Toyota Corolla (E120): Inspection procedure
1 Check security indicator light
- Set the system in 30 seconds after filliping the security indicator to check if the alarm is triggered.
2 Check glass breakage sensor ecu (glass breakage sensor)
- Check the continuity and voltage of the glass breakage sensor ecu, as shown in the illustration and table.
Standard:
3 Check wire harness (tvip ecu glass breakage sensor ecu)
- Disconnect the tvip ecu and glass breakage sensor ecu connectors.
- check the continuity and between the connectors on the harness side, as shown in the illustration and table.
Standard:
4 Check wire harness (glass breakage sensor ecu body ground)
- Disconnect the glass breakage sensor ecu connector.
- check the continuity between the terminal of the glass breakage sensor ecu connector and the body ground, as shown in the illustration and table.
Standard:
Check and replace tvip ecu
Other materials:
Circuit description
The vehicle speed sensor circuit is sent to cruise control ecu assy as a
vehicle speed signal. For each rotation
of the shaft, the vehicle speed sensor sends a signal through the combination
meter assembly to the
cruise control ecu assy (see the following chart). The cruise control ecu assy
...
LTA (Lane Tracing Assist)
LTA functions
When driving on a road with
clear lane lines with the
dynamic radar cruise control
operating, lane lines and preceding
and surrounding vehicles
are detected using the
front camera and radar sensor,
and the steering wheel is
operated to maintain the vehicle's
lane position.
...
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 j1987 or a hand–held tester to the
vehicle, and read off various data output from the
vehicle†...