Introduction

Caution!

Danger of damage due to improper handling of the battery and the control module connectors.

HBA (headlight beam adjustment).

> Never disconnect battery with engine running.

General instructions / safety instructions

The following points must be observed during vehicle diagnosis:

> Never start engine without securely connected battery.

After the battery is connected, volatile memories must be reprogrammed. In the case of radio coding and tuning, the customer must be informed of decoding and the deleted tuner memory.

> Never pull off or push on plug connections of the control modules or other electronic components when the ignition is switched on.

The coding, calibration and headlight adjustment must be observed after an HBA control module or an angle sensor for HBA has been replaced or the running gear has been modified.

After troubleshooting or repairs, erase the fault memory with the Porsche System Tester 2 and carry out a test drive.

After the test drive, read out the fault memory with Porsche System Tester 2 again.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

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