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Clutch vacuum vent valve switch -F36-, 
checking
 
     
Note:  
     This signal helps prevent excessive RPM 
oscillations and tip-in shocks when clutch is 
disengaged and is required for the cruise control 
system. 
     
Test sequence  
     
-  Connect VAS5051 tester or VAG1551 scan tool 
and select the control module for engine 
electronics using "address word" 01   Page 01
-
9 . 
     
   Ignition must remain switched on for this.Rapid data transfer  
HELP
Select function XX
    
When indicated on display:  
-  Press buttons -0- and -8- to select "Read Measuring Value Block" and 
press -Q- button to confirm input. 
Read Measurin
g Value Block 
Q
Input displa
y group number XXX
    
When indicated on display:  
-  Press buttons -0-, -6- and -6- to select "display group number 066" and 
press -Q- button to confirm input. 
Read Measuring Value Block 66 
    
Indicated on display:  
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        Page 25 of 44
 
1 
2 
3 
4
-  Check Clutch Pedal Position (CPP) switch in display field 2.
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24-184
 
  
Display fields  
  
1   2   3   4  
Display group 066: Signals to Engine Control Module (ECM)  
Display  xxx km/h  
XXXX  xxx km/h  XXXX  
Indicated  ACTUAL speed  
Switch positions   SPECIFIED speed   Switch positions  
Functional range    
  X0XX  
X1XX       
Specified value    
X0XX  
(at clutch pedal 
not operated)       
    
X1XX  
(at clutch pedal 
operated)       
Notes    
Value: 
X = no significance       
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        Page 27 of 44
24-185
       If indications do not resemble description:  
     
Check switch  
     
-  Remove driver-side storage compartment.
     
       Repair Manual, Body
-Interior, Repair Group 
68; Instrument Panel; Removing Driver
-Side 
Storage Compartment
   
     
-  Disconnect harness connector at Clutch Pedal 
Position (CPP) switch. 
     
Note:  
     Connector sockets are marked on the back side 
of the connector. 
     
-  Connect multimeter between terminal 1 and 2 
for resistance measurement. 
     
 
Specification: approx. 0 
     
-  Depress clutch pedal.
     
 
Specification:  (no continuity)
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        Page 28 of 44
      If specified value is not obtained:  
     
-  Check adjustment of switch or
     
-  Replace Clutch Pedal Position (CPP) switch.
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