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:
Inspection procedure
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the horn button assy
and the airbag sensor assy center.
for the orange c ...
Overhaul
Hint:
installation is in the reverse order of the removal. But the
installation is indicated only when it has a
point.
In the rh side, work in the same procedure as in the lh side.
1. Remove front armrest assy lh
Using a screwdriver, remove the front armrest.
Hint:
tape the ...
Replacement
1. Work for preventing gasoline from spilling out
2. Remove engine under cover rh
3. Drain coolant
4. Remove front wheel rh
5. Remove cylinder head cover no.2
Remove the 2 nuts, 2 clips and cylinder head cover.
6. Remove air cleaner hose no.1
loosen the 2 air cleaner hose ...
