P0192

DTC P0192: Fuel Rail Pressure Sensor Circuit Low Voltage

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

1. Turn the ignition switch ON (II).
2. Check the FUEL RAIL PRESSURE SENSOR in the DATA LIST with the HDS.

Is there about 0.23 V or less?

YES - Go to step 3.

NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the fuel rail pressure sensor and the PCM.

3. Turn the ignition switch OFF.
4. Disconnect the fuel rail pressure sensor 3P connector.
5. Turn the ignition switch ON (II).
6. Check the FUEL RAIL PRESSURE SENSOR in the DATA LIST with the HDS.

Is there about 0.23 V or less?

YES - Go to step 8.

NO - Go to step 7.

7. Measure voltage between fuel rail pressure sensor 3P connector terminals No. 1 and No. 3.






Is there about 5 V?

YES - Go to step 16.

NO - Go to step 12.

8. Turn the ignition switch OFF.
9. Jump the SCS line with the HDS.
10. Disconnect PCM connector C (44P).
11. Check for continuity between fuel rail pressure sensor 3P connector terminal No. 2 and body ground.






Is there continuity?

YES - Repair short in the wire between the PCM (C10) and the fuel rail pressure sensor, then go to step 18.

NO - Go to step 23.

12. Turn the ignition switch OFF.
13. Jump the SCS line with the HDS.
14. Disconnect PCM connector A (44P).
15. Check for continuity between fuel rail pressure sensor 3P connector terminal No. 1 and PCM connector terminal A19.






Is there continuity?

YES - Repair open in the wire between the PCM (A19) and the fuel rail pressure sensor, then go to step 18.

NO - Go to step 23.

16. Turn the ignition switch OFF.
17. Replace the fuel rail pressure sensor.
18. Reconnect all connectors.
19. Turn the ignition switch ON (II).
20. Reset the PCM with the HDS.
21. Do the PCM idle learn procedure,
22. Check for Temporary DTCs or DTCs with the HDS.

Is DTCP0192 indicated?

YES - Check for poor connections or loose terminals at the fuel rail pressure sensor and the PCM, then go to step 1.

NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.

23. Reconnect all connectors.
24. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
25. Check for Temporary DTCs or DTCs with the HDS.

Is DTCP0192 indicated?

YES - Check for poor connections or loose terminals at the fuel rail pressure sensor and the PCM. If the PCM was updated, substitute a known-good PCM, then recheck. If the PCM was substituted, go to step 1.

NO - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM, If any other Temporary DTCs or DTCs are indicated, go to the indicated DTCs troubleshooting.