DTC P1458 (2017 2018 2019 2020)
DTC P1458 : FTP Sensor Circuit Range/Performance Problem
- If any of DTCs listed below are indicated at the same time as DTC P1458, troubleshoot those DTCs first, then recheck for P1458.
-
- P0451, P0452, P0453, P1454: FTP sensor
- P2422: EVAP canister vent shut valve
- Do not start the engine during this troubleshooting.
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P1458 FTP Sensor Circuit Range/Performance Problem |
DTC (PGM-FI)
- Fuel level check
-1. Turn the vehicle to the ON mode.
- 2. Note these recorded on-board snapshot parameters with the HDS:
- MAX Value of FTP SENSOR
- MIN Value of FTP SENSOR
- FUEL LEVEL
On-board Snapshot
- 3. Check the FUEL LEVEL in the DATA LIST with the HDS.
Signal Current conditions Values Unit FUEL LEVEL Is the FUEL LEVEL less than it is on the on-board snapshot?
YES
Go to step 2.
NO
Drain the fuel until the FUEL LEVEL is less than it is on the on-board snapshot, then go to step 2.
- Determine possible failure area (FTP sensor, others)
-1. Select the EVAP CVS OFF in the SINGLE SOLENOID with the HDS.
SINGLE SOLENOID
Take a snapshot with the HDS for 3 minutes without starting the engine.
- 3. Check the recorded snapshot parameter with the HDS:
- MAX Value of FTP SENSOR (FINE)
- MIN Value of FTP SENSOR (FINE)
Are the MAX and MIN values of the FTP SENSOR (FINE) within the range of ± 0.67 kPa (0.2 inHg, 5 mmHg)?
YES
Go to step 3.
NO
Go to step 5.
- FTP sensor performance check 1
-1. Check the FTP SENSOR (FINE) in the recorded snapshot with the HDS.
Does it vary 0.067 kPa (0.02 inHg, 0.5 mmHg) or more within 3 seconds?
YES
Go to step 4.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the FTP sensor, the EVAP canister vent shut valve, and the PCM. Also check for a blockage in the EVAP vent hose. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016), or How to Troubleshoot the A/T System (2014 2015) .
- FTP sensor performance check 2
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Remove the FTP sensor.
- 3. Reconnect the following connector.
FTP sensor 3P connector - 4. Turn the vehicle to the ON mode.
- 5. Check the parameter(s) below with the HDS.
Signal Current conditions Values Unit FTP SENSOR (FINE) Does it vary 0.067 kPa (0.02 inHg, 0.5 mmHg) or more within 3 seconds?
YES
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the FTP sensor, the EVAP canister vent shut valve, and the PCM. Also check for a blockage in the EVAP vent hose. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot - Refer to: How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016) .
- Determine possible failure area (EVAP canister vent line, others)
-1. Insert the emergency nozzle into the fuel filler neck.
NOTE: Take the emergency fuel funnel in the cargo area.- 2. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit FTP SENSOR (FINE) More than 0.67 kPa Less than -0.67 kPa Do the current condition(s) match the threshold?
YES
Go to step 6.
NO
Remove the emergency nozzle from the fuel filler neck, then go to step 8.
- FTP sensor vent hose check
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Remove the FTP sensor.
- 3. Reconnect the following connector.
FTP sensor 3P connector - 4. Turn the vehicle to the ON mode.
- 5. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit FTP SENSOR (FINE) More than 0.67 kPa Less than -0.67 kPa Do the current condition(s) match the threshold?
YES
Go to step 7.
NO
Remove the blockage in the FTP sensor vent hose. Replace the hose if needed.
- FTP sensor port visual check
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
FTP sensor 3P connector - 3. Check for a blockage or damage at the FTP sensor ports (EVAP canister side and vent side).
Is there any blockage or damage?
YES
Remove the blockage, and replace the FTP sensor if needed.
NO
- EVAP canister vent shut valve check
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the fresh air hose (A) from the EVAP canister (B), then connect a vacuum pump/gauge to the EVAP canister as shown.
- 3. Turn the vehicle to the ON mode.
- 4. Select the EVAP CVS OFF in the SINGLE SOLENOID with the HDS.
SINGLE SOLENOID
Try to apply vacuum to the valve (not more than 5.3 kPa (1.6 inHg, 40 mmHg)) while checking the FTP SENSOR (FINE) in the DATA LIST with the HDS.
NOTE: To avoid damaging the FTP sensor, do not apply more than 5.3 kPa (1.6 inHg, 40 mmHg) of vacuum.Signal Current conditions Values Unit FTP SENSOR (FINE) Does the valve hold more than 1.3 kPa (0.4 inHg, 10 mmHg) of vacuum?
YES
Replace the EVAP canister vent shut valve .
NO
The EVAP canister vent shut valve is OK. Remove the blockage in the fresh air hose. Replace the hose if needed.