General Information

Headlamp Washer System

• Headlamp cleaning system function can be checked via output Diagnostic Test Mode (DTM) of Vehicle Electrical System Control Module (J519). Refer to => [ Vehicle Electrical System, Output Diagnostic Test Mode ] Scan Tool Testing and Procedures.

• Activation time period and delay time up to activation of Headlamp Washer Pump (V11) can be adjusted. Refer to => [ Headlamp Washer System Activation Time, Adapting ] Testing and Inspection.

• Additional information:

Refer to Self Study Program No. 297; The Touareg.

Refer to Self Study Program No. 298; The Touareg Electrical System.

Refer to the Owner's Manual.

General Description

After switching the ignition on, headlamp lenses are also cleaned on first operation and then on every fifth operation of windshield wiper lever. To do this, windshield wiper lever must be pulled toward steering wheel for a minimum of 0.5 seconds with low-beam or high-beam headlamps switched on.

After assembly work or when first operating headlamp cleaning system, it must be ventilated to ensure proper function. Refer to => [ Headlamp Washer System, Bleeding ] Headlamp Washer System, Bleeding.

DTC Recognition and Display

The Vehicle Electrical System Control Module (J519) is equipped with On Board Diagnostics (OBD) which assists in troubleshooting.

For troubleshooting, use Vehicle Diagnostic, Testing and Information System (VAS 5051A) in operating mode "Guided Fault Finding".