Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 558
FMI: 2

Description: Idle Validation Switch Inputs Reversed
Troubleshooting:
POSSIBLE CAUSES:
Faulty wiring
Page

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 558
FMI: 3

Description: Idle Validation Switch 1 Circuit Failed High
Troubleshooting:
DESCRIPTION:
IVS short to voltage or open circuit.
MONITORED PARAMETER:
Idle validation switch.
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 on.
POSSIBLE CAUSES:
1. Faulty wiring
2. Faulty IVS

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 558
FMI: 4

Description: Idle Validation Switch 1 Circuit Failed Low
Troubleshooting:
DESCRIPTION:
IVS short to ground.
MONITORED PARAMETER:
Idle validation switch.
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 on.
POSSIBLE CAUSES:
1. Faulty wiring
2. Faulty IVS

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 558
FMI: 5

Description: Idle Validation Switch 2 Circuit Failed Low
Troubleshooting:
DESCRIPTION:
IVS short to voltage or open circuit.
MONITORED PARAMETER:
Idle validation switch.
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 on.
POSSIBLE CAUSES:
1. Faulty wiring
2. Faulty IVS

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 558
FMI: 6

Description: Idle Validation Switch 2 Circuit Failed High
Troubleshooting:
DESCRIPTION:
IVS circuit short to voltage or open circuit.
MONITORED PARAMETER:
Idle validation switch.
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 on.
POSSIBLE CAUSES:
1. Faulty wiring
2. Faulty IVS