Detroit Fault Codes SPN 70/FMI 13 – EPA07 – EPA10 – GHG14
SPN 70/FMI 13 - EPA07 - EPA10 - GHG14
J1939 Park Brake Switch signal from Source #1, #2, or #3 is Missing
SPN 70/FMI 13 - EPA07 - EPA10 - GHG14
Check as follows:
1. Check for multiple codes:
1.1. If Common Powertrain Controller (CPC) SPN 168/FMI 0/14/18 (Battery Voltage) are present, troubleshoot these first.
1.2. If CPC SPN 168/FMI 0/14/18 (Battery Voltage) are present, troubleshoot these first.
1.3. If only a J1939 Error fault is present, Go to step 2.
2. Has the CPC been recently reprogrammed?
2.1. Yes, check the proper configuration of the CPC.
2.2. 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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