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Throttle Position Sensor: Testing and Inspection

Throttle Position Sensor/Accelerator Pedal Position Sensor 2, Checking

Observe all safety precautions: => [ Safety Precautions ] See: Computers and Control Systems/Service Precautions/Safety Precautions

View clean working conditions: => [ Clean Working Conditions ] See: Computers and Control Systems/Service Precautions/Clean Working
Conditions

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools, testers and auxiliary items required

‹› multimeter.

‹› Wiring diagram

Test requirement

‹› The Motronic Engine Control Module (ECM) ( J623) fuses OK.

‹› Battery voltage at least 12.5 volts.

‹› All electrical consumers such as, lights and rear window defroster, switched off.

‹› Vehicles with automatic transmission, shift selector lever into position " P" or "N".

‹› A/C switched off.

‹› Ground (GND) connections between engine/transmission/chassis OK.

‹› 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. Refer to => [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/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 ) 6-pin electrical harness connector - 2 -.

Throttle Position Sensor|Locations|Page 4337 > < Throttle Position Sensor|Locations