Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 70
FMI: 13
Description: J1939 Park Brake Switch Signal from Source #1, #2, or #3 is Missing
Troubleshooting:
DESCRIPTION:
Park brake switch signal data missing.
MONITORED PARAMETER:
Park brake switch.
TYPICAL ENABLING CONDITIONS:
Always on
MONITOR SEQUENCE:
Key ON
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Key ON, engine OFF
POSSIBLE CAUSES:
CPC needs updating.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 70
FMI: 19
Description: J1939 Park Brake Switch Signal from Source #1, #2, or #3 is Erratic
Troubleshooting:
DESCRIPTION:
Park brake switch signal erratic.
MONITORED PARAMETER:
Park brake switch.
TYPICAL ENABLING CONDITIONS:
Always on
MONITOR SEQUENCE:
Key ON
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Key ON, engine OFF
POSSIBLE CAUSES:
CPC needs updating.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 84
FMI: 0
Description: Vehicle Speed Above Programmable Threshold 1 While Driving
Troubleshooting:
NOTE: This is an information-only fault. It indicates that vehicle speed is above a
programmable threshold. It may be necessary to contact the truck owner or fleet manager to
see if they have this feature enabled.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 84
FMI: 2
Description: Vehicle Speed Signal Lost
Troubleshooting:
DESCRIPTION:
Unexpected loss of hard-wired vehicle speed signal.
MONITORED PARAMETER:
Vehicle speed sensor (VSS).
TYPICAL ENABLING CONDITIONS:
RPM greater than 1200, torque demand on.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
10 seconds
DASH LAMPS:
None
ENGINE REACTION:
None
VERIFICATION:
RPM greater than 1200, torque demand on.
POSSIBLE CAUSES:
1. Bent pins.
2. Spread pins.
3. Corroded pins.
4. Faulty wiring.