Component Function Check
1.CHECK REFRIGERANT PRESSURE SENSOR FUNCTION

Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-482, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY

Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK REFRIGERANT 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.
3.CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT

Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT

Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to GI-41, "Intermittent Incident".
Is the inspection result normal? YES >> Replace refrigerant pressure sensor. Refer to HAC-108, "Removal and Installation" (with automatic air conditioner) or HAC-183, "Removal and Installation" (with manual air conditioner).
NO >> Repair or replace error-detected parts.
On board refueling vapor recovery (ORVR)
Sensor power supply2 circuitiPod®* player operation without Navigation System (if so equipped)
iPod®* player operation without Navigation System
Connecting iPod
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.
& ...
Steering switch
Description
When one of the steering switches is pushed, the resistance in the steering
switch changes the signal to
identify which button is controlling the information display.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to MWI-32, "Wiring Diagram".
1.CHECK STE ...
P0453 EVAP control system pressure sensor
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.
...