wiring diagram AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual

AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/916/w960_916-0.png AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual

Page 6 of 74

AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual 01-5
      
On Board Diagnostic (OBD), initiating 
program
 
     
Special tools, test equipment and auxiliary 
items  
     
VAS5051 Diagnostic Operation Center (DOC) 
and/or VAG1551 Scan Tool (ST).

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AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual 01-6
      
Notes:  
     
If the VAG1551 display remains blank, check 
the power supply. 
     
       Electrical Wiring Diagrams Troubleshooting & 
Component Locations   
     
Press the HELP button

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AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual 01-8
      
Note:  
     Check coding using the coding table   Page 01
-
25
 . 
     
- 
Press  button.Rapid data transfer 
HELP
Control module does not answer
    
 Electrical Wiring Diagrams Trouble

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AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual 01-12
 Diagnostic Trouble Code (DTC) table for instrument cluster
 
Notes:  
 
The following table lists all possible Diagnostic Trouble Codes (DTCs) which the instrument cluster can recognize and 
wh

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AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual 01-13
 
DTC  
Possible cause  
Corrective action  
VAG1551 scan tool 
display       
00667        
Ambient-Temperature 
Signal  
 
Open/Short circuit 
to B+ 
 Short circuit to 
Ground Vehicles without

Page 16 of 74

AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual 00779        
Outside Air 
Temperature Sensor-
G17  
 
Open/Short circuit 
to B+ 
 Short circuit to 
Ground  
Open circuit or short circuit
 Outside air temperature sensor --G17- 
faulty - Trace malfu

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AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 1999 Workshop Manual 01-14
 
01039        
ECT Sensor-G2  
 
Open/Short 
circuit to B+ 
 Short circuit to 
Ground (GND)  
Open circuit or short circuit between Engine Coolant 
Temperature Sensor (ECT) -G2- and instrument