01800

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Table Of Contents

1. 01800 - Light Switch (E1)
- 1.1.1 01800 - Light Switch (E1): Implausible Signal
  - 1.1.1.2 Possible Symptoms
  - 1.1.2.2 Possible Causes
  - 1.1.3.2 Possible Solutions
  - 1.1.4.2 Special Notes

01800 - Light Switch (E1)

01800 - Light Switch (E1): Implausible Signal

Possible Symptoms

Parking Light Status Lamp (in Instrument Cluster) stuck ON
Self Dimming Rear View Mirror not working

Possible Causes

Light Switch (E1) faulty (or switched to an intermediate position)
Wiring/Connectors from/to Light Switch (E1) faulty

Possible Solutions

Check Light Switch (E1)
- See Measuring Value Blocks (MVB)
Check Wiring/Connectors from/to Light Switch (E1)

Special Notes

When found in Audi A3/S3 (8P): Central Electronics, check Light Switch Status in Measuring Value Block (MVB) 017 and 018.
When found in Audi A4/S4/RS4/Cabriolet (8E/8H): Central Electronics, check Light Switch Status in Measuring Value Block (MVB) 006.1.

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