Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 636
FMI: 11

Description: Crankshaft Position Sensor – Sensor Failure
Troubleshooting:
DESCRIPTION:
Crankshaft Position (CKP) Sensor failure.
MONITORED PARAMETER:
Crankshaft position sensor.
TYPICAL ENABLING CONDITIONS:
Engine idle
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Engine idle
POSSIBLE CAUSES:
1. Bent pins.
2. Spread pins.
3. Broken pins.
4. Unseated pins.
5. Corroded pins.
6. Damaged seal.
7. Wire damage.
8. Faulty CKP sensor.
9. Damaged Crankshaft flywheel.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 636
FMI: 15

Description: No Match of Camshaft and Crankshaft Signals
Troubleshooting:
DESCRIPTION:
This code will set when a mismatch signal between the Camshaft and the Crankshaft is
detected.
MONITORED PARAMETER:
Camshaft/Crankshaft sensors.
TYPICAL ENABLING CONDITIONS:
Engine idle
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
10 seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Engine Idle (one minute).
POSSIBLE CAUSES:
1. Faulty wiring.
2. Damaged Camshaft Position (CMP) sensor.
3. Damaged intake camshaft.
4. Faulty camshaft.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 639
FMI: 9

Description: J1939 PROP11 Message is Missing
Troubleshooting:
DESCRIPTION:
J1939 message missing.
MONITORED PARAMETER:
None
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Key on
POSSIBLE CAUSES:
Missing communication line.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 639
FMI: 13

Description: HDMS Fan is Configured and the J1939 Message Was Not Received or Has
Stopped Arriving
Troubleshooting:
DESCRIPTION:
J1939 fan message missing.
MONITORED PARAMETER:
None
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Key on
POSSIBLE CAUSES:
1. Faulty CPC.
2. CPC needs parameters reset.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 639
FMI: 14

Description: J1939 Data Link Failure
Troubleshooting:
DESCRIPTION:
J1939 data link message missing.
MONITORED PARAMETER:
None
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Key on
POSSIBLE CAUSES:
Missing communication line.