Hazard warning lights switch (25): Connection: Notes

The lead to the button is supplied 10.2 V via a BCM integrated resistor of 1.5 kO. Control module inputs are digital; voltage over 2V is interpreted as an open circuit while voltage lower than 2V is interpreted as closed.

Fig 1: Identifying Main Task Connection

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Fig 2: Main Task Connection Circuit Diagram

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The indicator lamp in the button is supplied battery voltage from BCM in order to light.