MBE 4000 DDEC VI Troubleshooting – Section 127 SPN 3695 (CPC) – DPF Regen Mux Switch Messages Not Operating Normally
MBE 4000 DDEC VI Troubleshooting – Section 126 SPN 3664 – Electronic Unit Pump #6 Not Operating Normally
MBE 4000 DDEC VI Troubleshooting – Section 125 SPN 3663 – Electronic Unit Pump #5 Not Operating Normally