DD15 Troubleshooting – Section 39.5 SPN 411/FMI 13

Section 39.5
SPN 411/FMI 13

This diagnosis is typically EGR Delta P Sensor out of calibration.‪

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Check as follows”‪

  1. Disconnect the EGR Delta P Sensor.
  2. Inspect the EGR Delta P Sensor connector for bent, spread or corroded pins.
    1. If pin damage is found, repair as necessary. Refer to "39.5.1 Verify Repairs" .
    2. If no pin damage is found, go to the next step.
  3. Replace the EGR Delta P Sensor. When the sensor is replaced, connect DDDL 7.0 and perform the EGR valve calibration service routine.

Section 39.5.1
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.


    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

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