Why does the ABS, Brake and Check Engine light all stay on and the Speedometer doesn't register till 25 mph.

Asked by May 22, 2013 at 01:16 PM about the Dodge Ram 1500

Question type: Maintenance & Repair

This is a 1999 Dodge Ram 1500 SLT, 5.9 engine. The ABS, Brake and Check Engine
light all stay on and the speedometer doesn't register till you get around 25mph and also
drops out when approaching a stop. All was fine until I shifted from 2 wheel to 4 wheel
and also fueled up. The check engine code was P0138, O2 sensor down stream. Any
suggestions?

4 Answers

Could be an unreliable ground...trace the black battery cable to where it attaches to the chassis/frame disconnect and wirebrush the lug and chassis clean and re-attach it...this action will reset the codes...with any luck~

1 of 1 people found this helpful.

you changed the defecive 02 sensor down the exhaust pipe...yes~ you should be okay then~

hate to suggest this, just try a "global reset" if it fails pick up another ECM---your speedo troubles and dash complications should vanish...if the reset ain't doin' it~

1 of 1 people found this helpful.

After replacing the battery because of age, I am seeing this same condition. I will check ground wires and reset. Any other suggestions?

Your Answer

Add photo

Related Questions

  • Abs and brake lights stay on 8 answers

    2007 dodge rm 1500 5.7 Brake and abs lights came on. I changed the rear abs/wheel speed sensor and battery. Problem continues. Sometimes the lights go out when truck is cool and come back on within ...

    2007 Dodge Ram 1500 SLT Quad Cab 4WD

    -

    Maintenance & Repair

  • shift sensor 2 answers

    My 2000 Dodge Ram 1500 4×4 Quad Cab SLT will not shift out of 25 mph but goes to 3000 rpm. Is this a shift sensor problem and/ or speed sensor cuz abs light on too. If so where is sensors located?

    2000 Dodge Ram 1500

    -

    Maintenance & Repair

  • I have a 2003 dodge ram 1500 4x4 my abs turns on when I step on the brake usally when I am going 3-5 mph 2 answers

    I have changed the speed sensor in the rear end cleaned the sensors at each front bearing at rotor. Also there is no abs light on at dash. But the problem is still there abs coming on at very slow s...

    2003 Dodge Ram 1500

    -

    Maintenance & Repair

  • truck wont stay running 88 answers

    I have a 2001 dodge 1500 pickup. The truck fires right up but will not stay running unless I keep my foot on the gas. As soon as I let off the throttle it dies instantly without sputtering. Gauges rea...

    2001 Dodge Ram 1500

    -

    Maintenance & Repair

  • Hemi MDS 231 answers

    I was wondering if anyone other than me absolutely hates the MDS system in their Hemi engines. Does anyone know how to disable it without having to by a Diablo Predator tuner? I know you can cut and c...

    Dodge Ram 1500

    -

    Car Customization

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 11,152 nationwide Ram 1500 listings starting at $700.

ZIP:

Search Dodge Ram 1500 Questions

Dodge Ram 1500 Experts

#1 Dan Connell
Dan Connell
Reputation 6,100
#2 pudgybear
pudgybear
Reputation 5,880
#3 dandyoun
dandyoun
Reputation 5,310
View All

Related Models For Sale

Used Ford F-150
2,198 Great Deals out of 206,316 listings starting at $1,499
Used Chevrolet Silverado 1500
1,716 Great Deals out of 175,753 listings starting at $1,250
Used Ram 1500
927 Great Deals out of 113,959 listings starting at $6,386
Used Dodge Ram 2500
160 Great Deals out of 5,240 listings starting at $3,495
Used GMC Sierra 1500
824 Great Deals out of 68,200 listings starting at $2,484
Used Toyota Tundra
444 Great Deals out of 34,312 listings starting at $2,700
Used Toyota Tacoma
544 Great Deals out of 40,814 listings starting at $2,495
Used Dodge Charger
405 Great Deals out of 28,172 listings starting at $1,988
Used Ford F-250 Super Duty
345 Great Deals out of 46,938 listings starting at $1,895
Used Dodge Challenger
183 Great Deals out of 24,169 listings starting at $8,800
Used Dodge Dakota
106 Great Deals out of 3,781 listings starting at $1,680
Used Nissan Titan
170 Great Deals out of 19,555 listings starting at $3,000
Used Ford Mustang
474 Great Deals out of 45,735 listings starting at $1,999
Used Dodge Ram 3500
90 Great Deals out of 2,181 listings starting at $4,999
Used Jeep Wrangler
277 Great Deals out of 18,163 listings starting at $2,950

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.