Golf GLS L4-2.0L (AVH) (2002)
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Set the multimeter to voltage measurement and connect it to terminal 1 (connector for Engine Control Module -ECM-) + Ground (GND).
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Start engine, and let run at idle.
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Measure voltage supply:
Specification: 11.0 to 14.5 V
If there is no voltage:
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Check wire connection from terminal 1 to Fuel Pump (FP) relay -J17- according to wiring diagram.
If specified value is obtained:
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Use adapter cables from VAG1594 to connect multimeter to terminals 1 +2 (ECM connector) for voltage measurement.
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Measure voltage supply and observe display group 41, display field 4.
Htng.beh.cat.ON indicated:
Specification: 11.0 to 14.5
VHtng.beh.cat.ON
Htng.beh.cat.OFF (alternating) indicated:
Specification: oscillating between 0.0 and 12.0 V
If specified value is not obtained:
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Switch ignition off.
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Remove wiper arms and wind cowl