Toyota Yaris: Charging System / Terminals Of Ecm

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Power Source & Network / G16e-gts (battery / Charging) / Charging System / Terminals Of Ecm




The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

Terminal No. (Symbol)

Terminal Description


Specified Condition

A106-1 (BATT) - A106-10 (E1)

Auxiliary battery (for measuring auxiliary battery voltage and for ECM memory)


11 to 14 V

A106-10 (E1) - Body ground



Below 1 Ω

D104-62 (LIN) - Body ground

LIN communication line

Ignition switch off

(while LIN communication stopped)

10 kΩ or higher

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    PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table...

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    DIAGNOSIS SYSTEM DLC3 (Data Link Connector 3) (a) Check the DLC3. Click here HINT: If the voltage is below 11 V, replace or recharge the auxiliary battery...

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    Smart key Auxiliary key Key code number plate

    To use the auxiliary key, press the knob and pull out the auxiliary key from the smart key.

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