A8L Quattro Sedan W12-6.0L (BSB) (2005)
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Slowly depress accelerator pedal up to Wide Open Throttle (WOT) stop while observing the percentage display. The percentage display must
increase uniformly.
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Check specified value of throttle valve position (absolute) at Wide Open Throttle (WOT) stop:
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End diagnosis and switch ignition off.
If specifications are not obtained:
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Disconnect corresponding 6-pin connector from throttle valve control module to be tested:
‹› Cylinder bank 1 with cylinders 1 through 6 is located at right in direction of travel.
‹› Throttle Valve Control Module (J338) of cylinder bank 1 is located at left in direction of travel.
‹› Cylinder bank 2 with cylinders 7 through 12 is located at left in direction of travel.
‹› Throttle Valve Control Module 2 (J544) of cylinder bank 2 is located at right in direction of travel.
Check Resistance
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Check resistance of throttle valve drive in throttle valve control unit between terminals 3 + 5, specified value: 1.0 to 5.0 ohms
If specification is not obtained:
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Replace corresponding throttle valve control module.
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Erase DTC memory of Engine Control Module => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Computers and Control Systems/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: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes.
If specification is obtained: