MBE 4000 DDEC VI Troubleshooting – Section 132.3 SPN 4227/FMI 7

Section 132.3
SPN 4227/FMI 7

This diagnosis is typically maximum duration time reached for the oil separator.‪

Section 132.3.1
Open Circuit Check

Check as follows:‪

1. Disconnect the Electrostatic Oil Separator.
2. Disconnect the MCM 120–pin connector.
3. Measure the resistance between pin 3 of the Electrostatic Oil Separator harness connector and pin 107 of the MCM 120–pin connector.
   1. If the resistance is greater than 3 Ω, repair the open circuit between pin 3 of the Electrostatic Oil Separator harness connector and pin 107 of the MCM 120–pin connector. Refer to "132.3.1.1 Verify Repairs" .
   2. If the resistance is less than 3 Ω, replace the Electrostatic Oil Separator. The replacement procedure may be found in the MBE EPA07 4000 Service Manual (6SE420), refer to 6.5.

Section 132.3.1.1
Verify Repairs

Verify repairs as follows:‪

1. Turn ignition OFF.
2. Reconnect any electrical connections that were disconnected to perform the diagnosis.
3. Clear codes with DDDL 7.0 or latest version.
4. Start and bring engine up to operating temperature (over 140°F/60°C).
5. Verify operation is satisfactory and no warning lamps illuminate. If warning lamps illuminate, troubleshoot the codes. If assistance is required, call the Detroit Diesel Customer Support Center at 313–592–5800.