MBE 4000 DDEC VI Troubleshooting

Section 92.4 SPN 1636/FMI 14

Section 92.4
SPN 1636/FMI 14

This code indicates that the Intake Manifold Temperature Sensor has failed a self test.‪

Section 92.4.1
Temperature Check

Check the temperature as follows:‪

Note: Prior to performing this diagnostic procedure the engine must have a minimum of a three hour soak (cool down).

  1. Connect DDDL 7.0.
  2. Turn the ignition ON (key ON, engine OFF).
  3. Monitor the intake manifold, engine oil, engine coolant, EGR and turbo outlet temperature parameters.
  4. Are any of the temperature readings 15°F greater or less than that of the other sensors?
    1. If yes, inspect the suspect temperature sensors electrical connector for corrosion, bent or spread pins, repair as necessary. If there are no repairs, replace suspect temperature sensor. Refer to "93.4.1.1 Verify Repairs" .
    2. If no, go to step 5 .
  5. Prepare DDDL 7.0 for a snapshot.
  6. Start the engine, idle for 30 seconds, then TURN THE ENGINE OFF.
  7. Review the intake manifold, engine oil, engine coolant, EGR and turbo outlet temperature parameters on snapshot.
  8. Are any of the temperature readings 20°F greater or less than that of the other sensors?
    1. If yes, inspect the suspect temperature sensors electrical connector for corrosion, bent or spread pins, repair as necessary. If there are no repairs, replace suspect temperature sensor. Refer to "93.4.1.1 Verify Repairs" .
    2. If no, review steps 3 through 8 . If the results are the same, contact the Detroit Diesel Customer Support Center (313–592–5800).
Section 92.4.1.1
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.


EPA07 MBE 4000 DDEC VI Troubleshooting Guide - 6SE568
Generated on 10-13-2008

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