Section 28.2 SPN 111/FMI 3

Section 28.2
SPN 111/FMI 3

This condition is typically a circuit failed high.‪

Click to see this graphic in a separate window

Check as follows:‪

  1. Check for multiple codes.
    1. If other faults are active in addition to fault 111/3, troubleshoot the other faults first.
    2. If only fault 111/3 is active, go to the next step.
  2. Disconnect the ECL Sensor.
  3. Measure the resistance between pin 1 and 2 of the ECL Sensor.
    1. If the resistance is greater than 600 kΩ (submerged) or open, replace ECL sensor. Refer to "28.2.1 Verify Repairs" .
    2. If the resistance is less than 600 kΩ, go to the next step.
  4. Turn the ignition ON (key On, engine OFF).
  5. Measure the voltage between pins 1 and 2 of the ECL Sensor harness connector.
    1. If the voltage is greater than 2.75 volts, go to step 7 .
    2. If the voltage is less than 2.75 volts, go to the next step.
  6. Measure the voltage between pin 1 of the ECL Sensor harness connector and ground.
    1. If the voltage is greater than 2.75 volts, repair the open between pin 2 of the CPC #3 connector and the ECL Sensor harness. Refer to "28.2.1 Verify Repairs" .
    2. If the voltage is less than 2.75 volts, repair the open between pin 11 of the CPC #3 connector and the ECL Sensor harness. Refer to "28.2.1 Verify Repairs" .
  7. Disconnect the CPC #3 connector.
  8. Measure the resistance between pins 1 and 2 of the ECL Sensor harness connector.
    1. If the resistance is less than 5 Ω, repair the short between the ECL Sensor harness connector pins 1 and 2 and pins 2 and 11 of the CPC #3 connector. Refer to "28.2.1 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 28.2.1
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 *