Gateway Ecu

WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Gateway ECU Terminal

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Fig 2: Gateway ECU Wiring Color Table

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Oscilloscope * 1 : wave 1

Measure terminal: SYNC <--> GND1
Measure set: 500 mV/DIV 10 mu s/DV
Condition: Navigation display is displayed

Fig 3: Identifying Navigation Display Waveform
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Oscilloscope * 1 : wave1

Measure terminal: R, G, B <--> GND1
Measure set: 200 mV/DIV 10 mu s/DV
Condition: Navigation map is switched.

Fig 4: Identifying Navigation Map Display
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