Instrument panel problems


Asked by Oct 16, 2016 at 02:20 PM about the 1999 Dodge Ram 1500 2 Dr ST 4WD Extended Cab LB

Question type: Maintenance & Repair

I have a 99 Dodge Laramie 1500 series extended cab
pickup, the instrument panel everything except for the
speedometer is bouncing back and forth. I replaced the
instrument panel and it is still doing the same thing, any
advice on what to do next?

3 Answers


You may have a signal Buss connection problem, check all of the instrument panel circuits including the grounds, if you do not locate a problem there then onto the ECM and BCM circuits.


Checking the grounds, lights and all are bright, where do I find ecm and bcm circuits? What do I look for with them?


Lights are separate circuits, ground connections for the dash will be on the dash support rails attached to both drivers and passenger side of the body on the inside, check for a clean and tight connections, the ECM, BCM connections will be on the engine, firewall, and the all through the the control systems harness, best to have a wiring diagrams and componet locator on hand as it can be a real time saver in locating connection points. Not an eaisy or fast job.

Your Answer

Add photo

Related Questions

  • instrument panel, taillights & backup lights not workinh 1 answer

    We have a 1998 dodge ram 1500 ST & the other night, I turned on the headlights & everything worked. Then the instrument panel lights went out. When we stopped, we realized that we had no taillight...

    1998 Dodge Ram 1500 2 Dr ST Standard Cab SB


    Maintenance & Repair

  • Dash lights went out, fuse 18 keeps blowing, yet the instrument cluster works... 1 answer

    Hello, Im a US Marine and dont know alot about automotive but Im not completly numb... My father in-laws 2003 4x4 dodge pick has been blowing fuse #18 which when blown or removed the dash lights go ou...

    2007 Dodge Ram 1500 ST Quad Cab 4WD


    Maintenance & Repair

  • Why won't the interior lights come on when driver's side doors are opened? 8 answers

    Over the period of a year, my interior lights would flicker on/off depending on position of the driver's door, and ultimately stopped coming on when the driver's door was opened. Just recently this e...

    2005 Dodge Ram 1500 Laramie Quad Cab LB


    Maintenance & Repair

  • 2006 Dodge Ram 1500 Won't Start 5 answers

    Ran fine all day than went to run an errand and when you turn the key it won't start and there is a clicking sound under the hood. Inside lights and electronics go haywire along with the instrument pa...

    2006 Dodge Ram 1500 Laramie Quad Cab LB


    Maintenance & Repair

  • what size are the bulbs in the instrument cluster and where can i find blue LED ones? 1 answer

    I have 2 bulbs burnt out in the instrument cluster so I'm looking to replace them but also upgrade to LED and change the color to blue. Problem is that I can not find what I need and all my local au...

    2006 Dodge Ram 1500 SLT Quad Cab LB 4WD


    Car Customization

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 13,809 nationwide Ram 1500 listings starting at $995.


Search Dodge Ram 1500 Questions

Dodge Ram 1500 Experts

#1 Dan Connell
Dan Connell
Reputation 5,280
#2 pudgybear
Reputation 5,000
#3 dandyoun
Reputation 4,670
View All

Related Models For Sale

Used Ford F-150"
3,174 Great Deals out of 216,366 listings starting at $1,900
Used Chevrolet Silverado 1500"
2,463 Great Deals out of 143,820 listings starting at $1,995
Used Dodge Ram 2500"
153 Great Deals out of 5,734 listings starting at $2,289
Used GMC Sierra 1500"
1,023 Great Deals out of 56,283 listings starting at $2,499
Used Toyota Tundra"
608 Great Deals out of 26,489 listings starting at $2,500
Used Toyota Tacoma"
622 Great Deals out of 30,180 listings starting at $2,850
Used Dodge Dakota"
163 Great Deals out of 4,813 listings starting at $900
Used Ford F-250 Super Duty"
456 Great Deals out of 42,789 listings starting at $2,250
Used Dodge Ram 3500"
106 Great Deals out of 2,479 listings starting at $4,995
Used Ford Mustang"
715 Great Deals out of 41,252 listings starting at $900
Used Jeep Wrangler"
441 Great Deals out of 16,281 listings starting at $3,400

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
89 Great Deals out of 1,576 listings starting at $4,695
2009 Dodge Ram 1500 For Sale
53 Great Deals out of 1,303 listings starting at $5,999
2008 Dodge Ram 1500 For Sale
79 Great Deals out of 1,734 listings starting at $4,490
2007 Dodge Ram 1500 For Sale
69 Great Deals out of 1,709 listings starting at $3,595
2006 Dodge Ram 1500 For Sale
65 Great Deals out of 1,599 listings starting at $1,795