Toyota Corolla (E120): Circuit description

Connecting terminals tc and cg of the dlc3 causes the ecu to display the dtc by flashing the abs warning light.

Wiring diagram

Inspection procedure

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    Inspection procedure
    Hint: this dtc chart is on the premise that the engine is cranked normally. If the engine is not cranked, proceed to the problem symptoms table on page 05–42. Read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions ...

    Wiring diagram
    1 Inspect terminal voltage(pi) (a) turn Turn the ignition switch to on.  measure voltage between terminal 5 (pi) of cruise control ecu assy and body ground, when the cruise control main switch button is on and off. Ok: 2 Inspect combination meter assy 3 Check harn ...

    Monitor description
    The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other data. If the battery voltage falls below a minimum level, the ecm will conclude that there is a fault ...