Toyota Yaris: 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 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...
Other information:
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
The steering lock ECU (steering lock actuator or upper bracket assembly) communicates with the GTS through the certification ECU (smart key ECU assembly) which uses CAN communication...
DESCRIPTION
The intake air temperature sensor, mounted on the mass air flow meter sub-assembly, monitors the intake air temperature. The intake air temperature sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air...
Categories

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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