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Old 11-28-2013, 12:00 PM
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SERVICE 4WD SYSTEM Sensors

What are all the sensors that can trigger the "SERVICE 4WD SYSTEM" error message? I do NOT have the Quadra-Trac II system if there are additional sensors specific to it.
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Old 11-28-2013, 05:32 PM
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Re: SERVICE 4WD SYSTEM Sensors

they run along the suspension and plug into the hubs
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Old 11-28-2013, 05:55 PM
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Re: SERVICE 4WD SYSTEM Sensors

Quote:
Originally Posted by Scottina06 View Post
they run along the suspension and plug into the hubs
One per wheel? ABS sensors in the same place?
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Old 11-28-2013, 06:01 PM
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Re: SERVICE 4WD SYSTEM Sensors

yes...same thing. The abs sensors also serve as the awd system sensors sort of
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Old 11-28-2013, 06:53 PM
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Re: SERVICE 4WD SYSTEM Sensors

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Originally Posted by Scottina06 View Post
yes...same thing. The abs sensors also serve as the awd system sensors sort of
Maybe that's why I couldn't find part numbers for the 4WD sensors. Guess I'll start looking at/for the ABS sensors.
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Old 11-28-2013, 07:01 PM
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Re: SERVICE 4WD SYSTEM Sensors

they are like $32 each or so. Run along the knuckle and plug into hub. Very easy replacement.
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Old 11-28-2013, 07:08 PM
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Re: SERVICE 4WD SYSTEM Sensors

Is this what I'm looking for? The right rear looks pretty tight compared to the other side.
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Old 11-28-2013, 07:12 PM
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Re: SERVICE 4WD SYSTEM Sensors

which one do you need to replace?
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Old 11-28-2013, 09:57 PM
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Re: SERVICE 4WD SYSTEM Sensors

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Originally Posted by Scottina06 View Post
which one do you need to replace?
The right rear looks like it's been pulled tight so maybe that one. Truth is I don't know, but if the sensor is only $13 for each rear or even $30 for each front just throwing parts would be cheaper then taking it to the dealer.
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Old 11-28-2013, 10:47 PM
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Or find someone who has a code reader. Local garage, body shop etc.
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Old 11-29-2013, 07:40 AM
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Quote:
Originally Posted by Scottina06 View Post
Or find someone who has a code reader. Local garage, body shop etc.
please correct me if I'm wrong, but don't you need the special dealer only star scan tool for the four wheel drive and ABS system codes?
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Old 12-02-2013, 12:12 PM
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Re: SERVICE 4WD SYSTEM Sensors

Quote:
Originally Posted by brubakes View Post
please correct me if I'm wrong, but don't you need the special dealer only star scan tool for the four wheel drive and ABS system codes?
If you're getting the Service 4WD message, you can probably do the key flick trick and get the DTC to display the code. That should at least let you identify L or R side. Without the StarScan or a tuner there is no way to differentiate between F/R. However, someone posted that you could measure the resistance of the sensors if you pulled them to tell whether they're still good or not.
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