Detroit DD15 GHG14 (2014-16) Fault Code: SPN 597 FMI 19 (CPC) J1939 Service Brake Switch Signal from Source #1, #2 or #3 Erratic

NOTE: Please see the step by step troubleshooting procedures for this specific code.

PROBABLE CAUSES:
1. If any codes related to battery voltage are present, fix those first.
2. If 625-9 present, troubleshoot that instead.
3. If any engine modules have been programmed recently, check configuration.
4. Another computer module on the truck (ABS, transmission, cab, etc...) has a failure that is causing this.

Detroit DD15 GHG14 (2014-16) Fault Code: SPN 597 FMI 13 (CPC) J1939 Service Brake Switch Signal from Source #1, #2, Or #3 is Missing

Detroit DD15 GHG14 (2014-16) Fault Code: SPN 597 FMI 2 (CPC) Service Brake Status Not Plausible

Detroit DD15 GHG14 (2014-16) Fault Code: SPN 596 FMI 19 (CPC) J1939 Cruise Control Enable Switch Signal from Source #1, #2, Or #3 Erratic

Detroit DD15 GHG14 (2014-16) Fault Code: SPN 596 FMI 13 (CPC) J1939 Cruise Control Enable Switch Signal from Source #1, #2, #3 Missing

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