A8L Quattro Sedan W12-6.0L (BSB) (2005)
Accelerator Pedal Position Sensor: Testing and Inspection
Diagnostic Procedures
Throttle Position Sensor, Checking
Both Throttle Position (TP) Sensor (G79) and Accelerator Pedal Position Sensor 2 (G185) are located at the accelerator pedal and communicate the
driver's intentions to the ECMs completely independently of each other. Both sensors are integrated into one housing.
‹› Observe safety precautions => [ Safety Precautions ] See: Service Precautions/Safety Precautions.
‹› Observe rules for cleanliness => [ Clean Working Conditions ] See: Service Precautions/Clean Working Conditions.
‹› When servicing terminals in the harness connector for the Intake Air Temperature (IAT) sensor, use only gold-plated terminals.
Special tools, testers and auxiliary items required
‹› Hand multimeter (V.A.G 1526) or Multimeter (V.A.G 1715)
‹› Test adapter kit (V.A.G 1594)
‹› Wiring diagram
‹› Battery voltage (both batteries) must be at least 11.5 Volts.
‹› All electrical consumers such as, lights and rear window defroster must be switched off.
‹› Parking brake must be engaged.
‹› For vehicles with automatic transmission, selector lever must be in " P".
‹› If the vehicle is equipped with an A/C system, this must be switched off.
‹› The Ground (GND) connections between engine and body must be OK.
‹› Fuses in right instrument panel fuse holder must be OK:
Right instrument panel fuse holder
Test Sequence
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Remove cover in footwell (driver side).
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Disconnect 6-pin connector from Throttle Position (TP) Sensor.
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Switch ignition on.