Toyota Corolla (E170): Cruise control

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Circuit description
When driving uphill under cruise control, in order to reduce the number of shifting due to on–off overdrive operation and to provide smooth driving, when down shifting in the electronically controlled transmission occurs, a signal to prevent upshift until the end of the uphill slope is sent ...

Have the malfunction repaired immediately. (vehicles with a smart key system)
After taking the specified steps to correct the suspected problem, check that the warning message and light go off. ■Warning buzzer ...

Terminals of ecu
1. Inspect integration relay Disconnect the connector and check the continuity of each terminal of the disconnected connector. Standard : If the result is not as specified, the vehicle’s side may malfunction. Reconnect the connector and check each terminal. Standard: If ...