Diagnosis and repair work flow
Work flow
Overall sequence
Detailed flow
1.Get information for symptom
Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the “diagnostic work sheet”. (Refer to ec-129, "diagnostic work sheet".) >> Go to 2.
2.Check dtc in ecm
Are any symptoms described and any DTCs detected? Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.
3.Confirm the symptom
Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom. Refer to ec-473, "symptom table" and ec-90, "fail safe".
Diagnosis work sheet is useful to verify the incident.
Verify relation between the symptom and the condition when the symptom is detected.
>> Go to 5.
4.Confirm the symptom
Try to confirm the symptom described by the customer.
Verify relation between the symptom and the condition when the symptom is detected.
>> Go to 6.
5.Perform dtc confirmation procedure
Perform dtc confirmation procedure for the displayed dtc, and then check that dtc is detected again.
If two or more dtcs are detected, refer to ec-93, "dtc inspection priority chart" and determine trouble diagnosis order.
Note:
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIRMATION PROCEDURE.
Is DTC detected? YES >> GO TO 7.
NO >> Check ECO mode system. Refer to DMS-20, "Component Function Check".
6.Detect malfunctioning part by symptom diagnosis
Detect malfunctioning system according to Symptom Diagnosis based on the confirmed symptom in step 4, and determine the trouble diagnosis order based on possible causes and symptoms.
Is the symptom described? YES >> GO TO 7.
NO >> Monitor input data from related sensors or check voltage of related ECM terminals using CONSULT.
Refer to EC-77, "Reference Value".
7.Detect malfunctioning part by diagnosis procedure
Inspect according to Diagnosis Procedure of the system.
Is a malfunctioning part detected? YES >> GO TO 8.
NO >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
8.Repair or replace the malfunctioning part
>> Go to 9.
9.Final check
When DTC was detected in step 3, perform DTC CONFIRMATION PROCEDURE or Component Function Check again, and then check that the malfunction have been completely repaired.
When symptom was described from the customer, refer to confirmed symptom in step 4 or 5, and check that the symptom is not detected.
Is DTC detected and does symptom remain? YES-1 >> DTC is detected: GO TO 7.
YES-2 >> Symptom remains: GO TO 4.
NO >> Before returning the vehicle to the customer, always erase DTC.
Audible reminders
Brake pad wear warning
The disc brake pads have audible wear warnings.
When a disc brake pad requires replacement, it
makes a high pitched scraping sound when the
vehicle is in motion, whether or not the brake
pedal is depressed. Have the brakes checked as
soon as possible if the warning sou ...
Brake pedal
Exploded View
WITHOUT BRAKE PEDAL POSITION SWITCH
Snap pin
Brake pedal assembly
Brake pedal pad
Stop lamp switch
Clip
Clevis pin
Apply multi-purpose grease.
WITH BRAKE PEDAL POSITION SWITCH
Snap pin
Brake pedal assembly
Brake pedal pad
Brake pedal position switch
...
P1148 Closed loop control
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to
A/F sensor 1.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible ca ...