Toyota Corolla Repair Manual: Dtc check/clear
Notice
:
- if there is no dtc in the normal mode, check the pending fault code using the continuous test results function (mode 7 for sae j1979) on the obd ii scan tool or the hand–held tester.
- Hand–held tester only: when the diagnosis 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 then write them down.
1. Check dtc (using the obd ii scan tool or hand–held tester)
- Connect the obd ii scan tool or hand–held tester to the dlc3.
- turn the ignition switch on.
- use the obd ii scan tool or the hand–held 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 tool’s 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 hand–held tester.
- to confirm the details of the dtcs.
Notice
:
- when simulating a symptom with the obd ii scan tool (excluding hand–held tester) to check the dtcs, use the normal mode. For code on the dtc chart subject to the ”2 trip detection logic”, perform either of the following actions.
- 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 lights up and the dtcs are recorded in the ecm.
- Check the pending fault code using the continuous test results function on the obd ii scan tool.
2. Clear dtc (using the obd ii scan tool or hand–held tester)
- Connect the obd ii scan tool or the hand–held tester to the dlc3.
- turn the ignition switch on.Operate the obd ii scan tool or the hand–held tester to erase the codes. All the dtcs and freeze frame data will be erased. (See the obd ii scan tool’s instruction book for operating instructions.)
3. Clear dtc (not using the obd ii scan tool or hand– held tester)
- Disconnect the battery terminal or remove the efi fuse from the engine room r/b for more than 60 seconds.
Check dlc3
The vehicle’s ecm uses the iso 9141–2 for communication
protocol. The terminal arrangement of the dlc3 complies
with sae j1962 and matches the iso 9141–2 format.
Hint:
if the display shows una ...
Check mode procedure
Hint:
hand–held 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:
Using the storage features
List of storage features
1 Glove box
2 Bottle holders
3 Console box
4 Cup holders
CAUTION
■Items that should not be left in the storage spaces
Do not leave glasses, lighters or spray cans in the storage spaces, as this
may cause the following when cabin temperature becomes high: ...
Check mode procedure
1. Dtc check (check mode)
Hint:
hand–held 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 mode can also be
detected in the check mode.
Procedure for check mod ...
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 connectors between the airbag sensor
assy center and the horn button assy.
release the airbag act ...