Detroit Fault Codes SPN 70/FMI 19 – EPA07 – EPA10 – GHG14
SPN 70/FMI 19 - EPA07 - EPA10 - GHG14
J1939 Park Brake Switch Signal from Source #1, #2, or #3 is Erratic
SPN 70/FMI 19
Check as follows:
1. Check for multiple codes:1. If Common Powertrain Controller (CPC) SPN 168/FMI 0/14/18 (battery voltage) are present, troubleshoot and repair these first.
1. 2. If Motor Control Module (MCM) SPN 625/FMI 9 is present, troubleshoot and repair the Controller Area Network (CAN) line.
1. 3. If only a J1939 error fault is present, Go to step 2.
2. Has the CPC been recently reprogrammed?
2.1. If yes, check the proper configuration of the CPC.
2.2. If no, connect DiagnosticLink® to determine which chassis modules are configured for the vehicle and their communication status. Once this is done, follow the appropriate module communication troubleshooting procedures for the affected module.
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