NOTE: This SPN is broadcast to the motor control module (MCM) via the common powertrain controller (CPC).
NOTE: Please see the step by step troubleshooting procedures for this specific code.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 84 FMI 4 (MCM) Vehicle Speed Sensor Circuit Failed Low
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 84 FMI 4 (CPC) Vehicle Speed Sensor Circuit Failed Low
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 84 FMI 3 (MCM) Vehicle Speed Sensor Open Circuit
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 84 FMI 3 (CPC) Vehicle Speed Sensor Open Circuit
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 84 FMI 2 (CPC) Vehicle Speed Signal Lost
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 84 FMI 2 (CPC) J1939 Wheel-Based Vehicle Speed Signal from Source #1 is Erratic