Golf L4-2.0L (AEG) (1999)
Clutch Switch: Testing and Inspection
With Manufacturer's Scan Tool
Clutch Pedal Switch Signal Check
Special tools and equipment
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V.A.G1551 Scan Tool (ST) or VAG1552 mobile scan tool with VAG1551/3 adapter cable
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VAG1598/22 test box
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Multimeter (Fluke 83 or equivalent)
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VW1594 adapter set
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Wiring diagram
Test sequence
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Connect V.A.G1551 (VAG1552) Scan Tool (ST) See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading
and Clearing Diagnostic Trouble Codes/Scan Tool Connecting
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Turn on ignition and press buttons -0- and -1- to insert "Engine Electronics" address word 01.
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press buttons -0- and -8- to select "Read Measuring Value Block" function 08 and press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block
Input display group number XXX
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Press buttons -0-, -6- and -6- to input display group number 66 (066) and press -Q- button to confirm input.
Indicated on display: (1-4 = display fields)
Read Measuring Value Block 66
->
1
2
3
4
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Observe display in display field 2 (2nd digit from left).
Specified value: x 0 x x
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Depress clutch pedal fully and observe display in display field 2.
Specified value: x 1 x x
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Press -> button.
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Press buttons -0- and -6- to select "End Output" function 06 and press -Q- button to confirm input.
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Turn off ignition.
If the display does not change:
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Disconnect 2-pin harness connector from clutch vacuum vent valve switch.