MBE 900 DDEC VI Troubleshooting – Section 63.2 SPN 704/FMI 4

Section 63.2
SPN 704/FMI 4

High Exhaust System Temperature Lamp - indicates a short to ground on the pin 7 circuit of the CPC #4 connector. For wiring schematic information refer to OEM literature.‪

Note: The CPC digital outputs have the same SPN as some MCM faults. DDDL 7.0 makes the distinction between the MCM and CPC when diagnosing a fault.