DTC P0452 (2.4 L Engine) (2017 2018 2019)
DTC P0452 : FTP Sensor Circuit Low Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information .
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P0452 FTP Sensor Circuit Low Voltage |
DTC (PGM-FI)
- EVAP system check
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Turn the vehicle to the OFF (LOCK) mode.
-4. Insert the emergency fuel funnel into the fuel filler neck .
NOTE: The emergency fuel funnel is stored under the cargo lid.
-5. Check the parameter (s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit FTP SENSOR Less than 0.3 V Do the current condition (s) match the malfunction threshold?
YES
Go to step 3.
NO
Go to step 2.
- Problem verification
-1. Remove the emergency fuel funnel from the fuel filler neck.
-2. Start the engine, and let it idle.
-3. Monitor the OBD STATUS for DTC P0452 in the DTCs MENU with the HDS.
DTC Description OBD STATUS P0452 FTP Sensor Circuit Low Voltage Does the HDS indicate FAILED?
YES
The failure is duplicated. Go to step 3.
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 on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot . If the HDS indicates NOT COMPLETED, keep idling until a result comes on.
- Determine possible failure area (PTANK line, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
FTP sensor 3P connector -3. Turn the vehicle to the ON mode.
-4. Check the parameter (s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit FTP SENSOR Less than 0.3 V Do the current condition (s) match the malfunction threshold?
YES
Go to step 4.
NO
Go to step 5.
- Shorted wire check (PTANK line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Jump the SCS line with the HDS, and wait more than 1 minute.
-3. Disconnect the following connector.
PCM connector A (51P) -4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode FTP sensor 3P connector: disconnected PCM connector A (51P): disconnected Test point 1 FTP sensor 3P connector (female terminals) No. 2: Test point 2 Body ground Is there continuity?
YES
Repair a short in the PTANK wire between the PCM (A42) and the FTP sensor.
NO
The PTANK wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .
- Determine possible failure area (FTP sensor, others)
-1. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode FTP sensor 3P connector: disconnected Test point 1 FTP sensor 3P connector (female terminals) No. 3: Test point 2 Body ground Is there about 5.0 V?
YES
NO
Go to step 6.
- Open wire check (VCC6 line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Jump the SCS line with the HDS, and wait more than 1 minute.
-3. Disconnect the following connector.
PCM connector A (51P) -4. Connect terminals A and B with a jumper wire.
Terminal A FTP sensor 3P connector (female terminals) No. 3: Terminal B Body ground -5. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode FTP sensor 3P connector: disconnected FTP sensor 3P connector No. 3: jumped to body ground PCM connector A (51P): disconnected Test point 1 PCM connector A (51P) No. 29 Test point 2 Body ground Is there continuity?
YES
The VCC6 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .
NO
Repair an open in the VCC6 wire between the PCM (A29) and the FTP sensor.