Toyota Corolla Repair Manual: How to proceed with troubleshooting
1 Vehicle brought to workshop
2 Customer problem analysis
3 Check and clear dtcs and freeze frame data
4 Problem symptom confirmation
Symptom does not occur: go to
step 5
Symptom occurs: go to step 6
5 Symptom simulation
6 Dtc check
There is no output: go to step 7
There is output: go to step 8
7 Problem symptoms table
Check for fluid leakage and go
to step 10
8 Dtc chart
9 Circuit inspection
Hint
: when 2 or more dtc’s are recorded, and the problem is not identified, perform circuit inspection of the other dtc’s.
10 Identification of problem
11 Repair
12 Comfirmation test
End
Hint
: step 3, 6, 9, 12: diagnostic steps permitting the use of the hand–held tester.
Fail safe function:
when a failure occurs in the abs system, the abs warning light is lit and the abs operation is prohibited.
In addition to this, when the failure which disables the ebd operation occurs, the brake warning light is lit as well and the ebd operation is prohibited.
Other materials:
On–vehicle inspection
1. Horn button assy (vehicles not involved in
collision)
Check the diagnostic system .
visually check the following item with the horn button assy
(with airbag) installed in the vehicle.
Check cuts, minute cracks or marked discoloration on the
horn button assy top surface and in the ...
Starting the engine
1 Check that the parking brake is set.
► Vehicles without a multi-information display
2 Continuously variable transmission: Check that the shift lever is set in P.
Firmly depress the brake pedal.
Manual transmission: Check that the shift lever is set in N. Firmly depress the
clutch peda ...
Steering column
Service data
Torque specification
Power steering
Service data
Torque specification
: For use without sst ...