Vehicle Exterior. Yaris. Ncp93, 131
Lighting (Ext). Yaris. Ncp93, 131
Lighting System (For Sedan) -- Terminals Of Ecu |
CHECK MAIN BODY ECU |


Disconnect the 4B and 4E main body ECU connectors.
Measure the resistance and voltage between each terminal of the wire harness side connectors and body ground.
If the result is not as specified, there may be a malfunction on the wire harness side.Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition 4B-30 (BECU) - Body ground L - Body ground Battery power supply Always 11 to 14 V 4E-17 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω