Audi Workshop Service and Repair Manuals > A4 Mk1 > Vehicle electrics | Radio, Telephone and Navigation System - Self-diagnosis | Self diagnosis, V.A.G Inspection Service | Self-diagnosis of voice control system

Radio, Telephone and Navigation System - Self-diagnosis

Self-diagnosis of voice control system

Reading measured value block

Performing "Read measured value block" function

→ Indicated on display:

Rapid data transfer HELP

Select function XX

→ Indicated on display:

Rapid data transfer Q

08 - Read measured value block

→ Indicated on display:

Read measured value block

Enter display group number XXX

The measured value block selected is then displayed in standardised form.

List of display groups:


Display group number	Indicated on display
001	1 = PTT key 2 = Volume 3 = 0...6 4 = Not used
125	1 = Dash panel data bus 2 = Steering wheel data bus 3 = Telephone data bus 4 = Radio data bus
126	1 = Monitoring data bus

Measured value block 001


Read measured value block 1			⇒	◂ Indicated on display
Not pressed	Volume	0

			Output volume ▪ 0...6
		Volume
	PTT key (voice input switch on multi-function steering wheel) ▪ Not pressed ▪ Pressed

Measured value block 125


Read measured value block 125			⇒	◂ Indicated on display
Dash panel 1	Steering wheel 1	Telephone 1

			Telephone ▪ "1" = on data bus ▪ "0" = not on data bus (transmission fault) ▪ " " = not connected to data bus
		Multi-function steering wheel control unit ▪ "1" = on data bus ▪ "0" = not on data bus (transmission fault) ▪ " " = not connected to data bus
	Dash panel insert ▪ "1" = on data bus ▪ "0" = not on data bus (transmission fault) ▪ " " = not connected to data bus

Measured value block 126


Read measured value block 126		⇒	◂ Indicated on display
Two-wire



	Monitoring data bus ▪ "Single-wire" = data bus only in single-wire mode (faulty) ▪ "Two-wire" = data bus OK

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