buttons AUDI A6 1999 C5 / 2.G ATW Engine Electronic Power Control Checking Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 1999, Model line: A6, Model: AUDI A6 1999 C5 / 2.GPages: 51, PDF Size: 0.3 MB
Page 15 of 51

24-123
      
Procedure  
     
-  Connect VAS5051 tester or VAG1551 scan tool 
and select control module for engine electronics 
using "address word" 01   Page 01
-10
. Ignition 
must remain switched on. 
Rapid data transfer 
HELP
Select function XX
    
When indicated on display  
-  Press buttons -0- and -4- to select "Initiate basic setting" and press -Q- 
button to confirm input. 
Basic Settin
g 
Q
Enter displa
y group number XXX
    
When indicated on display  
After pressing Q-button, throttle valve actuator will be switched on without 
current.  
In this condition, the throttle valve will be drawn into an emergency 
position by a mechanical spring, which is located in the throttle valve 
control module. The values supplied by the two angle sensors in this 
emergency position are stored by the Engine Control Module (ECM).  -  Press buttons -0-, -6- and -0- to select "display group number 060" and 
press -Q- button to confirm input. 
Pa
ge 15 of 51 Electronic En
gine Power Control 
(EPC
) (E-Gas
), checkin
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11/21/2002 htt
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play?action=Goto&t
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pair&id=AUDI.B5.FU06.24.4 
Page 21 of 51

24-128
       Angle sensor 1 for throttle drive (power 
accelerator actuation) -G187- and angle sensor 1 
for throttle drive (power accelerator actuation) -
G188- inform the Engine Control Module (ECM) 
about the position of the throttle valve. Both 
angle sensors are located in the throttle valve 
control module.  
     
Test sequence  
     
-  Connect VAS5051 tester or VAG1551 scan tool 
and select control module for engine electronics 
using "address word" 01   Page 01
-10
. Ignition 
must remain switched on. 
Rapid data transfer 
HELP
Select function XX
    
When indicated on display  
-  Press buttons -0- and -8- to select "Read Measuring Value Block" and 
press -Q- button to confirm input. 
Read measuring value block 
Q
Enter displa
y group number XXX
    
When indicated on display  
-  Press buttons -0-, -6- and -2- to select "display group number 062" and 
press -Q- button to confirm input. 
Read Measuring Value Block 62  
1 
2 
3 
4
    
Indicated on display  
-  Check specified values for E-gas potentiometer voltages in display 
fields 1 and 2. 
Pa
ge 21 of 51 Electronic En
gine Power Control 
(EPC
) (E-Gas
), checkin
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11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.FU06.24.4 
Page 27 of 51

24-134
       Both the Throttle Position (TP) sensor -G79- and 
the Sender -2- for accelerator pedal position -
G185- are located at the accelerator pedal and 
communicate the driver's intentions to the ECM 
completely independently of each other. Both 
sensors are stored in one housing.  
     
Test sequence  
     
-  Connect VAS5051 tester or VAG1551 scan tool 
and select control module for engine electronics 
using "address word" 01   Page 01
-10
. Ignition 
must remain switched on. 
Rapid data transfer 
HELP
Select function XX
    
When indicated on display  
-  Press buttons -0- and -8- to select "Read Measuring Value Block" and 
press -Q- button to confirm input. 
Read measurin
g value block 
Q
Enter display group number XXX
    
When indicated on display  
-  Press buttons -0-, -6- and -2- to select "display group number 062" and 
press -Q- button to confirm input. 
Read Measuring Value Block 62  
1 
2 
3 
4
    
Indicated on display  
-  Check specified values for E-gas potentiometer voltages in display 
fields 3 and 4. 
Pa
ge 27 of 51 Electronic En
gine Power Control 
(EPC
) (E-Gas
), checkin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.24.4 
Page 34 of 51

24-140
 
Rapid data transfer 
HELP
Select function XX
    
When indicated on display  
-  Press buttons -0- and -4- to select "Initiate basic setting" and press -Q- 
button to confirm input. 
Basic Setting 
Q
Enter displa
y group number XXX
    
When indicated on display  
-  Press buttons -0-, -6- and -3- to select "display group number 063" and 
press -Q- button to confirm input. 
System in basic setting 63  
1 
2 
3 
4
    
When indicated on display  
Note:  
There will be a prompt: "Operate kickdown". 
Note:  
During adaptation of the kick down point, the VAG1551 will display "Kick 
down ADP in progress". After successful adaptation of the kick down 
point, the VAG1551 will display "Kick down ADP OK".  -  Depress accelerator pedal completely, past kick down point, and hold 
down. 
-  Check specified value in display field 4:
Pa
ge 34 of 51 Electronic En
gine Power Control 
(EPC
) (E-Gas
), checkin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.24.4 
Page 39 of 51

24-144
      
Note:  
     For safety reasons, the instruction from the 
accelerator pedal sensor (potentiometer) to the 
ECM to open the throttle valve is suppressed 
when brake is being operated. This requires the 
brake light switch signal and also the brake pedal 
switch signal in the control module. If brake pedal 
is operated with accelerator pedal constantly 
depressed, engine is immediately regulated 
down to idle speed. A faulty switch can lead to 
undesired regulation. 
     
Test sequence  
     
-  Connect VAS5051 tester or VAG1551 scan tool 
and select control module for engine electronics 
using "address word" 01   Page 01
-10
. Ignition 
must remain switched on. 
Rapid data transfer 
HELP
Select function XX
    
When indicated on display  
-  Press buttons -0- and -8- to select "Read Measuring Value Block" and 
press -Q- button to confirm input. 
Read measurin
g value block 
Q
Enter displa
y group number XXX
    
When indicated on display  
-  Press buttons -0-, -6- and -6- to select "display group number 066" and 
press -Q- button to confirm input. 
Pa
ge 39 of 51 Electronic En
gine Power Control 
(EPC
) (E-Gas
), checkin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.24.4 
Page 46 of 51

24-150
      
Note:  
     This signal helps prevent excessive RPM 
oscillations and tip-in shocks when clutch is 
disengaged and is required for the cruise control 
system. 
     
Test sequence  
     
-  Connect VAS5051 tester or VAG1551 scan tool 
and select control module for engine electronics 
using "address word" 01   Page 01
-10
. Ignition 
must remain switched on. 
Rapid data transfer 
HELP
Select function XX
    
When indicated on display  
-  Press buttons -0- and -8- to select "Read Measuring Value Block" and 
press -Q- button to confirm input. 
Read measuring value block 
Q
Enter displa
y group number XXX
    
When indicated on display  
-  Press buttons -0-, -6- and -6- to select "display group number 066" and 
press -Q- button to confirm input. 
Read Measuring Value Block 66  
1 
2 
3 
4
    
Indicated on display  
-  Check Clutch Pedal Position (CPP) switch in display field 2.
Pa
ge 46 of 51 Electronic En
gine Power Control 
(EPC
) (E-Gas
), checkin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.24.4