Quote:
Originally Posted by shadow247
The first pic shows the ADD actuator on the front diff.
2nd pic shows the Tcase actuator. You can try manually actuating the Tcase actuator.
Are you certain the Frt Diff Actuator is working properly. Mine was stuck in 4wd with a flashing light, ended up being the Frt Diff Actuator. The Tcase unlocks AFTER the 4wd computer sees that the Frt Diff has unlocked, so if it's stuck in a half unlocked state like mine was, it will never get the Open Circuit signal to unlock the diff.
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Thank you for your detailed reply. I have a 1999 runner with the familiar mechanical transfer case. This is the first time I’ve ever worked on a runner with the electrically shifted case. The diagnosis was made by an independent shop run by a certified Toyota factory technician. He supposedly used a scanner to diagnose the actuator malfunction. He did it as a favor for my friend, who is the owner of the 2002 runner. Instead of relying on his diagnosis, I should use the information that you have provided here to do a more extensive examination, ie., to make sure that the ADD is working properly before running off and buying a transfer case motor actuator.
