Quote:
Originally Posted by Gary Otto
The rear window washer and wiper are controlled by the rear door ECU...along with the rear window. If the battery is disconnected (or something else ineterferes) the ECUs must be reinitialized by pushing and holding the rear window down button and then pushing and holding the rear window up button to reinitialize the ECU. same thing with sunroof and drivers window....thru another ECU.
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Good info, thx. I was perplexed about ours not working recently and then as a last resort put the rear window down and then up, and voila it started to work again! I have been disconnecting the battery lately to clear a CEL issue, and that would seem to match the explanation given above.
Mike