Allroad Quattro V8-4.2L (BAS) (2004)
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Check following line connection for interruption and short-circuit after mass and/or plus:
Connector terminal
Test box V.A.G 1598/22 Socket
5
114
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Repair short circuit and/or circuit malfunction using circuit diagram
Diagnosis circuit, checking
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Connect test box VAG1598/31 to the circuit harness connector; do not connect the ECM. Connect the ground clip of the test box to ground (not
shown in illustration).
WARNING: To avoid damaging electrical components, select the appropriate measurement settings on the measuring device before connecting to the
components.
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Check the following circuit connections for open circuits and shorts to ground and/or battery positive (+):
Connector terminal
Test box VAG 1598/31 Socket
2
74
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Repair the open circuit and or the short according to the schematics.
Voltage Supply For Fuel Pump (FP) -G6- (of The Fuel Pump (FP) Control Module -J538-), Checking