Series 50G & 60G Troubleshooting

Section 6.4 SID 51, FMI 4, Flash Code 31, Auxiliary Output No. 3, Short to Ground (High Side)

Section 6.4
SID 51, FMI 4, Flash Code 31, Auxiliary Output No. 3, Short to Ground (High Side)

The auxiliary output No. 3 has a short to ground.‪

Section 6.4.1
Troubleshooting SID 51, FMI 4, Flash Code 31

Troubleshoot as follows:‪

NOTICE:

To avoid damage to the harness and connectors when disconnecting harness connectors, ensure the pulling force is applied to the connectors and not to the wires extending from the connectors.‪

  1. Check wire 561 (red, throttle power relay) for a short to ground at cavity S-3 in the Engine Sensor Harness (ESH) 30–pin connector (see Figure "Engine Sensor Harness 30–pin Connector" ) and pin A in the 5-way digital output harness connector (see Figure "Vehicle Interface Harness 5–way Connector" ). If there is a short, repair or replace the wire(s), pins, and sockets.
    Click to see this graphic in a separate window

    Figure 1. Engine Sensor Harness 30–pin Connector

    Click to see this graphic in a separate window

    Figure 2. Vehicle Interface Harness 5–way Connector

    1. If the code is still active, go to step 2.
    2. If the code is no longer active, refer to "6.4.2 Verification" .
  2. Check wire 562 (orange, fuel solenoid relay) for a short to ground at cavity T-3 in the ESH 30–pin connector (see Figure "Engine Sensor Harness 30–pin Connector" ) and pin B in the 5-way digital output harness connector (see Figure "Vehicle Interface Harness 5–way Connector" ). If there is a short, repair or replace the wire(s), pins, and sockets.
    1. If the code is still active, call Detroit Diesel Technical Service.
    2. If the code is no longer active, refer to "6.4.2 Verification" .

Section 6.4.2
Verification

Verify that troubleshooting was successful :‪

  1. Check the DDR to see if SID 51, FMI 4, Flash Code 31 is still active.
    1. If the code is still active, go to step 2.
    2. If the code is not active, troubleshooting is complete.
  2. If code is still active, call Detroit Diesel Technical Service.


Series 50G and 60G Troubleshooting Guide - 6SE482
Generated on 10-13-2008

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