED PARAMETER:
Gear signal
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Key on engine on.
POSSIBLE CAUSES:
1. Battery voltage.
2. Faulty Controller Area Network (CAN) line.
3. Proper CPC configuration.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)MCM
PID: N/A
SPN: 523
FMI: 13
Description: Transmission Current Gear Signal Missing
Troubleshooting:
POSSIBLE CAUSES:
1. Battery voltage.
2. Faulty Controller Area Network (CAN) line.
3. Proper CPC configuration.
Page
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)MCM
PID: N/A
SPN: 523
FMI: 19
Description: Transmission Current Gear Signal is Erratic
Troubleshooting:
POSSIBLE CAUSES:
1. Battery voltage.
2. CPC needs reprogramming.
3. Proper CPC configuration.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 524
FMI: 9
Description: J1939 ETC2 Message Missing
Troubleshooting:
NOTE: Fault will set during Eaton transmission module reprogramming. If fault occurs while
programming, clear code and release vehicle.
POSSIBLE CAUSES:
1. Faulty Controller Area Network (CAN) line.
2. CPC needs reprogramming.
3. Proper CPC configuration.
Page
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 525
FMI: 7
Description: Internal Error with the DT12 Shift Stalk Lever
Troubleshooting:
POSSIBLE CAUSES:
1. Bent pins.
2. Spread pins.
3. Corroded pins.
4. Faulty wiring.
5. Faulty shift stalk lever.
Page
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 525
FMI: 9
Description: J1939 Powertrain Message (Transfer Case/PTO) is Missing
Troubleshooting:
POSSIBLE CAUSES:
1. Faulty wiring.
2. Improper CPC configuration.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 527
FMI: 9
Description: J1939 Cruise Control Vehicle Speed (CCVS) Message from Source #1, #2, or #3
Missing
Troubleshooting:
DESCRIPTION:
Missing message form J1939 source address.
MONITORED PARAMETER:
J1939 source address.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Key on engine on.
POSSIBLE CAUSES:
1. Faulty Controller Area Network (CAN) line.
2. CPC needs reprogramming.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 556
FMI: 9
Description: J1939 RC Message from Transmission Retarder is Missing
Troubleshooting:
DESCRIPTION:
J1939 message is missing.
MONITORED PARAMETER:
CAN communication
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
None
ENGINE REACTION:
None
VERIFICATION:
Key on engine on.
POSSIBLE CAUSES:
1. Faulty Controller Area Network (CAN) line.
2. CPC needs reprogramming.