Mechanics

SENSOR PROBLEM CODES U1110 AND U1120

2008 Dodge Truck • 68,000 miles

I have an 2008 ram 1500 4.7 crew cab 4x4.
I have a lit ABS light, parking brake light, no speedo or odometer.
I believe it to be one of the speed sensors, but which one?
It has 2 in the tranny, and one on each wheel.
I recently put in larger tires, new rims, and the shop added a spacer/ I changed the rear brake pads, and one of the front hub bearings.
None of those changes caused the lights to come on, they just did on a regular highway trip to pay the electric bill.
What part do I need to replace, and how can I turn off the ididot lights.
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Kevi1968
March 14, 2012.




There is a sensor on top of the differental. It is the most common failure for the speedo and abs light. Otherwise, you need a shop to trace the wiring to determine the failure.

Roy
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ASEMaster6371
Mar 14, 2012.
No the 2008 does not have a sensor on top of the differential.
It has the speed sensors on both of the rear wheels instead


Tiny
Kevi1968
Mar 14, 2012.
Ok, then you need either a shop with a scan tool or one you have that reads these codes to help track this down. The code will identify the area of the bad sensor then you have to check voltages, ohm out the harness and look for connection issues.

Roy


ASEMaster6371
Mar 14, 2012.
I gave the codes in the topic, take it to a shop is not a valid solution.
If you don't know what the codes stand for you should not have replied to my post. All you seem to be after is my generous two dollar donation, and not in helping me out here!


Tiny
Kevi1968
Mar 15, 2012.
U1110 means lost wheel speed message.
U1120 means lost wheel distance message.
Refer to these drawings for more info on where to look.


Rivermikerat
Mar 24, 2012.

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