


How to Follow Test Groups in Trouble DiagnosisBasic inspection
Diagnosis and repair workflow
Workflow
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW CUSTOMER
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2.SYMPTOM CHECK
Verify symptoms.
...
P0453 EVAP Control system pressure sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0453
EVAP SYS PRES SEN
(Evaporative emission system
pressure sensor/switch high)
An excessively high voltage from the
sensor is ...
Parking brake switch signal circuit
Component function check
1.Check parking brake switch operation
Check that brake warning lamp in combination meter turns on/off when parking
brake is actuated.
Is the inspection result normal?
Yes >> inspection end.
No >> proceed to diagnosis procedure. Refer to mwi-60, " ...