Audi A3 1997 Manual page 47

Display zone
Operating and display unit -E87 with two displays and with part number up to index "C"
3
▪ Voltage for illuminating the various display elements of -E87.
Approx. battery voltage when side lights are off.
approx. 2.0 V to 12.5 V with side lights switched on (voltage at connector -A- contact -5- to -E87,
governed by the position of the control for instrument illumination -E20 terminal 58d).
Operating and display unit -E87 with two displays and with part number with indices "D", "E", "M"
or "N"
▪ Voltage for the lighting of displays of -E87 (terminal 58d).
0% to 100% (corresponds to approx. 1.0 V to 12.5 V).
Operating and display unit -E87 with one display
▪ Voltage for the lighting of the display of -E87 (terminal 58d).
0% to 100% (corresponds to approx. 1.0 V to 12.5 V).
Display zone
Operating and display unit -E87 with two displays and with part number up to index "C"
4
▪ Display zone not used.
Checking terminal 58 => Electrical testing, Page
Operating and display unit -E87 with two displays and with part number with indices "D", "E", "M"
or "N"
▪ Voltage for the lighting of displays of -E87 (terminal 58s).
Side lights switched on 10% to 100% (corresponds to approx. 1.0 V to 12.5 V).
Side lights switched off 0% to 10%.
Operating and display unit -E87 with one display
▪ Voltage for the lighting of displays of -E87 (terminal 58s).
Side lights switched on 10% to 100% (corresponds to approx. 1.0 V to 12.5 V).
Side lights switched off 0% to 10%.
Notes on display zones 3 and 4:
◆ A voltage between 0 and 2V is displayed in operating and display units with part number index "B"; the
electrical check must be performed on these vehicles, Page
◆ Regardless of the operating and display unit -E87 version, the values are displayed in volts or percent.
◆ Checking input voltage for terminals 58, 58d and 58s on operating and display unit -E87 =>Electrical check,
Page 46 .
◆ The -E87 operating controls are illuminated only if voltage is applied to terminal 58 and 58s.
◆ The brightness of the -E87 display illumination can be changed via the -E20 illumination control, even if the
side lights are switched off.
◆ The voltage at terminal 58d is generated as a square-wave signal by the dash panel insert. The brightness
of -E87 displays is determined by the actuation time. The measuring instrument displays the average value.
◆ The actuation time at terminal 58d is governed by the illumination control setting and the brightness level
determined by the photosensor in the dash panel insert.
◆ The voltage at terminal 58s (with side lights switched on) is governed by the illumination control setting and
the brightness level determined by the photosensor in the dash panel insert.
Display group 009:
Engine speed, vehicle speed, auxiliary heater, side lights (terminal 58) and assignment ignition key)
Display zone
▪ Engine speed in rpm.
1
▪ Vehicle speed in km/hour.
2
0 = No speed signal detected since the ignition was switched on.
1 = At least one vehicle speed signal detected since the ignition was switched on.
Heating, Air Conditioner - Edition 06.2000
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Display
Display
46
46 .
Display
9.3 - Display groups 007 to 012
Audi A3 1997 ➤
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