Toyota Corolla (E120): Inspection procedure
1 Check un–lock warning switch assy
- Disconnect the key unlock warning switch connector.
- check the continuity between the terminals of the key unlock warning switch connector, as shown in the illustration and table.
Standard:
2 Check wire harness (tvip ecu unlock warning switch)
- Disconnect the tvip ecu and key unlock warning switch connectors.
- check the continuity between the terminals of the tvip ecu connectors and unlock warning switch connector, as shown in the illustration and table.
Standard:
3 Check wire harness (key unlock warning switch body ground)
- Disconnect the key unlock warning switch connector.
- check the continuity between the terminal of the key unlock warning switch connector and the body ground, as shown in the illustration and table.
Standard:
Check and replace tvip ecu
Other materials:
Replacement
Hint: components:
1. Remove front wheel
2. Remove front axle hub lh nut
sst 09930–00010
3. Separate front stabilizer link assy lh
4. Separate speed sensor front lh (w/ abs)
5. Separate front disc brake caliper assy lh
Remove the 2 bolts, separate the brake caliper assy ...
How to proceed with troubleshooting
The hand–held tester can be used at step 3, 4, 6, 9.
1 Vehicle brought to workshop
2 Customer problem analysis
3 Connect the obd ii scan tool or hand–held tester to dlc3
4 Check and clear dtc and freeze frame data
5 Visual inspection
6 Setting the check mode diagnosis
7 Proble ...
Check and replace ecu
Notice:
start an inspection of the connector from the backside
of the connector on the wire harness side with
the connector connected to the ecu.
When no measurement condition is specified, perform
the inspection with the engine stopped and also
the ignition switch on.
First check the ec ...