Passat Wagon 4Motion V6-2.8L (ATQ) (2003)
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Read value indicated in display field 2.
Specification: at least 11.5 V
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Press -> button.
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Press buttons -0- and -6- to select "End data transfer" function 06. Press -Q- button to confirm input.
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Switch ignition off.
If specified value is not obtained:
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Connect VAG 1598/31 test box to control module wiring harness. Engine Control Module (ECM) is not connected.
Checking Voltage Supply at Terminal 30
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Use multimeter and auxiliary wires from VAG 1594 to measure supply voltage between sockets 1 + 62 of test box: and between sockets 2 + 62 of
test box
Specification: at least 11.5 V
If specified value is not obtained:
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Check wire connections to relay carrier (see wiring diagram).
Checking Voltage Supply at Terminal 15
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Use multimeter and auxiliary wires from VAG 1594 to measure supply voltage between sockets 1 + 3 of test box and between sockets 2 + 3 of test
box
Specification: at least 11.5 V
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Switch ignition on.
Specification: at least 11.5 V
If specified value is not obtained:
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Check wire connections to relay carrier (see wiring diagram).
With Generic Scan Tool
Engine Control Module (ECM), checking voltage supply
Recommended special tools and equipment
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V.A.G 1526 multimeter or V.A.G 1715 multimeter
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V.A.G 1594 Connector test set
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Wiring diagram
Test requirements