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.
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Bridge terminals 1 + 3 of connector using respective adapter cables while observing the indication on display.
If indication jumps to approx 140°C:
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End diagnosis and switch ignition off.
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Replace corresponding Mass Air Flow (sensor with Intake Air Temperature sensor.
‹› Intake Air Temperature (sensors are components of Mass Air Flow sensor and cannot be replaced individually.
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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.
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Generate readiness code => [ Readiness Code, Generating ] See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes.
If indication remains at approx -40 °C:
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End diagnosis and switch ignition off.
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Check wires to control module according to wiring diagram.
°Continuation of Test If Indication is Approx. 140 C:
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Disconnect corresponding 5-pin connector from Mass Air Flow (MAF) sensor with Intake Air Temperature (IAT) sensor to be tested.