The Detroit adaptive cruise control troubleshooting sheet documents Detroit fault code SPN 1590 FMI 19, which sets when the adaptive cruise control message is not received. This 2-page PDF belongs to the Detroit DD Series (EPA 2007-Current) DTC library and guides a technician through the confirmation and repair sequence for the code. It is drawn from Detroit Power Service Literature and republished by TruckFaultCodes.com (2017).
The procedure confirms there are no CPC battery-voltage faults, checks whether the truck actually carries an Adaptive Cruise Control module, verifies the PGR043 enable parameter, and inspects the J1939 wiring plus power and ground to the module against OEM information.
Detroit adaptive cruise control document details
| Brand | Detroit |
| Model coverage | DD Series (EPA 2007-Current) |
| System / Group | Diagnostic Trouble Codes (DTCs) |
| Fault code | SPN 1590 FMI 19 |
| Source | Detroit Power Service Literature |
| Pages | 2 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Multiple-code check (SPN 168 battery voltage)
- Adaptive Cruise Control module presence check
- CPC parameter PGR043 configuration
- J1939 wiring inspection to the ACC module
- Power and ground verification
Applicable truck models
This fault code troubleshooting procedure applies to Detroit DD Series engines built to EPA 2007 and later emissions standards, covering EPA07 and GHG14 configurations within the DD Series DTC set. Use it alongside a diesel diagnostic tool such as DiagnosticLink or ServiceLink to read live data and confirm the code before any parts are replaced. For engine coverage and official service resources, visit the Detroit Diesel official website.
Who needs this Detroit adaptive cruise control manual
Fleet technicians, mobile diesel mechanics and workshop owners rely on this reference before opening the SPN 1590 FMI 19 code with a scan tool. Following the documented sequence avoids replacing good parts and clarifies whether the concern lies in wiring, a sensor, or a mechanical component.
The full SPN 1590 FMI 19 PDF is available in the DiagTechPro manuals library; a free account is required to download.
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