Launch X-431 Pad 7 Solved Benz W176 LED Day Light Not Work

Mercedes Benz W176 A class LED day light does not work after LEFT headlamp module replacement. Launch X-431 PAD Series can support solving the problem, working on tablets like Launch PAD VII, PAD V & IMMO PAD. Following is the detailed solution.

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Solution Procedure

Make a full health report and check all DTC at first.

Click "Read fault code".

There's a DTC:

B177655 - Control unit "Actuation module, LED exterior lighting, left front" has a malfunction. The component is not configured.

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Special function >> Teach-in processes >> Commissioning of control unit "E1n7"(Actuation module, LED exterior lighting, left front)" >> Continue

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Follow the instruction to input string.

Click "Continue".


The coding is being performed, please wait...

Commissioning of control unit "E1n7"(Actuation module, LED exterior lighting, left front)"

- initial startup of the control unit was completed successfully.

Check the following light functions:

- E1e5(Left front turn signal light)

- E1e13(Left parking light, standing light and daytime running light)

Click "Continue".

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Go to Clear Fault Code.

Are you sure to clear fault memory? Yes

Clear fault memory completed.

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Go back to read fault code again.

There's no DTC.

Problem was solved!

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This is how to use Launch X431 Pad 7 to solve the Mercedes LED daylight not working problem.

http://blog.obd2shop.co.uk/launch-x-431-pad-7-solved-benz-w176-led-day-light-not-work/

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