Toyota Corolla (E120): Circuit description

The cruise control ecu assy power source supplies power to the actuator and sensors, etc., When terminal gnd and the case of the cruise control ecu assy are grounded.

Wiring diagram

Inspection procedure

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    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 ...

    Inspection procedure
    Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

    On–vehicle inspection
    1. Inspect turn signal flasher relay circuit Disconnect the connector from the turn signal flasher relay and inspect the connector on wire harness side as shown in the chart. Standard: Connect the connector to the turn signal flasher and inspect the wire harness side connector ...