Checking Window Regulator Current Draw and Stall Current

89audi09

Applies To: All Audi From 1984 m.y.

Subject: Window regulator current draw and stall current, checking


Number: Group:

89-01
64
November 24, 1989


Body ^ Interior





Window regulator current draw and stall current, checking (regulator installed)

Note

Check current draw and stall current prior to repair or replacement of window regulator motors.

Checking current draw

^ connect volvamperage tester Sun VAT 40, or VAT 60 or equivalent
^ Sun VAT 60 shown
^ connect inductive pick-up to battery ground strap
^ switch ignition ON
^ press operating switches for window regulators one after the other (open or close)
^ measure current draw during window switch operation
^ must be 6-12A (during window travel)

If NO, replace or repair window regulator motor

Note

The tester always indicates a current reading when ignition is switched on; this reading varies according to operating conditions, model type and equipment.


Checking stall current

^ zero tester to compensate for other electrical consumers
^ after window is at top or bottom and switch depressed, current must be between 10-15A (stall current)
^ if NO, replace or repair window regulator motor