Toyota Corolla (E120): Circuit description

Monitor description

Monitor description

The ecm commands gearshift by turning the shift solenoid valves ”on/off”. When there is an open or short circuit in any shift solenoid valve circuit, the ecm detects the problem and the mil comes on. Illuminating the mil, the ecm performs the fail–safe and turns the other shift solenoid valves in good condition ”on/off” (in case of an open or short circuit, the ecm stops sending current to the circuit.).

Monitor strategy

Typical enabling condition

Typical enabling condition

Typical malfunction thresholds

Typical malfunction thresholds

Component operating range

Component operating range

Wiring diagram

Wiring diagram

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    Circuit description
    Refer to dtc p0130 Dtc no. Dtc detecting condition Trouble area P0134 After engine is warmed up, heated oxygen sensor (bank 1 sensor 1) output does not indicate rich (greater than 0.45 V) even once when conditions (a), (b), (c), (d) and (e) continue for ...

    Diagnostic trouble code chart
    If a dtc is displayed during the dtc check, check the circuit listed in the table below and proceed to the page given. * :● ... Mil light up ...

    Engine
    On–vehicle inspection Hint: inspect these items on a cooled down engine. 1. Inspect drive belt 2. Replace spark plugs 3. Inspect air filter Remove the air filter.  visually check that the air filter is not excessively damaged, dirty or oily. Peplace the air filter if nece ...