01-105
      
Work step 10: Diagnostic of catalytic 
converter 
     
Test requirement:  
     
Engine continues to run at 2600 RPM. 
    
Display on VAS5051:  
Note:  
Catalytic converter diagnostic lasts approx. 60 seconds.  - 
Press   button 3 times to change into display group 046.-  Check specified values in display fields -2- and -4-.
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        01-106
 
  
Display fields  
  
1   2   3   4  
Display group 046: Diagnostic of catalytic converter (bank 1)  
Display  xxxx/min  
xxx C  
x.xx  
---  
Indicated  Engine 
speed 
(RPM)  Exhaust temperature  Measurement  
Catalytic 
converter - 
conversion  Diagnostic condition  
Functional 
range        0 to 8   Test OFF  
Test ON  
Cat B1 OK  
Cat B1 not OK  
Specified 
value  2600 RPM  
550 to 700  C  
Larger than 1.0   Cat B1 OK  
Note  
  
As long as the exhaust temperature 
is not within the specified range, the 
test will not be initiated. If necessary, 
increase or decrease RPM    
If "Cat B1 not OK" is displayed: 
Check DTC memory   Page 01
-
12
 . If no DTCs are stored, 
replace catalytic converter.  
      If specified value "Cat B1 OK" is obtained:  
     
-  Perform next work step.
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