Series 60 DDEC V Troubleshooting – Section 74.4 Troubleshooting Flash Code 82, PID 98/FMI 4

Section 74.4
Troubleshooting Flash Code 82, PID 98/FMI 4

The OLS/EOL Sensor is part of the Maintenance Alert System (MAS).‪

Section 74.4.1
Read Codes

Perform the following steps to read codes:‪

1. Turn ignition ON, plug in the diagnostic tool and read the active codes.
2. Record or print codes and turn the ignition OFF.
   1. If code 98/4 displays with 232/1, troubleshoot 232/1 first.
   2. If code 98/4 displays, refer to "74.4.2 Check for Open and a Short" .

Section 74.4.2
Check for Open and a Short

Perform the following steps to check for open: ‪

1. Unplug the Oil Level Sensor/Engine Oil Level Sensor.
2. Insert the jumper wire between cavities B and C. See Figure "Oil Level Sensor" .
   

   Figure 1. Oil Level Sensor

3. Turn ignition ON.
4. Read codes.
   1. If code 98/3 displays, check the connectors for damaged, open or broken pins. If everything checks out, go to step 5 . If damage is noted, repair and verify the repairs. Refer to "74.4.4 Verify Repairs" .
   2. If code 98/4 displays, refer to "74.4.3 Check Engine Harness Connector for Open" .
5. Measure resistance between cavity A and C , and again between cavity A and B of the sensor connector. See Figure "Oil Level Sensor" .
   1. If either reading is less than 10 Ω, that wire is shorted to the sensor return E-15. Repair the short or replace the harness. Verify the repair. Refer to "74.4.4 Verify Repairs" .
   2. If both readings are greater than 10 Ω, replace the sensor. Verify the repair. Refer to "74.4.4 Verify Repairs" .

Section 74.4.3
Check Engine Harness Connector for Open

Perform the following steps to check for open: ‪

1. Unplug the Engine Harness connector at the ECM/ECU.
2. Measure resistance with the jumper still plugged in, between cavity E-21 and E-12. See Figure "Oil Level Sensor" .
   1. If the reading is greater than 10 Ω, either the E-12 or E-21 wire is open. Repair the open or replace the harness. Verify the repair. Refer to "74.4.4 Verify Repairs" .
   2. If the reading is greater than 10 Ω, replace the sensor. Verify the repair. Refer to "74.4.4 Verify Repairs" .

Section 74.4.4
Verify Repairs

Follow these steps to verify the repair:‪

1. Plug in all connectors.
2. Start and run the engine for five minutes.
3. Plug in diagnostic tool and read active codes.
   1. If no codes display, troubleshooting is complete. Return the engine to service.
   2. If code 98/4 displays, review the MAS troubleshooting to find the error or contact the DDC Customer Support Center (313–592–5800) for assistance. Refer to "74.4.1 Read Codes" .