⚠️ In order to access ECU LEDs, the ECU lid must be removed first.

Instructions on how to open ECU lid are found in Mavenoid Guide.

Normal ECU LED’s status

After vehicle is powered - LEDs from #2 to #5 must glow, #1 LED must be off.

That indicates, that ECU is powers up properly.

LEDs definitions:

• LED #1 -> ERR - indicates an ECU error and normally must be off.
• LED #2 -> MCU - indicates a response from the MCU.
• LED #3 -> 3V3 - indicates 3V3 supply line status.
• LED #4 -> 5V - indicates 5V supply line status.
• LED #5 -> 12V - indicates 12V supply line status.

LED #2 states

Before vehicle is started, the LED #2 must glow constantly. After vehicle is started - LED #2 must start blinking.