Section 28.3 SPN 111/FMI 4

Section 28.3
SPN 111/FMI 4

This fault is typically a circuit failed low. ‪

Click to see this graphic in a separate window

Check as follows:‪

  1. Turn the ignition ON (key On, engine OFF).
  2. Read the diagnostic codes displayed.
    1. If other faults are active in addition to fault 111/4, troubleshoot the other faults first.
    2. If only fault 111/4 is active, go to the next step.
  3. Disconnect the ECL Sensor.
  4. Disconnect the CPC #3 connector (21-pin).
  5. Measure the resistance across pins 1 and 2 of the ECL Sensor connector.
    1. If the resistance is less than 5 Ω, repair the short between the wires 2 and 11 of the CPC #3 connector. Refer to "28.3.1 Verify Repairs" .
    2. If the resistance is greater than 5 Ω, go to the next step.
  6. Measure the resistance between pin 1 of the ECL Sensor harness connector and ground.
    1. If the resistance is less than 5 Ω, repair the short circuit between pin 1 of the ECL Sensor harness connector and ground. Refer to "28.3.1 Verify Repairs" .
    2. If the resistance is greater than 5 Ω, go to the next step.
  7. Measure the resistance between pin 2 of the ECL Sensor harness connector and ground.
    1. If the resistance is less than 5 Ω, repair the short circuit between pin 2 of the ECL Sensor harness connector and ground. Refer to "28.3.1 Verify Repairs" .
    2. If the resistance is greater than 5 Ω, review the steps already taken.. If the results are the same, call the Detroit Diesel Customer Support Center (313–592–5800).

Section 28.3.1
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.
    warning

    ENGINE EXHAUST

    To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.‪

  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.


EPA07 DD15 Troubleshooting Guide - DDC-SVC-MAN-0029
Generated on 10-13-2008

Leave a Reply

Your email address will not be published. Required fields are marked *