Toyota Tacoma manuals

Toyota Corolla Repair Manual: Dtc check/clear

1. Dtc check (normal mode)

Notice

: handheld tester only: when the diagnostic system is switched from the normal mode to the check mode, all the dtcs and freeze frame data recorded in the normal mode will be erased. So before switching modes, always check the dtcs and freeze frame data, and note them down.

  1. Checking dtcs using the obd ii scan tool or handheld tester.
  1.  Turn the ignition switch off.
  2.  Connect the obd ii scan tool or handheld tester to dlc3.
  3.  Turn the ignition switch to the on position.
  4.  Use the obd ii scan tool or handheld tester to check the dtcs and freeze frame data and note them down (for operating instructions, see the obd ii scan tools instruction book).
  5.   to confirm the details of the dtcs.

Notice

: when simulating symptoms with an obd ii scan tool (excluding handheld tester) to check the dtcs, use the normal mode. For codes on the dtcs chart subject to 2 trip detection logic, turn the ignition switch off after the symptom is simulated once. Then repeat the simulation process again. When the problem has been simulated twice, the mil is indicated on the instrument panel and dtcs are recorded in the ecm.

2. Dtc clear

  1. When using the obd ii scan tool or handheld tester: clearing the dtcs.
  1.  Connect the obd ii scan tool or handheld tester to the dlc3.
  2. Turn the ignition switch to the on position.
  3. When operating the obd ii scan tool (complying with sae j1978) or handheld tester to erase the codes, the dtcs and freeze frame data will be erased. (See the obd ii scan tools instruction book for operating instructions.)
  1.  when not using the obd ii scan tool or handheld tester: clearing the dtcs.
  1.  Disconnecting the battery terminal or remove the efi and etcs fuses from the engine room j/b for 60 seconds or more.
Diagnosis system
Description  when troubleshooting obd ii vehicles, the only difference from the usual troubleshooting procedure is that you need to connect an obd ii scan tool complying with sae j ...

Check mode procedure
1. Dtc check (check mode) 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 ar ...

Other materials:

Circuit description
The srs warning light is located on the combination meter. When the srs is normal, the srs warning light lights up for approx. 6 Seconds after the ignition switch is turned from the lock position to on position, and then turns off automatically. If there is a malfunction in the srs, the srs ...

Inspection procedure
1 Check door lock When the door does not operate manually, proceed to a.  when the door does not operate via the key, proceed to b. 2 Inspect door lock control switch W/ power window: remove the power window regulator master switch assy.  Inspect the master ...

Circuit description
The rotary solenoid type idle air control (iac) valve is located under the throttle body and intake air bypassing the throttle valve flows into the iac valve through the passage. In this way the intake air volume bypassing the throttle valve is regulated, controls the engine speed. The ...

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