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Passat Sedan V6-3.6L (BLV) (2008)

Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Electronic Throttle Control Module > Component Information > Locations > Page 2590

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Electronic Throttle Control Module: Testing and Inspection

Diagnostic Procedures

Throttle Valve Control Module, Checking

Special tools, testers and auxiliary items required

‹› multimeter.

‹› Wiring diagram.

Test requirements

‹›  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.

‹› Throttle valve must not be damaged or dirty.

‹› Coolant Temperature at least 80° C.

Test procedure

-

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

-

Observe Clean Working Conditions. Refer to => [ Clean Working Conditions ] See: Computers and Control Systems/Service Precautions/Clean
Working Conditions

-

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

Function

Throttle valve operation occurs by an electric motor (Throttle Drive (for Electronic Power Control (EPC)) (G186)) in Throttle Valve Control Module
(J338). It is operated by Motronic Engine Control Module (ECM) (J623) according to specifications of Throttle Position (TP) Sensor
(G79)/Kickdown Switch/Closed Throttle Switch (G185).

Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Electronic Throttle Control Module > Component Information > Locations > Page 2590

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