Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Terminals of ecu
Toyota Corolla (E120): Terminals of ecu
1. Inspect tvip ecu
- Inspect the ecu–b, dome and ecu–ig fuses.
- disconnect the tvip ecu connector, and the continuity and voltage of check each terminal of the disconnected connector.
Standard:
If the result is not as specified, the vehicle’s side may malfunction.
- Reconnect the tvip ecu connector, and the continuity and voltage of check each terminal of the disconnected connector.
Standard:
If the result is not as specified, the tvip ecu may malfunction.
2. Inspect integration relay
- Disconnect the connector and check the continuity of each terminal of the disconnected connector.
If the result is not as specified, the vehicle’s side may malfunction.
3. Inspect instrument panel j/b (integration relay)
- Inspect the door fuse.
- disconnect the id connector of the instrument panel j/b, and check the continuity of each terminal of the disconnected connectors.
Standard:
If the result is not as specified, the vehicle’s side may malfunction.
Other materials:
Circuit description
Refer to dtc p0115
Dtc no.
Dtc detection condition
Trouble area
P0116
If engine coolant temperature (ect) was between 35 c (95 °F)
and 60 c (140 °F) when starting the engine, and also conditions
(a) and (b) are met:
vehicle has run with acceleration an ...
Check open circuit
For the open circuit in the wire harness in fig. 1, Perform
a resistance check in step (b) or a voltage check in step
(c) to locate the section.
Check the resistance.
Disconnect connectors a and c and measure the
resistance between them.
Resistance: 1 Ω or les ...
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct procedure
as given in these sections.
CAUTION
The engine compartment contains many mechanisms and fluids that may move suddenly,
become hot, or become electrically energized. To avoid death or serious injury,
observe t ...