Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1623
FMI: 13
Description: Tachograph Output Shaft Speed Signal is Missing or Not Available
Troubleshooting:
DESCRIPTION:
This diagnostic is tachograph output shaft speed signal is not available.
MONITOR PARAMETER:
J1939 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. Battery voltage.
2. Faulty Controller Area Network (CAN) line.
3. CPC needs proper configuration.
4. Faulty CPC.
5. CPC needs reprogramming.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1624
FMI: 2
Description: VSS Circuit 4 Pin 29 Erratic Data
Troubleshooting:
POSSIBLE CAUSES:
1. Corroded pins
2. Bent pins
3. Spread pins
4. Damaged pins
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1624
FMI: 3
Description: VSS Circuit4/29 Open or Short to Battery
Troubleshooting:
POSSIBLE CAUSES:
1. ICUC needs reprogramming.
2. Corroded pins.
3. Bent pins.
4. Spread pins.
5. Damaged pins.
6. Faulty wiring.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1624
FMI: 4
Description: VSS Circuit Connector 4 Pin 29 Short to Ground
Troubleshooting:
POSSIBLE CAUSES:
1. Corroded pins
2. Bent pins
3. Spread pins
4. Damaged pins
5. Faulty wiring
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1624
FMI: 9
Description: TCO1 Message is Missing
Troubleshooting:
DESCRIPTION:
J1939 message not available.
MONITORED PARAMETER:
J1939 communication
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, engine off.
POSSIBLE CAUSES:
1. Battery voltage.
2. Common Powertrain Controller (CPC) needs reprogramming.
3. CPC needs proper configuration.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 1624
FMI: 13
Description: Tachograph Vehicle Speed Signal is Missing or Not Available
Troubleshooting:
DESCRIPTION:
Tachograph vehicle speed signal is missing.
MONITORED PARAMETER:
J1939 communication
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, engine off.
POSSIBLE CAUSES:
1. Battery voltage.
2. Common Powertrain Controller (CPC) needs reprogramming.
3. CPC needs proper configuration.