1996 AUDI A4 ignition

start again automatically the next time the
ignition is switched on (for several seconds).

-
End engine basic setting by pressing the
button.

- Press buttons -0- and -6- to select "End Output"
function and confirm input with -Q- button.
Pa
ge 19 of 39 Electronic En
gine Power Control
(EPC
), checkin
g
11/22/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.4

24-153

Angle sensor -1- for throttle drive
(power accelerator actuation) -G187-
and angle sensor -2- for throttle drive
(power accelerator actuation) -G188,
checking

The angle sensor -1- for throttle drive (power
accelerator actuation) -G187 and angle sensor -
2- for throttle drive (power accelerator actuation)
-G188 inform the engine control module of the
position of the throttle valve. Both angle sensors
are located in the throttle valve control module.

- Connect vehicle diagnostic, testing and
information system VAS 5051 or VAG1551 scan
tool and select engine electronics control
module by entering address word "01" Page
01
-9 . When doing this the ignition must be
switched on.
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -8- to select function "Read Measuring Value
Block" and confirm entry with -Q- button.
Read Measurin
g Value Block
Q
Input displa
y group number
XXX

Indicated on display
- Press buttons -0-, -6- and -2- to select "display group number 062" and
confirm entry with -Q- button.
Pa
ge 20 of 39 Electronic En
gine Power Control
(EPC
), checkin
g
11/22/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.4

24-157

Checking voltage supply to throttle valve
control module

- Disconnect harness connector from throttle
valve control module.

- Switch ignition on.

If the specifications are not obtained, test wiring connections from engine
control module to throttle valve control module Page 24
-158
.
If the readouts match the specifications, test also the signal wires and
activation wires for the throttle valve positioner Page 24
-158
. - Connect hand-held multimeter (voltage range) between the following
sockets on connector:
6-pin connector on wiring harness, socket
Specification
2 + Ground (GND) approx. 5 V
2 + 6 approx. 5 V
Pa
ge 24 of 39 Electronic En
gine Power Control
(EPC
), checkin
g
11/22/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.4

24-159

Throttle Position (TP) sensor -G79 and
Sender -2- for accelerator pedal position
-G185, checking


Component location of Throttle Position (TP) sensor -G79 and
Sender -2- accelerator pedal position
The Throttle Position (TP) Sensor -G79 and Sender -2- for accelerator
pedal position -G185 are located at the accelerator pedal. Both sensors
inform (completely independently of the other) the engine control module
of the driver's throttle requirement (pedal position). Both sensors are
located in a single housing.
- Connect vehicle diagnostic, testing and information system VAS 5051
or VAG1551 scan tool and select engine electronics control module by
entering address word "01" Page 01
-9 . When doing this the ignition
must be switched on.
Pa
ge 26 of 39 Electronic En
gine Power Control
(EPC
), checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.4

24-163

Checking voltage supply of accelerator
position sensors

- Remove storage compartment on driver's
side.

Repair Manual, Body Interior, Repair Group
68


- Disconnect harness connector for accelerator
position sensor.

- Switch ignition on.

- Connect hand-held multimeter (voltage range) between the following
sockets on the connector: 6-pin connector on wiring harness, socket
Specification
2 + Ground (GND) approx. 5 V
1 + 3 approx. 5 V
5 + Ground (GND) approx. 5 V
5 + 4 approx. 5 V
Pa
ge 31 of 39 Electronic En
gine Power Control
(EPC
), checkin
g
11/22/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.4

24-166

Kick-Down function, adaptation

On vehicles with automatic/inifinitely variable
transmission, when the accelerator position
sensor or the Engine Control Module (ECM) was
replaced, the Kick-Down function from ECM must
be adapted.

Test conditions

No malfunctions stored in DTC memory
Page 01
-15
, check DTC memory

Engine not running, ignition switched on

- Connect vehicle diagnostic, testing and
information system VAS 5051 or VAG1551 scan
tool and select engine electronics control
module by entering address word "01" Page 01
-9 .

When doing this the ignition must be switched
on.
Pa
ge 35 of 39 Electronic En
gine Power Control
(EPC
), checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.4