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Toyota Corolla Repair Manual: How to proceed with troubleshooting

Toyota Corolla Repair Manual / Diagnostics / ABS with EBD system / How to proceed with troubleshooting

1 Vehicle brought to workshop

2 Customer problem analysis

2 Customer problem analysis

3 Check and clear dtcs and freeze frame data

3 Check and clear dtcs and freeze frame data

4 Problem symptom confirmation

4 Problem symptom confirmation

step 5Symptom does not occur: go to step 5

5 Symptom simulationSymptom occurs: go to step 6

5 Symptom simulation

6 Dtc check

6 Dtc check

output: go to step 7

There is no output: go to step 7

7 Problem symptoms tableThere is output: go to step 8

7 Problem symptoms table

to step 10Check for fluid leakage and go to step 10

8 Dtc chart

9 Circuit inspection

9 Circuit inspection

Hint

: when 2 or more dtcs are recorded, and the problem is not identified, perform circuit inspection of the other dtcs.

10 Identification of problem

10 Identification of problem

11 Repair

11 Repair

12 Comfirmation test

12 Comfirmation test

End

End

Hint

: step 3, 6, 9, 12: diagnostic steps permitting the use of the handheld 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.

ABS with EBD system
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Customer problem analysis check
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Other materials:

Inspection procedure
1 Check side squib(lh) circuit(airbag sensor assy center front seat airbag 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 airbag assy (lh ...

Body panel sealing areas
Be sure to apply body sealer to the body panel joints and door edges (tip of outer panel folded part), etc., To waterproof and rustproof them. Hint:  apply degreasing agent to a clean cloth and clean the sealer application areas. After removing the applied spot sealer from the se ...

Circuit description
Refer to dtc p0130 Dtc no Dtc detection condition Trouble area P0136 The following condition (a) or (b) continues for 300 seconds or more: During driving with the engine warmed up, heated oxygen sensor o tp t does not change output change. he ...

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