AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owner's Manual

AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owner's Manual A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1076/w960_1076-0.png AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owner's Manual
Trending: ignition, wiring, check engine, engine coolant, brake sensor, sensor, display

Page 21 of 51

AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 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

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AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 24-129
 
  
Display fields  
  
1   2   3   4  
Display group 062: E-Gas potentiometer voltages  
Display  
xx %  
xx %   xx %   xx %  
Indicated  
Throttle valve angle  
(angle sensor 1)  Throttle va

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AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 24-130
      
Note:  
     
The reason why the value indicated in display 
field 1 climbs, while the value indicated in 
display field 2 decreases, has to do with the fact 
that the potentiometers (an

Page 24 of 51

AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 24-131
      
Check voltage supply throttle valve control 
module  
     
-  Pull connector -2- off throttle valve control 
module. 
     
-  Switch ignition on.
    
If specified values are not obtai

Page 25 of 51

AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 24-132
      
Checking wire connections  
    
If no malfunctions are found in wires:  -  Pull connector -2- off throttle valve control module.
-  Connect VAG1598/31 test box at wiring harness to Engi

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AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 24-133
 
  
Throttle Position (TP) sensor, checking
 
Special tools and equipment  
 
VAG1526A
 VAG1594A
 VAG1598/31
 VAS5051 with VAG5051/1
- or 
 VAG1551 with VAG1551/3A
Pa
ge 26 of 51 Electronic En

Page 27 of 51

AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 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 drivers intentions to t

Page 28 of 51

AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 24-135
 
  
Display fields  
  
1   2   3   4  
Display group 062: E-Gas potentiometer voltages  
Display   xx %   xx %  
xx %  
xx %  
Indicated   Throttle valve angle  
(angle sensor 1)  Throttle va

Page 29 of 51

AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 24-136
      
Note:  
     The indicated value in display field 3 must always 
be about twice as large as the value in display 
field 4. 
      If indications do not resemble description:  
     
-  C

Page 30 of 51

AUDI A4 1999 B5 / 1.G ATW Engine Electronic Power Control Checking Owners Manual 24-137
      
Checking voltage supply of Throttle Position 
(TP) sensor  
     
-  Remove driver-side storage compartment.
     
       Repair Manual, Body Interior, Repair Group 
68; Instrument panel
Trending: check engine, sensor, ignition, light, wiring, engine coolant, display