Series 60 DDEC V Troubleshooting

Section 73.4 Troubleshooting Flash Code 81, PID 98/FMI 3

Section 73.4
Troubleshooting Flash Code 81, PID 98/FMI 3

The EOL Sensor is part of the Maintenance Alert System (MAS). Troubleshoot p 98/3 using the following procedures.‪

Section 73.4.1
Multiple Code Check

Perform the following steps to check for multiple codes:‪

  1. Turn ignition ON and plug in your diagnostic tool.
  2. Read active codes. Turn ignition OFF.
    1. If code 98/3 displays with code s 232/0, troubleshoot s 232/0 first.
    2. If code 98/3 displays, refer to "73.4.2 Check Connectors and Sensor" .

Section 73.4.2
Check Connectors and Sensor

Perform the following steps to check the connectors: ‪

  1. Unplug the OLS/EOL Sensor.
  2. Turn the ignition ON and read the codes.
    1. If code 98/4 displays, check connectors for open, damage or unseated conditions. Go to step 3 .
    2. If code 98/3 displays, refer to "73.4.3 Check for Short and Open" .
  3. Replace the EOL Sensor. Verify the repair. Refer to "73.4.3.1 Verify Repairs" .

Section 73.4.3
Check for Short and Open

Perform the following steps to check for short and open:‪

  1. Measure resistance between pin B and pin C of the EOL Sensor. See Figure "Oil Level Sensor" .
    1. If the reading is less than 10 Ω, wire E–12 is shorted to wire E–21. Repair the short or replace the harness and verify the repair. Refer to "73.4.3.1 Verify Repairs" .
    2. If the reading is greater than 10 Ω, go to step 2 .
  2. Unplug the Engine Harness connector.
  3. Insert a jumper harness between the pins A and B of the EOL Sensor connector. Measure resistance between cavity E–15 and E–21. See Figure "Oil Level Sensor" .
    1. If reading is greater than 10 Ω, cavity E–15 is open. Repair the open or replace the harness; verify the repair. See Figure "Oil Level Sensor" . Refer to "73.4.3.1 Verify Repairs" .
    2. If the reading is less than 10 Ω, contact the Detroit Diesel Customer Support Center (313–592–5800) or try a test ECM/ECU.
    3. Click to see this graphic in a separate window

      Figure 1. Oil Level Sensor

Section 73.4.3.1
Verify Repairs

Perform the following steps to verify repairs:‪

  1. Plug in all connectors. Start and run the engine for two minutes
  2. Check for codes. If no codes display, the repair is complete. If code 98/3 displays, review the troubleshooting of the EOL Sensor to find the error. Refer to "73.4.1 Multiple Code Check" .


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

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