AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual https://www.carmanualsonline.info/img/6/1060/w960_1060-0.png AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual

Page 1 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual 24-134
 
     
Electronic engine power 
control (E-Gas), checking 
     
E-Gas system, function
 
      For E-Gas, the throttle valve is not operated by a 
cable from the accelerator pedal. There is n

Page 2 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual pedal position. This means, if the accelerator 
pedal is depressed half way, the throttle valve 
actuator opens the throttle valve to the same 
degree; i.e. throttle valve would be opened half 
way.

Page 3 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual 24-135
       With engine running (under load), the ECM can 
open or close the throttle valve independently of 
the sensor for accelerator pedal position.  
      This means, for example, that the thr

Page 4 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual 24-136
      
Electronic Power Control (EPC) warning 
lamp -K132- in instrument cluster, 
significance
 
      "EPC" is an abbreviation and stands for 
Electronic Power Control (E-gas).  
    
Install

Page 5 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual 24-137
      
Electronic Power Control (EPC) warning 
lamp -K132-, checking
 
     
Note:  
     The fault light for power accelerator activation -
K132- is also called the EPC warning lamp. 
     
Sp

Page 6 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual 24-138
      
Function test of warning lamp  
     
-  Switch ignition on.
     
 
Engine Control Module (ECM) switches EPC 
lamp on. 
     
- Start engine. 
     
 Shortly after engine is started, th

Page 7 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual      
-  Switch ignition off.
     
- Remove instrument cluster:
     
       Repair Manual, Electrical Equipment, Repair 
Group 90, Instrument cluster, removing and installing
   
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Page 8 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual 24-139
      
-  Check the following wire connection for open 
circuit and short circuit to B+: 
     
Test box  
VAG1598/31  
Socket  
Instrument cluster  
  
Terminal  
48    Electrical Wiring Diagr

Page 9 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual 24-140
      
B- Fault light for power accelerator activation 
-K132- lights up constantly  
     
-  Check DTC memory of Engine Control Module 
(ECM). 
      If no DTCs are stored:  
     
-  Connect

Page 10 of 41

AUDI A4 1996 B5 / 1.G ATQ Engine Electronic Engine Power Control Checking Workshop Manual Locations binder   
     
-  Repair short circuit if necessary.
      If wire connection is OK:  
     
-  Replace Engine Control Module (ECM)   Page 
24
-21
 . 
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