Toyota Corolla (E120): Circuit description

Hint:

Hint

: there is a case that hand–held tester cannot be used when ecu is abnormal.

Wiring diagram

Inspection procedure

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    Driving support system information display
    ■ Driving support system information Select to display the operational status of the following systems: Dynamic radar cruise control LTA (Lane Tracing Assist) LDA (Lane Departure Alert) ■ Navigation system-linked display (if equipped) Select to display the following navigation system-linked ...

    Anti-glare function
    ► Manual anti-glare inside rear view mirror Reflected light from the headlights of vehicles behind can be reduced by operating the lever. 1 Normal position 2 Anti-glare position ► Auto anti-glare inside rear view mirror Responding to the level of brightness of the headlights of ...

    Inspection procedure
    1 Inspect terminal voltage(idl) Remove the cruise control ecu assy with connector still connected.  disconnect the ecm connector.  turn the ignition switch to on.  measure voltage between terminal 13 (idl) of cruise control ecu assy connector and body ground when the ...