7B-12 AUTOMATIC TRANSMISSION (4 A/T)
Diagnosis
This vehicle is equipped with an electronic transmission control system, which controls the automatic shift up
and shift down timing, etc. suitably to vehicle driving conditions.
When diagnosing a trouble in the transmission including this system, follow “AUTOMATIC TRANSMISSION
DIAGNOSTIC FLOW TABLE” given below to obtain correct result smoothly.
Automatic Transmission Diagnostic Flow Table
NOTE:
For the details of each step, refer to the following pages.
Step Action Yes No
1 Customer Complaint Analysis
1) Perform customer complaint analysis refer-
ring to the following page.
Was customer complaint analysis performed
according to instruction on the following page?
Go to Step 2. Perform customer com-
plaint analysis.
2 Diagnostic Trouble Code (DTC) Check, Record
and Clearance
1) Check for DTC referring to the following
page.
Is there any DTC(s)?
1) Print DTC or write it
down and clear it by
referring to “DTC
CLEARANCE” in this
section.
2) Go to Step 3.
Go to Step 4.
3 Visual Inspection
1) Perform visual inspection referring to the fol-
lowing page.
Is there any faulty condition?
1) Repair or replace mal-
function part.
2) Go to Step 11.
Go to Step 5.
4 Visual Inspection
1) Perform visual inspection referring to the fol-
lowing page.
Is there any faulty condition?
Go to Step 8.
5 Trouble Symptom Confirmation
1) Confirm trouble symptom referring to the fol-
lowing page.
Is trouble symptom identified?
Go to Step 6. Go to Step 7.
6 Rechecking and Record of DTC.
1) Recheck for DTC referring to “DTC CHECK”
in this section.
Is there any DTC(s)?
Go to Step 9. Go to Step 8.
7 Rechecking and Record of DTC.
1) Recheck for DTC referring to “DTC CHECK”
in this section.
Is there any DTC(s)?
Go to Step 9. Go to Step 10.
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