A8L V8-4.2L (BFM) (2004)
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Connect V.A.G 1598/31 test box to wiring harness of Engine Control Module (ECM) See: Computers and Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting
The following wire connections must be checked for short circuit to B+, Ground (GND) and for open circuit
Connector for Mass Air Flow
VAG1598/31 test box terminal
(MAF) Sensor -G70-
3
27
4
53
5
29
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Check all wires for short circuit to each other.
Specified value: Infinity Ohms (no continuity)
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If voltage supply and wire connections are OK, replace Mass Air Flow (MAF) sensor.
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Read readiness code If DTC memory was erased, readiness code must be generated again