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:
Source voltage drop
The srs is equipped with a voltage–increase circuit (dc–dc converter) in the
airbag sensor assy center
in case the source voltage drops.
When the battery voltage drops, the voltage–increase circuit (dc–dc converter)
functions to increase the
voltage of the srs to normal voltage.
...
Overhaul
Notice: when installing, coat the parts indicated by the arrow with
power steering fluid or molybdenum disulfide lithium base grease.
1. Precaution
2. Disconnect battery negative terminal
3. Inspect center front wheel
4. Remove horn button assy
5. Remove steering wheel assy
sst 09950–50013 ...
Steering column
Service data
Torque specification
Power steering
Service data
Torque specification
: For use without sst ...