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Single Range (Push Button) 4 Wheel Drive System Trouble Shooting
Posted 08 November 2003 - 08:42 AM
This article will be for the Ultimate Subaru Repair Manual if any interest is shown.
I ask you to please give any pertinent comments or suggestions.
Here is the beginning of the article.
This treatise is referring to the single range push button four-wheel drive system only.
This system incorporates a single vacuum controlled diaphragm to engage the rear drive of the transaxle.
This diaphragm is a push pull type where the vacuum is applied to one side or the other to instigate the push or the pull on the lever that shifts the rear drive in and out of service. The control of this diaphragm is the job of two solenoids, which in turn are controlled by the four-wheel drive push button.
The four-wheel drive push button is a single pole double throw switch. This means even in the 4 wheel drive “Off” position the switch still makes contact to one of it’s terminals................
Posted 08 November 2003 - 11:07 AM
Posted 24 September 2009 - 05:58 AM
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