P0453
DTC P0453: FTP Sensor Circuit High Voltage1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch OFF.
4. Remove the fuel fill cap.
5. Turn the ignition switch ON (II).
6. Check the FTP SENSOR in the DATA LIST with the HDS.
Is about 7.3 kPa (2.16 in. Hg, 55 mmHg), or 4.7 V, or more indicated?
YES - Go to step 10.
NO - Go to step 7.
7. Install the fuel fill cap.
8. Start the engine.
9. Monitor the OBD STATUS for DTC P0453 in the DTCs MENU with the HDS.
Does the screen indicate FAILED?
YES - Go to step 10.
NO - If the screen indicates PASSED, intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the FTP sensor and ECM/PCM. if the screen indicates NOT COMPLETED, go to step 6 and recheck.
10. Turn the ignition switch OFF.
11. Disconnect the FTP sensor 3P connector.
12. Turn the ignition switch ON (II).
13. Measure voltage between FTP sensor 3P connector terminal No.2 and body ground.
Is there about 5 V?
YES - Go to step 14.
NO - Go to step 15.
14. Measure voltage between FTP sensor 3P connector terminals No.1 and No.3.
Is there about 5 V?
YES - Go to step 20.
NO - Repair open in the wire between the ECM/PCM (A1) and the FTP sensor, then go to step 23.
15. Turn the ignition switch OFF.
16. Jump the SCS line with the HDS.
17. Disconnect ECM/PCM connector A (31P).
18. Connect FTP sensor connector terminal No.2 to body ground with a jumper wire.
19. Check for continuity between ECM/PCM connector terminal A29 and body ground.
Is there continuity?
YES - Go to step 29.
NO- Repair open in the wire between the ECM/PCM (A29) and the FTP sensor, then go to step 22.
20. Turn the ignition switch OFF.
21. Replace the FTP sensor.
22. Reconnect ECM/PCM connector A (31P).
23. Reconnect the FTP sensor 3P connector.
24. Turn the ignition switch ON (II).
25. Reset the ECM/PCM with the HDS.
26. Do the ECM/PCM idle learn procedure.
27. Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCS indicated?
YES - If DTC P0453 is indicated, check for poor connections or loose terminals at the FTP sensor and the ECM/PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO - Go to step 28.
28. Monitor the OBD STATUS for DTC P0453 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at the FTP sensor and the ECM/PCM, then go to step 1. If the screen indicates NOT COMPLETED, go to step 26 and recheck.
29. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM.
30. Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC P0453 is indicated, check for poor connections or loose terminals at the FTP sensor and the ECM/PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM.