DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0453 | EVAP SYS PRES SEN (Evaporative emission system pressure sensor/switch high) | An excessively high voltage from the sensor is sent to ECM. |
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION: Always perform test at a temperature of 5°C (41°F) or more.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
With GST
Is 1st trip DTC detected? YES >> Proceed to EC-335, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
Water should not exist.
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness connector.
2.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts
4.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
6.CHECK RUBBER TUBE
1. Disconnect rubber tube connected to EVAP canister vent control valve.
2. Check the rubber tube for clogging.
Is the inspection result normal? YES >> GO TO 7.
NO >> Clean the rubber tube using an air blower, repair or replace rubber tube.
7.CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-321, "Component Inspection".
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace EVAP canister vent control valve. Refer to FL-21, "Removal and Installation".
8.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-337, "Component Inspection".
Is the inspection result normal? YES >> GO TO 9.
NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".
9.CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Does water drain from EVAP canister? YES >> GO TO 10.
NO >> GO TO 12.
10.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 1.9 kg (4.2 lb).
Is the inspection result normal? YES >> GO TO 12.
NO >> GO TO 11.
11.DETECT MALFUNCTIONING PART
Check the following.
>> Repair hose or replace EVAP canister. Refer to FL-19, "Removal and Installation".
12.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Always replace O-ring with a new one.
CAUTION:
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".
P0171 fuel injection system function
DTC Description
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture
ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedback signal from the
A/F sensors 1. The ECM calculates
the necessary compensation to corr ...
Refrigerant
Description
CONNECTION OF SERVICE TOOLS AND EQUIPMENT
Shut-off valve
A/C service valve
Recovery/recycling/recharging
equipment
Refrigerant container (HFC-134a)
Weight scale
Vacuum pump
Manifold gauge set
Preferred (best) method
Alternative method
&n ...
Symptom diagnosis
AUDIO SYSTEM
Symptom Table
RELATED TO AUDIO
Symptoms
Check items
Probable malfunction location
The disk cannot be removed
Audio unit
Malfunction in audio unit.
Refer to AV-18, "On Board Diagnosis Function".
No sound comes out or the le ...