Series 60 DDEC V Troubleshooting – Section 53.2 Troubleshooting Flash Code 51, PID 351/FMI 3

Section 53.2
Troubleshooting Flash Code 51, PID 351/FMI 3

Possible causes are an open wire or a failed sensor.‪

Section 53.2.1
Check for Codes

Follow these steps to check for codes:‪

1. Unplug coding sensor.
2. Insert jumper wire between #1 and #2 of the sensor connector.
3. Start and run engine for six minutes.
   1. If code 351/3 displays, refer to "53.2.2 Check for Open" .
   2. If code 351/4 displays, go to step 4 .
4. Check the connectors for damaged, bent or broken pins. See Figure "TCI Sensor and Connector" .
   

   Figure 1. TCI Sensor and Connector

   1. If damaged pins are found, repair the connector and test. Refer to "53.2.2.1 Verify Procedure" .
   2. If no damaged pins are found, replace the sensor (see Figure "Turbo Compressor In Temperature Sensor" ). Then, refer to "53.2.2.1 Verify Procedure" .
   

   Figure 2. Turbo Compressor In Temperature Sensor

Section 53.2.2
Check for Open

The steps that brought you to this procedure indicate either the signal wire or return is open. Follow these steps to check for open: ‪

1. If code 351 displays, check cavity V–27 at the VIH connector.
2. Is the wire open?
   1. If the wire was open, repair it and refer to "53.2.2.1 Verify Procedure" .
   2. If the wire was not open, replace the TCIT Sensor (see Figure "TCI Sensor and Connector" ). Then refer to "53.2.2.1 Verify Procedure" .

Section 53.2.2.1
Verify Procedure

‪

Follow these steps to verify the procedure.‪

1. Reconnect all connectors.
2. Start and run the engine.
3. Check for codes.
   1. If code 351 displays, try a test ECM/ECU programmed for EGR.
   2. If no codes display, the procedure is finished.
   3. If codes other than 351 display, troubleshoot those codes.