DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0451 | EVAP SYS PRES SEN (Evaporative emission system pressure sensor/switch range/performance) | ECM detects a sloshing signal from the EVAP control system pressure sensor |
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
NOTE: Never remove fuel filler cap during DTC confirmation procedure.
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
With CONSULT>>GO TO 2.
Without CONSULT>>GO TO 5.
2.PERFORM DTC CONFIRMATION PROCEDURE-1
With CONSULT
NOTE: Do not depress accelerator pedal even slightly.
Is 1st trip DTC detected? YES >> Proceed to EC-328, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
NOTE: It will take at most 2 hours until “OFF” of “EVAP DIAG READY” changes to “ON”.
NOTE: Never turn ignition switch ON during 90 minutes.
Which is displayed on CONSULT? CMPLT>> GO TO 4.
YET >> 1. Perform DTC CONFIRMATION PROCEDURE again.
2. GO TO 1.
4.PERFORM DTC CONFIRMATION PROCEDURE-3
With CONSULT
Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Proceed to EC-328, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM DTC CONFIRMATION PROCEDURE-4
With GST
NOTE: Do not depress accelerator pedal even slightly.
Is 1st trip DTC detected? YES >> Proceed to EC-328, "Diagnosis Procedure".
NO >> GO TO 6.
6.PERFORM DTC CONFIRMATION PROCEDURE-5
With GST
NOTE: Never turn ignition switch ON during 90 minutes.
Is 1st trip DTC detected? YES >> Proceed to EC-328, "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 EVAP CONTROL SYSTEM PRESSURE SENSOR
Check the EVAP control system pressure sensor. Refer to EC-330, "Component Inspection".
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".
7.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".
DTC/circuit diagnosis
U0428 STEERING ANGLE SENSOR
DTC Logic
DTC DETECTION LOGIC
CONSULT Display
DTC Detection Condition
Possible Cause
ST ANG SEN CALIB
[U0428]
The neutral position adjustment of the steering
angle sensor is incomplete.
Adjust neutral position of the steeri ...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Trouble Diagnosis Flow Chart
Trouble Diagnosis Procedure
INTERVIEW WITH CUSTOMER
Interview with the customer is important to detect the root cause of CAN
communication system errors and to
understand vehicle condition and symptoms for proper trouble diagnosis ...
Body side trim
Exploded View
Front pillar finisher
Front body side welt
Center pillar upper finisher
Rear body side welt
Rear kicking plate
Seat belt cover
Center pillar lower finisher
Front kicking plate
Dash side finisher
Pawl
Clip
Front
FRONT PILLAR FINISHER
...