Q7 Quattro V6-3.6L (BHK) (2007)
Throttle Position Sensor: Testing and Inspection
Throttle Position (TP) Sensor G79 / Accelerator Pedal Position Sensor 2 G185, Checking
Special tools, testers and auxiliary items required
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Multimeter.
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Wiring diagram
Test requirement
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The Engine Control Module (ECM) J623 fuses OK.
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Battery voltage at least 12.5 volts.
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All electrical consumers such as, lights and rear window defroster, switched off.
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Vehicles with automatic transmission, shift selector lever into position "P" or "N".
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A/C switched off.
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Ground (GND) connections between engine/transmission/chassis OK.
NOTE: Use only gold-plated terminals when servicing the electrical harness connector terminals in Throttle Position (TP) Sensor G79 /
Accelerator Pedal Position Sensor 2 G185.
Test procedure
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Perform a preliminary check to verify the customers complaint. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Initial Inspection and Diagnostic Overview/Preliminary Check
Start diagnosis
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Remove the drivers side storage compartment.
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Disconnect the Throttle Position (TP) Sensor G79 / Accelerator Pedal Position Sensor 2 G185 electrical harness connector - Arrow -.
Checking voltage supply and wiring
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Switch the ignition on.
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Using a Multimeter, check the following wiring connections for voltage.
Throttle Position (TP) Sensor
Specified value
G79 / Accelerator Pedal Position
Sensor 2 G185 electrical harness
connector terminal
1 to Ground (GND)
about 5 V
1 to 5
about 5 V
2 to Ground (GND)
about 5 V