Toyota Tacoma manuals

Toyota Corolla Repair Manual: Dtc check/clear

Notice

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1. Check dtc (using the obd ii scan tool or handheld tester)

  1. Connect the obd ii scan tool or handheld tester to the dlc3.
  2.  turn the ignition switch on.
  3.  use the obd ii scan tool or the handheld tester to check the dtcs and freeze frame data and then write them down. If you need help with the obd ii scan tool, refer to the scan tools instruction book.

    If there is no dtc in the normal mode, check the pending fault code using the continuous test results function on the obd ii scan tool or the handheld tester.

  4.   to confirm the details of the dtcs.

Notice

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2. Clear dtc (using the obd ii scan tool or handheld tester)

  1. Connect the obd ii scan tool or the handheld tester to the dlc3.
  2.  turn the ignition switch on.Operate the obd ii scan tool or the handheld tester to erase the codes. All the dtcs and freeze frame data will be erased. (See the obd ii scan tools instruction book for operating instructions.)

3. Clear dtc (not using the obd ii scan tool or hand held tester)

  1. Disconnect the battery terminal or remove the efi fuse from the engine room r/b for more than 60 seconds.
Check dlc3
The vehicles ecm uses the iso 91412 for communication protocol. The terminal arrangement of the dlc3 complies with sae j1962 and matches the iso 91412 format. Hint: if the display shows una ...

Check mode procedure
Hint: handheld tester only: compared to the normal mode, the check mode has more sensing ability to detect malfunctions. Furthermore, the same diagnostic items which are detected in the normal mo ...

Other materials:

Onvehicle inspection
1. Check cooling fan operation with low temperature (below 83 c (181 f)) Turn the ignition switch on.  check that the cooling fan stops. Hint: if not, check the cooling fan relay and water temperature sensor, and check for separated connector or severed wire between the cooling fan ...

Disposal
Hint: when scrapping vehicles epuipped with a seat belt pretensioner or disposing of a front seat outer belt (with seat belt pretensioner) always first active the seat belt pretensioner in accordance with the procedure described below. If any abnormality occurs in the seat belt pretensioner o ...

For vehicles equipped with mobile communication system
Install an antenna as far as possible away from the ecu and sensors of the vehicles electronic systems.  install an antenna feeder at least 20 cm (7.87 In.) Away from the ecu and sensors of the vehicles electronic systems. For details of the ecu and sensors locations, refer t ...

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