MBE 4000 DDEC VI Troubleshooting – Section 23 SPN 84 – Vehicle Speed Sensor Email This Page Section 23 SPN 84 - Vehicle Speed Sensor 23.1 SPN 84/FMI 2 23.2 SPN 84/FMI 3 23.3 SPN 84/FMI 4 23.4 SPN 84/FMI 6 23.5 SPN 84/FMI 8 EPA07 MBE 4000 DDEC VI Troubleshooting Guide - 6SE568 Generated on 10-13-2008