A8L Quattro Sedan W12-6.0L (BSB) (2005)
‹› Cylinder bank 2 with cylinders 7 through 12 is located at left in direction of travel.
‹› Mass Air Flow (MAF) sensor 2 (G246) with cylinder bank 2 Intake Air Temperature (IAT) Sensor 2 (G299) is located at right in direction of
travel.
Cylinder bank 1
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Connect test box to Engine Control Module (ECM) (J623) wiring harness on connecting test box for wiring test, refer to Repair Manual,
Cylinder bank 2
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Connect test box to Engine Control Module (ECM) 2 (J624) wiring harness on connecting test box for wiring test.
Cylinder bank 1 and 2
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Check wires between test box and 5-pin connector to Engine Control Module for open circuit according to wiring diagram.
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Terminal 3 + socket 27
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Terminal 4 + socket 53
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Terminal 5 + socket 29
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Wiring resistance: max. 1.5 ohms
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Check wires for short circuit to each other, to vehicle Ground (GND) and to B+. Specification: infinite ohms
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Erase DTC memory of Engine Control Module => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Testing and Inspection/Scan Tool Testing
and Procedures/Diagnostic Modes 01 - 09, Diagnostic mode 4: Reset/erase diagnostic data.