Allroad Quattro V6-2.7L Turbo (APB) (2002)
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Check indication in display field -2-.
If the fuel supply is indicated, instrument cluster is malfunctioning.
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Replace instrument cluster.
If the fuel supply is not indicated:
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Check signal at multi-pin harness connector at instrument cluster.
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Remove instrument cluster.
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Connect VAG1598A test box to blue 32-pin multi-pin harness connector using VAG1598/25 adapter.
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Connect multimeter between terminal 5 and 7 (sensor Ground (GND)) for resistance measurement.
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Specification: between approx. 70 ohm (tank empty) and approx. 270 ohm (tank full)
If specified value is not obtained:
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Check wire connection between instrument cluster and sender for fuel gauge according to wiring diagram.
If no malfunctions are found in wires:
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Check sender for fuel gauge.
If specified value is obtained:
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Replace instrument cluster.