Detroit DD16 GHG14 (2014-16) Fault Code: SPN 84 FMI 2 (CPC) J1939 Wheel-Based Vehicle Speed Signal from Source #1 is Erratic

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

NOTE: If codes for other modules are present, fix those first.

PROBABLE CAUSES:
1. Improper programming of the CPC (Common Powertrain Controller).
2. Other failed modules on the truck (Transmission, ABS, Cab controller, etc…).
3. Battery/battery cable issues, or electical issue on truck.

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 84 FMI 0 (CPC) Vehicle Speed Above Programmable Threshold 1 While Driving

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 70 FMI 19 (CPC) Park Brake Switch Signal from Source #1, #2, or #3 is Erratic

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 70 FMI 13 (CPC) Park Brake Switch Signal from Source #1, #2, or #3 is Missing

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 70 FMI 2 (CPC) Park Brake Switch Signal from Source #1, #2, or #3 Data Erratic, Intermittent or Incorrect

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 51 FMI 18 (MCM) Intake Throttle Position Rationality Error

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 51 FMI 10 (MCM) Intake Throttle Position Abnormal Rate of Change

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