New Beetle GLS L4-2.0L (AVH) (2001)
Brake Signal: Testing and Inspection
Signal From Brake Light Switch And Brake Pedal Position Switch, Checking
Special tools and equipment
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Scan tool VAG 1551 or vehicle system tester V.A.G 1552 with cable VAG 1551/3B
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Test box VAG 1598/31
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Hand multimeter V.A.G 1526 or multimeter V.A.G 1715
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Adapter set V.A.G 1594
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Wiring diagram
Test conditions
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All fuses must be OK
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The battery voltage must be at least 11.5 V
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All electrical consumers, e.g. lights and rear window heating must be switched off
Test sequence
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Connect scan tool VAG 1551 (V.A.G 1552). Switch ignition on and select engine control module with "Address word" 01.
Connecting scan tool and selecting Engine Control Module (ECM). Refer to "Scan Tool Testing/Scan Tool Connecting and Initial
Checks/VAG1551 Scan Tool" See: Testing and Inspection
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons 0 and 8 for function "Read Measuring Value Block " and confirm entry with Q button.
Indicated on display
Read Measuring Value Block
HELP
Input display group number XXX
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Press buttons 0, 6 and 6 for "display group 66" and confirm with Q button.
Indicated on display (1-4 = Display zones)
Read Measuring Value Block 66
->
1
2
3
4
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Observe display in display zone 2:
(3rd and 4th positions from left)
Specification: x x 0 0
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Depress brake pedal and observe display in display zone 2.
Specification: x x 1 1
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Press -> button.