Series 60 DDEC V Troubleshooting

Section 43.3 Troubleshooting Flash Code 39, SID 146, 147/FMI 2, 12, 7, 14, 11

Section 43.3
Troubleshooting Flash Code 39, SID 146, 147/FMI 2, 12, 7, 14, 11

The following procedure will troubleshoot Flash Code 39. ‪

Section 43.3.1
EGR Related Codes

For all EGR related codes, first refer to "20.18 Exhaust Gas Recirculation System Basic Checks for Series 60 Engines" , “Exhaust Gas Recirculation System Basic Checks, ”and perform the steps listed. Performing the basic checks will troubleshoot the components that could be responsible for logging these codes.‪

If the basic checks all pass, and no fault can be found with the VNT/turbocharger or EGR valve, then it is recommended that the information you have collected be available to discuss with the Detroit Diesel Customer Support Center (313–592–5800).‪

  • Code s 146/7 — occurs if actual EGR rate during EGR mode operation is less than it should be. This fault will lock boost mode operation and illuminate the CEL/AWL for the remainder of the ignition cycle.
  • Code s 146/2 — occurs if actual EGR rate during Power Boost mode operation is greater than a calibrated value. This fault will illuminate the CEL/AWL for the duration of the fault being active.
  • Code s 146/12 — occurs if actual EGR rate during Boost Jake mode operation is greater than a calibrated value. This fault will illuminate the CEL/AWL for the duration of the fault being active.
  • Code s 147/7 — occurs if error in actual EGR rate vs desired EGR rate (Actual – Desired) during EGR mode operation. This FMI signifies excessive EGR flow. This fault will lock boost mode operation and illuminate the CEL/AWL for the remainder of the ignition cycle if the actual is greater than the desired.
  • Code s 147/2 — occurs if error in actual boost vs desired boost during Power Boost mode operation is greater than it should be. This fault will illuminate the CEL/AWL for the duration of the fault being active.
  • Code s 147/12 — occurs if error in actual boost vs desired boost during Jake Boost mode operation is greater than it should be. This fault will illuminate the CEL/AWL for the duration of the fault being active.
  • Code s 147/14 — occurs if error in actual EGR rate vs desired EGR rate (Desired – Actual) during EGR mode operation. This FMI signifies low EGR flow. This fault will illuminate the CEL/AWL for the duration of the fault being active.

Section 43.3.2
Verify Repairs

Perform the following steps to verify repairs:‪

  1. Reassemble the engine.
  2. Start and run the engine.
  3. Perform a road test.
  4. Check for logged codes.
    1. For Series 60 engines, refer to "20.18 Exhaust Gas Recirculation System Basic Checks for Series 60 Engines" or call Detroit Diesel Customer Service Center (313–592–5800).
    2. If no codes are logged, repairs are complete.


Series 60 DDEC V Troubleshooting Guide - 6SE570
Generated on 10-13-2008

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