MBE 4000 DDEC VI Troubleshooting – Section 82.3 SPN 1172/FMI 4

Section 82.3
SPN 1172/FMI 4

This code is typically turbocharger compressor inlet temperature circuit failed low.‪

Section 82.3.1
Short Circuit Check

Check as follows:‪

  1. Disconnect the TCI Sensor.
  2. Disconnect the MCM 120–pin connector.
  3. Measure resistance between pins 3 and pin 4 of the TCI Sensor harness connector.
    1. If the resistance is less than 3 Ω, repair the short between pins 3 and pin 4 of the TCI Sensor harness connector and pins 86 and 105 of the MCM 120–pin connector. Refer to "82.3.1.1 Verify Repairs" .
    2. If the resistance is greater than 3 Ω, repair the short between pin 3 of the TCI Sensor harness connector and pin 86 of the MCM 120–pin connector. Refer to "82.3.1.1 Verify Repairs" .
Section 82.3.1.1
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