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:
Circuit description
The throttle position sensor is mounted in the throttle body and
detects the throttle valve opening angle.
When the throttle valve is fully closed, a voltage of approximately
0.3 To 1.0 V is applied to terminal vta of the ecm. The voltage
applied to terminal vta of the ecm increases in pro ...
Glossary of sae and toyota terms
This glossary lists all sae–j1930 terms and abbreviations used in this manual
in compliance with sae recommendations,
as well as their toyota equivalents.
...
Circuit description
When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in
high concentrations. If this hc
concentration is high enough, there could be an increase in exhaust emissions
levels. High concentrations
of hc passing through the catalyst also cause to temperature of the catalyst to ...