28-7
 
    
If LED does not light up:  
 Electrical Wiring Diagrams, Troubleshooting & Component Locations   
If LED lights up:  
Checking voltage supply  
Test requirement: 
 Electrical Wiring Diagrams, Troubleshooting & Component Locations    -  Connect VAG1527B voltage tester as follows:Harness connector  
Terminal  
Measure to  
2   B+  
4   B+  
 
LED must light up. 
-  Check wire connections. 
-  Check voltage supply 
Fuses for engine electronics OK 
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11/21/2002 htt
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