Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE

DETAILED FLOW
1. OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred.
>> GO TO 2.
2. CONFIRM THE SYMPTOM
Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.
>> GO TO 3.
3. IDENTIFY THE MALFUNCTIONING SYSTEM WITH SYMPTOM DIAGNOSIS
Use Symptom diagnosis from the symptom inspection result in step 2 and then identify where to start performing the diagnosis based on possible causes and symptoms. Refer to WW-46, "Symptom Table".
>> GO TO 4.
4. PERFORM THE COMPONENT DIAGNOSIS OF THE OF THE APPLICABLE SYSTEM
Perform the diagnosis with Component diagnosis of the applicable system.
>> GO TO 5.
5. REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
>> GO TO 6.
6. FINAL CHECK
Check that malfunctions are not reproduced when obtaining the malfunction information from the customer, referring to the symptom inspection result in step 2.
Are the malfunctions corrected? YES >> Inspection End.
NO >> GO TO 3.
Wiring diagramP0453 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 ...
Diagnosis system (ipdm e/r) (with intelligent key system)
Diagnosis description
Auto active test
Description
In auto active test, the IPDM E/R sends a drive signal to the following
systems to check their operation.
Front wiper (lo, hi)
Parking lamp
License plate lamp
Tail lamp
Front fog lamp (if equipped)
Headlamp (LO, HI)
A/C compress ...
P0461 Fuel level sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0461 is displayed with DTC UXXXX, first perform the trouble
diagnosis for DTC UXXXX.
If DTC P0461 is displayed with DTC P0607, first perform the trouble
diagnosis for DTC P0607. Refer
to EC-350, "DTC Logic".
Driving long distan ...