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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    Replacement
    1. Discharge refrigerant from refrigeration system  turn the a/c switch on.  operating the cooler compressor at the engine rpm of approx. 1000 For 5 to 6 min., Circulate the refrigerant and collect compressor oil remaining in each component into the cooler compressor as much ...

    Circuit description
    Refer to dtc p0115 Dtc no. Dtc detection condition Trouble area P0125 If the engine coolant temperature (ect) was less than –6.6 °C (20 °F) when starting the engine, and 20 minutes after the engine start, the ect sensor still indicates below 20 °C (68 ...

    Circuit description
    The ignition switch provides circuit power and the ecm provides the circuit ground that illuminates the mil. Mil operation is checked visually: it should be illuminated when the ignition is first turned on. If the mil is off all of the time or on all of the time, use the procedure below to ...