Detroit DD13 EPA07 (2007-09) Fault Code: SPN 84 FMI 21 (CPC) Vehicle Speed Sensor Erratic
DESCRIPTION:Vehicle speed sensor erratic.
MONITORED PARAMETER:Vehicle Speed Sensor (VSS).
TYPICAL ENABLING CONDITIONS:1. Rpm greater than 1500.2. Torque demand on.
MONITOR SEQUENCE:None
EXECUTION FREQUENCY:Continuous when enabling conditions met.
TYPICAL DURATION:10 seconds
DASH LAMPS:MIL
ENGINE REACTION:None
VERIFICATION:1. Rpm greater than 1500.2. Torque demand on.
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 electrical issue on truck.4. Vehicle speed sensor.5. Vehicle speed sensor harness/connector.
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 84 FMI 19 (CPC) J1939 Wheel-Based Vehicle Speed Signal (VSS) from Source #1, #2, Or #3 is Erratic
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 84 FMI 14 (CPC) J1939 Wheel-Based Vehicle Speed Signal from Source #3 is Missing
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 84 FMI 13 (CPC) J1939 Wheel-Based Vehicle Speed Signal from Source #1, #2 or #3 is Missing
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 84 FMI 11 (CPC) Vehicle Speed Above Programmable Threshold 2 While Driving
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 84 FMI 10 (CPC) J1939 Wheel-Based Vehicle Speed Signal from Source #3 is Erratic