Audi / A1 (8X) / 03 - Brake electronics ESP9.0i front [EV_Brake1ESP90iBOSCH 003020] / Pedal switch (brake pedal) - Test

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Mark	Model	Control unit	Diagnostic operation

Mark

Select a vehicle make or a common group such as Service Intervals, Engines, Transmissions, Immobilizers and Independent Heaters.

Model

Control unit Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Diagnostic operation Select the desired diagnostic procedure.

Diagnostic procedure

This operation was considered useful 1x.

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connect with the control unit XX - Brake electronics

XX - Measured values

select item in menu: brake light switch (IDEXXXXX)

Read

depress and hold - brake pedal

required values

brake light switch (IDEXXXXX) = on

release - brake pedal

required values

brake light switch (IDEXXXXX) = off

if values are not achieved - check component:
- pedal switch (brake pedal)
- control line pedal switch (brake pedal) -> control unit

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