Jetta Sedan L5-2.5L (BGP) (2005)
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Depress brake pedal and hold brake pedal depressed.
Specification: XXXXXX11
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End diagnosis and switch ignition off.
If specification is not obtained:
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Check voltage supply of Brake Light Switch F / Brake Pedal Switch F47 and the wiring to Motronic Engine Control Module (ECM) J220.
Checking voltage supply
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Remove driver side footwell cover.
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Disconnect 4-pin connector from Brake Light Switch F / Brake Pedal Switch F47.
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Connect Multimeter V.A.G 1526 to terminal 1 and ground (GND) for voltage measurement, using jumper wires from connector test set V.A.G
1594.
Specification: approx. battery voltage
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Switch ignition on.
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Connect Multimeter V.A.G 1526 to terminal 2 and Ground (GND) for voltage measurement, using jumper wires from connector test set V.A.G
1594.
Specification: approx. battery voltage
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Switch off ignition.
If specifications are not obtained:
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Check wiring.
If specified values are achieved:
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Connect Multimeter V.A.G 1526 to terminals 1 and 4 for resistance measurement, using the jumper wires from connector test set V.A.G 1594.
Specification:Infinite Ohms
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Operate brake pedal.
Specification: approx. 0 Ohms
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Connect Multimeter V.A.G 1526 to terminals 2 and 3 for resistance measurement, using the jumper wires from connector test set V.A.G 1594
Specification: approx. 0 Ohms
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Operate the brake pedal.
Specification: Infinite Ohms
If specified values are achieved:
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Check wiring.
If specifications are not obtained: