Toyota Yaris: Seat Heater System / Terminals Of Ecu

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Vehicle Interior / Seat / Seat Heater System / Terminals Of Ecu

TERMINALS OF ECU

CHECK POWER DISTRIBUTION BOX ASSEMBLY

(a) Remove the power distribution box assembly.

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(b) Reconnect the power distribution box assembly connectors.

(c) Measure the voltage and resistance according to the value(s) in the table below.

Standard:

Terminal No.

(Symbol)

Terminal Description

Condition

Specified Condition

4G-1 - Body ground

Power source

Ignition switch off

11 to 14 V

4C-25 - Body ground

Ground

Always

Below 1 Ω

4C-39 - Body ground

Power source output (seat heater LH)

Ignition switch off

Below 1 Ω

Ignition switch ON

11 to 14 V

4C-40 - Body ground

Power source output (seat heater RH)

Ignition switch off

Below 1 Ω

Ignition switch ON

11 to 14 V

    Problem Symptoms Table

    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...

    Seat Belt

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