Introduction - External Harman Amplifier

Introduction - External Harman Amplifier

The manual contains the diagnosis for the following system:

External Harman amplifier

General instructions/safety instructions
The following points must be observed during vehicle diagnosis:
- 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.
- After the battery has been connected, the instructions in the assembly Refer to Work instructions after disconnecting the battery must be observed.
- Deactivate the automatic traffic announcement before beginning the diagnosis on the PCM2. If this is not done, the system will crash (applies only to version < 03).
- When working on the optical waveguide, please observe the instructions in assembly.
- After troubleshooting or repairs, erase the fault memory with the Porsche System Tester II 9588 and carry out a test drive.
- After the test drive, read out the fault memory with the Porsche System Tester II 9588 again.


DANGER:
- Danger of injury through triggering of driver's airbag
- Never hang the Porsche System Tester II 9588 over the steering wheel.

CAUTION:
- Danger of damage due to improper handling of the battery and the control module connectors.
- Never disconnect battery with engine running.
- Never start engine without securely connected battery.
- Never pull off or push on plug connections for the control modules or other electronic components when the ignition is switched on.