DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P0448 | VENT CONTROL VALVE (Evaporative emission system vent control circuit shorted) | EVAP canister vent control valve remains closed under specified driving conditions. |
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DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
Never exceed 3 minutes.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected? YES >> Proceed to EC-306, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK RUBBER TUBE
Is the inspection result normal? YES >> GO TO 2.
NO >> Clean rubber tube using an air blower.
2.CHECK EVAP CANISTER VENT CONTROL VALVE
Check the EVAP canister vent control valve. Refer to EC-307, "Component Inspection".
Is the inspection result normal? YES >> GO TO 3.
NO >> Replace EVAP canister vent control valve. Refer to FL-15, "Removal and Installation".
3.CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Does water drain from EVAP canister? YES >> GO TO 4.
NO >> GO TO 6.
4.CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached.
The weight should be less than 2.1 kg (4.6 lb).
Is the inspection result normal? YES >> GO TO 6.
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
>> Repair hose or replace EVAP canister. Refer to FL-15, "Removal and Installation".
6.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
Water should not exist.
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace EVAP control system pressure sensor. Refer to FL-15, "Removal and Installation".
7.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check the EVAP control system pressure sensor. Refer to EC-311, "Component Inspection".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace EVAP control system pressure sensor. Refer to FL-15, "Removal and Installation".
Component Inspection
1.CHECK EVAP CANISTER VENT CONTROL VALVE-1
Is it rusted?
YES >> Replace EVAP canister vent control valve. Refer to FL- 15, "Removal and Installation".
NO >> GO TO 2.
2.CHECK EVAP CANISTER VENT CONTROL VALVE-2
With CONSULT
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT
Check air passage continuity and operation delay time under the following conditions
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal? YES >> GO TO 3.
NO >> Replace EVAP canister vent control valve. Refer to FL-15, "Removal and Installation".
3.CHECK EVAP CANISTER VENT CONTROL VALVE-3
With CONSULT
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace EVAP canister vent control valve. Refer to FL-15, "Removal and Installation".
The parking brake release warning
continues sounding, or does not
sound
Description
The parking brake warning buzzer sounds continuously during vehicle
travel though the parking brake is
released.
The parking brake warning buzzer does not sound at all even though
driving the vehicle with the parking
brake applied.
Diagnosis procedure
1.Check parking ...
USB interface (models without Navigation System) (if so equipped)
Connecting a device to the USB input
jack
WARNINGDo not connect, disconnect, or operate the
USB device while driving. Doing so can be
a distraction. If distracted you could lose
control of your vehicle and cause an accident
or serious injury.
CAUTION
Do not force t ...
P1556, P1557 Battery temperature sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P1556 or P1557 is displayed with DTC P0643, first perform the
trouble diagnosis for DTC P0643.
Refer to EC-353, "DTC Logic".
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible caus ...