Section 57.2 SPN 647/FMI 4

Section 57.2
SPN 647/FMI 4

This fault code indicates that there is a short to ground.‪

Check as follows:‪

  1. Turn the ignition OFF.
  2. Disconnect the fan control solenoid connector.
  3. Disconnect the 120–pin MCM connector.
  4. Measure the resistance between pin 1 of the fan control solenoid connector and ground.
    1. If the resistance is less than 5 Ω, repair the short to ground between pin 1 of the fan control solenoid connector and pin 98 of the 120–pin MCM connector. Refer to "57.2.1 Verify Repairs" .
    2. If the resistance is greater than 5 Ω, repair the short to ground between pin 2 of the fan control solenoid connector and pin 91 of the 120–pin MCM connector. Refer to "57.2.1 Verify Repairs" .

Section 57.2.1
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

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