Toyota Corolla (E120): Inspection procedure

1 Inspect dlc3 terminal voltage

  1. Turn the ignition switch to on.
  2.  measure voltage between terminals 13 (tc) and 4 (cg) of dlc3.

    Ok: voltage: 10 – 16 v

2 Check harness and connector(between cruise control ecu assy

2 Check harness and connector(between cruise control ecu assy and dlc3)

  1. Check for open and short circuit in harness and connector between cruise control ecu assy and dlc3

Check and replace cruise control ecu assy

Check and replace cruise control ecu assy

    Share this page:

    Other materials:

    Circuit description
    When the brake pedal is depressed, the stop lamp switch assy sends a signal to the cruise control ecu assy. When the cruise control ecu assy receives this signal, it cancels the cruise control. A fail–safe function is provided so that cancel functions normally, even if there is a malfu ...

    Circuit description
    The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...

    Precaution
    1. Do not handle refrigerant in an enclosed area or near an open flame 2. Always wear eye protection 3. Be careful not to get liquid refrigerant in your eyes or on your skin If liquid refrigerant gets in your eyes or on your skin.  wash the area with lots of cool water. Cautio ...