DTC Troubleshooting: P0450
DTC P0450: FTP Sensor Out of Range
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P0450 FTP Sensor Out of Range
    

1.
EVAP system check 1:

EVAP system check 1
?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 in the trunk tool box.

?5.
Turn the vehicle to the ON mode.

?6.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
FTP Sensor
More than 6
kPa
    

Do the current condition(s) match the malfunction threshold?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Go to step 2.
2.
EVAP system check 2:

EVAP system check 2
?1.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
FTP Sensor
Less than -5
kPa
    

Do the current condition(s) match the malfunction threshold?

     
YES
     
     
     
Go to step 7.
     
NO
     
     
     
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.?
3.
Determine possible failure area (FTP sensor, others):

Determine possible failure area (FTP sensor, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
FTP sensor 3P connector

?3.
Connect terminals A and B with a jumper wire.
Terminal A
FTP sensor 3P connector (female terminals) No. 1:
Terminal B
FTP sensor 3P connector (female terminals) No. 2:


?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
More than 6
kPa
    

Do the current condition(s) match the malfunction threshold?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
4.
Determine possible failure area (V V GND08 line, others):

Determine possible failure area (V V GND08 line, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Remove the jumper wire from the FTP sensor 3P connector.

?3.
Turn the vehicle to the ON mode.

?4.
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. 1:
Test point 2
FTP sensor 3P connector (female terminals) No. 3:


Is there about 5.0 V?

     
YES
     
     
     
Go to step 5.
     
NO
     
     
     
Go to step 6.
5.
Open wire check (PTANK line):

Open 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 No. 2 (58P)

?4.
Connect terminals A and B with a jumper wire.
Terminal A
FTP sensor 3P connector (female terminals) No. 2:
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. 2: jumped to body ground
PCM connector No. 2 (58P): disconnected
Test point 1
PCM connector No. 2 (58P) No. 39
Test point 2
Body ground

Is there 1.0 ? or less?

     
YES
     
     
     
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.?
     
NO
     
     
     
Repair an open in the PTANK wire between PCM connector No. 2 terminal No. 39 and the FTP sensor.?
6.
Open wire check (V V GND08 line):

Open wire check (V V GND08 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 No. 2 (58P)

?4.
Connect terminals A and B with a jumper wire.
Terminal A
FTP sensor 3P connector (female terminals) No. 1:
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. 1: jumped to body ground
PCM connector No. 2 (58P): disconnected
Test point 1
PCM connector No. 2 (58P) No. 42
Test point 2
Body ground

Is there 1.0 ? or less?

     
YES
     
     
     
The V V GND08 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 V V GND08 wire between PCM connector No. 2 terminal No. 42 and the FTP sensor.?
7.
Determine possible failure area (PTANK line, others):

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 -5
kPa
    

Do the current condition(s) match the malfunction threshold?

     
YES
     
     
     
Go to step 8.
     
NO
     
     
     
Go to step 9.
8.
Shorted wire check (PTANK line):

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 No. 2 (58P)

?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
FTP sensor 3P connector: disconnected
 
PCM connector No. 2 (58P): disconnected
Test point 1
FTP sensor 3P connector (female terminals) No. 2:
Test point 2
Body ground


Is there 1 M? or more?

     
YES
     
     
     
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.?
     
NO
     
     
     
Repair a short in the PTANK wire between PCM connector No. 2 terminal No. 39 and the FTP sensor.?
9.
Determine possible failure area (FTP sensor, others):

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 10.
10.
Open wire check (V V 5VG1 line):

Open wire check (V V 5VG1 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 No. 2 (58P)

?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 No. 2 (58P): disconnected
Test point 1
PCM connector No. 2 (58P) No. 41
Test point 2
Body ground

Is there 1.0 ? or less?

     
YES
     
     
     
The V V 5VG1 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 V V 5VG1 wire between PCM connector No. 2 terminal No. 41 and the FTP sensor.?