Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Electronic controlled automatic transaxle / How to proceed with troubleshooting
Toyota Corolla (E120): How to proceed with troubleshooting
The hand–held tester can be used at step 3, 4, 6, 9.
1 Vehicle brought to workshop

2 Customer problem analysis

3 Connect the obd ii scan tool or hand–held tester to dlc3

4 Check and clear dtc and freeze frame data

5 Visual inspection

6 Setting the check mode diagnosis

7 Problem symptom confirmation
Symptom does not occur: go to
step 8
Symptom occur: go to step 9
8 Symptom simulation

9 Dtc check
Dtc is not output: go to step 10
Dtc is output: go to step 18
10 Basic inspection


11 Mechanical system test


12 Hydraulic test


13 Manual shifting test


14 Problem symptoms table chapter 1


15 Problem symptoms table chapter 2


16 Problem symptoms table chapter 3

17 Part inspection
Go to step 20
18 Dtc chart

19 Circuit inspection

20 Identification of problem

21 Repair

22 Confirmation test

End
Other materials:
Inspection procedure
1 Check p squib circuit(airbag sensor assy center – instrument
panel passenger airbag assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the instrument panel ...
Changing gears in the M
position
To enter 10-speed sport
sequential shiftmatic mode, shift
the shift lever to M position.
Gear steps can then be selected
by operating the shift lever or
paddle shift switches, allowing
you to drive in the gear step of
your choosing.
Upshifting
Downshifting
The gear changes once every time
the ...
Inspection procedure
1 Check wire harness(airbag sensor assy center – front seat inner
belt assy lh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat inner belt assy ( ...


