Touareg 2 V6-3.6L (BHK) (2008)
Variable Induction Control Module: Testing and Inspection
Throttle Valve Control Module, Checking
‹› Use only gold-plated terminals when servicing terminals in harness connector of Throttle Valve Control Module (J338).
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
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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
Function
Throttle valve operation occurs via 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).
Components of Throttle Valve Control Module (J338):
‹› Throttle Drive (for Electronic Power Control (EPC)) (G186)
‹› Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) (G187)