DTC P0451
DTC P0451 : FTP Sensor Circuit Range/Performance Problem
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information .
- If DTC P2422 is stored at the same time as DTC P0451, troubleshoot DTC P2422 first, then recheck for DTC P0451.
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P0451 FTP Sensor Circuit Range/Performance Problem |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Start the engine, and let it idle for 1 minute.
-4. Monitor the OBD STATUS for DTC P0451 in the DTCs MENU with the HDS.
DTC Description OBD STATUS P0451 FTP Sensor Circuit Range/Performance Problem Does the HDS indicate FAILED?
YES
Replace the FTP sensor , then do the repair verification.
NO
If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the FTP sensor and the PCM. If the HDS indicates NOT COMPLETED, keep idling until a result comes on.
- Repair verification (OBD STATUS check)
-1. Turn the vehicle to the ON mode.
-2. Reset the PCM with the HDS .
Reset PCM
-3. Do the PCM idle learn procedure .
-4. Start the engine, and let it idle for 1 minute.
-5. Monitor the OBD STATUS for DTC P0451 in the DTCs MENU with the HDS.
DTC Description OBD STATUS P0451 FTP Sensor Circuit Range/Performance Problem DTC (PGM-FI)
Does the HDS indicate PASSED, FAILED, or NOT COMPLETED?
PASSED
Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated, go to the indicated DTC's troubleshooting.
FAILED
Go to step 1 and recheck.
NOT COMPLETED
Meet the test conditions, and check the OBD STATUS again.