Section 30.1 SPN 111/FMI 1

Section 30.1
SPN 111/FMI 1

This diagnosis typically coolant level low.‪

Section 30.1.1
Engine Coolant Level Sensor Check

Check as follows:‪

  1. Turn the vehicle ignition switch ON (key On, engine OFF).
  2. Check for multiple codes.
    1. If other faults are active in addition to fault 111/1, troubleshoot the other faults first.
    2. If only fault 111/1 is active, go to step 3 .
  3. Check the coolant level in the reservoir. See Figure "Engine Coolant Level Sensor Mounted in Radiator Top Tank" .
    Click to see this graphic in a separate window

    Figure 1. Engine Coolant Level Sensor Mounted in Radiator Top Tank

    1. If the coolant level in the reservoir is not within limit, refer to "30.1.2 Coolant Leak or Faulty Radiator Cap Check" .
    2. If the coolant level in the reservoir is within limit, replace the sensor (see Figure "Engine Coolant Level Sensor Installation for CPC" ). Refer to "30.1.2.1 Verify Repairs" .
    3. Click to see this graphic in a separate window

      Figure 2. Engine Coolant Level Sensor Installation for CPC

Section 30.1.2
Coolant Leak or Faulty Radiator Cap Check

Check as follows:‪

  1. Check for coolant leak at cylinder head gasket.
  2. Check for coolant leak at air compressor head gasket.
  3. Check for external coolant leak at hose connections.
  4. Check for coolant in oil.
  5. Check for loose or faulty radiator cap.
  6. When these checks and subsequent repairs are finished, Refer to "30.1.2.1 Verify Repairs" .
Section 30.1.2.1
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.
  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 Series 60 DDEC VI Troubleshooting Guide - 6SE567
Generated on 10-13-2008

Leave a Reply

Your email address will not be published.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