Toyota Yaris: Headup Display System / Terminals Of Ecu
TERMINALS OF ECU
METER MIRROR SUB-ASSEMBLY
(a) Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| H61-1 (IG) - Body ground | Power source for engine stop and start ECU assembly | Ignition switch off | Below 1 V |
| Ignition switch ON | 10.5 to 16 V | ||
| H61-2 (B) - Body ground | Power source for engine stop and start ECU assembly | Ignition switch off | 11 to 14 V |
| H61-4 (ES) - Body ground | Ground | Always | Below 1 Ω |
| H61-12 (MPX1) | CAN communication line | - | - |
| H61-13 (MPX2) | CAN communication line | - | - |
| H61-14 (TX+) | Local bus communication line | - | - |
| H61-15 (TX-) | Local bus communication line | - | - |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored...
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Key Suspend Function
If a key is left in the vehicle, the functions of the key left in the vehicle are temporarily suspended to prevent theft of the vehicle.
To restore the functions, press the unlock button on the functions-suspended key in the vehicle.
