DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
DETAILED FLOW
1.INTERVIEW FROM THE CUSTOMER
Clarify customer complaints before inspection. First of all, perform an interview utilizing DLN-32, "Diagnostic Work Sheet" and reproduce symptoms as well as fully understand it. Ask customer about his/her complaints carefully. Check symptoms by driving vehicle with customer, if necessary.
CAUTION: Customers are not professional. Never guess easily like “maybe the customer means that...,” or “maybe the customer mentions this symptom”. >> GO TO 2.
2.CHECK SYMPTOM
Reproduce the symptom that is indicated by the customer, based on the information from the customer obtained by interview. Also check that the symptom is not caused by protection function. Refer to DLN-22, "Protection Function".
CAUTION: When the symptom is caused by normal operation, fully inspect each portion and obtain the understanding of customer that the symptom is not caused by a malfunction.
>> GO TO 3.
3.PERFORM SELF-DIAGNOSIS
With CONSULT
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is any DTC detected? YES >> Record or print self-diagnosis results. GO TO 4.
NO >> GO TO 6.
4.RECHECK SYMPTOM
With CONSULT
NOTE: If some DTCs are detected at the same time, determine the order for performing the diagnosis based on DLN- 22, "DTC Inspection Priority Chart". Is any DTC detected? YES >> GO TO 5.
NO >> Check harness and connectors based on the information obtained by interview. Refer to GI-41, "Intermittent Incident".
5.REPAIR OR REPLACE ERROR-DETECTED PARTS
>> GO TO 7.
6.IDENTIFY ERROR-DETECTED SYSTEM BY SYMPTOM DIAGNOSIS
Estimate error-detected system based on symptom diagnosis and perform inspection.
Can the error-detected system be identified?
YES >> GO TO 7.
NO >> Check harness and connectors based on the information obtained by interview. Refer to GI-41, "Intermittent Incident".
7.FINAL CHECK
With CONSULT
Is the symptom reproduced? YES >> GO TO 3.
NO >> INSPECTION END
Diagnostic Work Sheet
Description
Interview sheet sample
ADDITIONAL SERVICE WHEN REPLACING AWD CONTROL UNIT
Description
When replacing AWD control unit, unit characteristics writing is required.
Work Procedure
1.PERFORM WRITING UNIT CHARACTERISTICS
Perform writing unit characteristics of electric controlled coupling.
>> Refer to DLN-35, "Work Procedure".
UNIT CHARACTERISTICS WRITING
Description
When replacing AWD control unit, rear final drive assembly and/or electric controlled coupling, unit characteristics of electric controlled coupling writing is required.
Work Procedure
1.UNIT CHARACTERISTICS WRITING
With CONSULT
NOTE: Unit characteristics is 12-digit alphanumeric.
>> WORK END
Active trace control
This system senses driving based on the driver’s
steering and acceleration/braking patterns, and
controls brake pressure at individual wheels to
aid tracing at corners and help smooth vehicle
response.
The Active Trace Control can be set to ON (enabled)
or OFF (disabled) through the Vehicl ...
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-46534)
Trim Tool Set
Removing trim components
...
Vehicle jerks during
Description
The vehicle jerks when VDC function, TCS function, ABS function, EBD
function, Brake limited slip differential
(BLSD) function, Brake assist function, hill start assist function or Brake
force distribution function operates.
Diagnosis Procedure
1.CHECK SYMPTOM
Check that the veh ...