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22 November, 2025

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Detroit DD16 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

DESCRIPTION:Wheel-based vehicle speed signal from source #1, #2, or #3 is erratic. MONITORED PARAMETER:Vehicle speed sensor. TYPICAL ENABLING CONDITIONS:1. Rpm...

22 November, 2025

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Detroit DD16 EPA07 (2007-09) 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...

22 November, 2025

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Detroit DD16 EPA07 (2007-09) Fault Code: SPN 84 FMI 20 (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...

22 November, 2025

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Detroit DD16 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...

22 November, 2025

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Detroit DD16 EPA07 (2007-09) Fault Code: SPN 84 FMI 3 (CPC) Vehicle Speed Sensor Open Circuit

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Vehicle speed sensor.2. Wiring between...

22 November, 2025

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Detroit DD16 EPA07 (2007-09) Fault Code: SPN 84 FMI 4 (CPC) Vehicle Speed Sensor Circuit Failed Low

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Vehicle speed sensor.2. Wiring between...

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