Exterior Lighting System

LIGHTING (EXT): LIGHTING SYSTEM: TERMINALS OF ECU

1. CHECK MAIN BODY ECU AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

Text in Illustration

(a) Remove the main body ECU.

(b) 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.

(c) Reinstall the main body ECU.

(d) Measure the resistance and voltage between each terminal of the wire harness side connectors and body ground.

* *1: w/o Daytime Running Light System

* *2: w/ Daytime Running Light System

If the result is not as specified, the main body ECU may have a malfunction.

(1) Waveform 1: Using an oscilloscope

HINT
If the ambient light becomes brighter, width A becomes narrower.