check engine AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual

AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual A4 1995 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1092/w960_1092-0.png AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual

Page 3 of 13

AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual 01-3
      
Malfunction Indicator Lamp (MIL), 
significance
 
      If the ECM recognizes malfunctions that lead to a 
worsening of emissions values, it indicates them 
by lighting the exhaust Malfunc

Page 4 of 13

AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual 01-4
      
Continuously lit: 
      There is a malfunction that causes increased 
emissions. Check DTC memory for Motronic 
ECM and automatic transmission (if installed).  
      Check DTC memory if

Page 5 of 13

AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual 01-5
      
Malfunction Indicator Lamp (MIL), 
checking
 
     
Function test of warning lamp  
     
-  Switch ignition on.
     
 
Exhaust MIL must light up
     
- Start engine. 
     
 Shortly aft

Page 7 of 13

AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual 01-7
      
VAS 5051 tester, connecting and 
selecting functions
 
     
Test requirements:  
     
Fuses for engine electronics OK 
     
       Electrical Wiring Diagrams, Troubleshooting & 
Compone

Page 11 of 13

AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual 01-10
 
Engine Control Module (ECM) identification (example)  
01 - Engine electronics   Vehicle system  
4B0906018M   part number; allocation  
 Parts Catalog   1.8L 
1) 
R4/5VT 
2) 
G 
3) 0002 
4)

Page 12 of 13

AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual 01-11
      
- 
Click on   - button
    
Display on VAS5051:  
1 - Selection of diagnostic functions:
Diagnostic functions  
Ignition on,engine 
off  
Engine running at 
idle  
Vehicle in drive 
mode