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Toyota Corolla Repair Manual: How to proceed with troubleshooting

1 Vehicle brought in

2 Customer problem analysis check and symptom check

2 Customer problem analysis check and symptom check

3 Problem symptoms table

3 Problem symptoms table

  1. Without applicable symptoms, proceed to a
  2.  with applicable symptoms, proceed to b

4 Perform troubleshooting in the following method, depending on

4 Perform troubleshooting in the following method, depending on malfunction symptom

  1. Terminals of ecu
  2.  inspection
  3.  onvehicle inspection

5 Adjustment, repair or replacement

End

End

Customer problem analysis check

Location

Location

Terminals of ecu

Power door lock control system
Symptom Suspected area All doors are not operated by drivers door key cylinder interlocked with key Door lock control switch Front door lock assy lh ...

Terminals of ecu
1. Inspect integration relay Disconnect the connector and check the continuity of each terminal of the disconnected connector. Standard : If the result is not as specified, the vehicl ...

Other materials:

Ecu power source circuit
Circuit description This circuit provides power to operate the tvip ecu. Wiring diagram Inspection procedure 1 Check fuse (ecub) Remove the fuse from the instrument panel j/b.  check the continuity of the fuse. Standard: continuity 2 Check tvip ecu Disconnect th ...

With an emergency wheel: enlarging the cargo area
Concept The emergency wheel and any related components can be temporarily removed to enlarge the cargo area. Removing the emergency wheel and the storage compartments 1. Remove the cargo floor panel. To do this, pull the cargo floor panel upward directly behind the rear backrests. 2. Open the ratch ...

Circuit description
The d squib circuit consists of the airbag sensor assy center, spiral cable subassy and horn button assy. It causes the srs to deploy when the srs deployment conditions are satisfied. Dtc b0100/13 is recorded when a short is detected in the d squib circuit. Wiring diagram ...

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