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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:

Pressing power switch does not start system
Wiring diagram Inspection procedure 1 Inspect radio receiver assy(+b, acc, gnd) Check that the continuity between terminals at each condition, as shown in the chart. Standard: Check that the voltage between terminals at each condition, as shown in the chart. Standard: ...

Fuel system
Precaution 1. Before working on fuel system, disconnect negative () terminal cable from battery 2. Do not smoke or work near an open flame when working on fuel system 3. Keep gasoline away from rubber or leather parts 4. Work for prevent gasoline from spilling out Remove the rear sea ...

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 connector between the airbag sensor assy center and the horn button assy.  for the black con ...

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