4wd Light Continues to Flash 2011 Ram

02-18-2006, 04:31 PM	#1
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140	Flashing 4x4 lights on dash Hi everyone....was wondering if anyone could help....here's the lowdown on what's happened so far....my check engine light came on last week along with my VSC and VSC OFF light....it turned out to be an o2 sensor that needed replacing....yesterday morning on the way to work I tried putting my truck into 4X4 but the two lights on the dash (the 4x4 and the 4x4 with the 'x' on it) kept flashing. I figured that it was related to the check engine light VSC light problem and that when I replaced the o2 sensor this morning that everything would reset but the 4x4 lights keep flashing. I've tried unhooking the battery to reset the computer but no luck. Also, it will not shift into 4-high or 4-low right now.....any help would be greatly appreciated....thanks everyone! 2003 SR5 4X4 27,000 miles.
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02-18-2006, 04:53 PM	#2
Member Join Date: Jan 2005 Location: Ventura County Posts: 284
Member Join Date: Jan 2005 Location: Ventura County Posts: 284	__________________ 2005 Sport V-8 4X4 Natural White JBL Line upon Line, Line upon Line, Precept upon Precept, Precept upon Precept, Here a Little, There a Little
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02-18-2006, 05:10 PM	#3
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140	I hope not!!!!.....I'm pretty sure it's related to the o2 sensor that went because the 4x4 shifting was working fine before that. I followed the sunvisor directions and tried unhooking the battery to reset the computer. I thought I'd pick everyone's brain before I tried anything else. Thanks for the $3800.00 scare though.....
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02-19-2006, 02:58 AM	#5
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140	haven't gone back to the dealer since replacing the o2 sensor....the CEL and the VSC lights reset themselves right after the o2 sensor change......what does the OBDII code mean?....if it's a simple thing like that for my 4x4 to work again then I guess I'll have to get them to do it.... __________________ Americo -2003 Black SR5 V6 4x4 Sport Edition
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02-19-2006, 03:01 AM	#6
Senior Member Join Date: Jan 2003 Location: Sunny Socal Posts: 1,657
Senior Member Join Date: Jan 2003 Location: Sunny Socal Posts: 1,657	The CEL (Check Engine Light) is on right? If so, this means that it is throwing an error code (bad O2 sensor in your case). To clear the CEL, you need to reset the OBDII (it's an ECU monitoring the motor). Dealer should clear it for free. If they charge you, give them the finger ;) good luck edit: your 4x4 system will still function.
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02-19-2006, 03:06 AM	#7
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140	no...the two 4x4 lights are flashing on my dash....the solid one and the one with the 'x' through it....my 4x4 doesn't engage now because of this....the CEL light and the VSC lights are off now that I replaced the bad o2 sensor..... __________________ Americo -2003 Black SR5 V6 4x4 Sport Edition
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02-19-2006, 03:09 AM	#8
Senior Member Join Date: Jan 2003 Location: Sunny Socal Posts: 1,657
Senior Member Join Date: Jan 2003 Location: Sunny Socal Posts: 1,657	Do you have a local Autozone or something similar that has an OBDII tool/checker? Maybe they can see if your ECU is throwing any codes causing your 4x4 and the vsc to light up. I've had a similar problem but ended up being a bad sensor on the throttle body (completely unrelated). Oddly I was still able to use my 4wd (full time) hi and lo. I'd take it into the dealer if all else fails. Good luck
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02-19-2006, 03:15 AM	#9
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140	thanks....I'll investigate who can check the codes out for me....might be just as cheap for the dealer to diagnois it for me like they did the o2 sensor......by the way, very cool looking truck.....looks good all done up on the beach....wonder how it would handle up here in all this snow?....enjoy the sun..... __________________ Americo -2003 Black SR5 V6 4x4 Sport Edition
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02-20-2006, 11:56 AM	#10
Member Join Date: Dec 2005 Location: NJ Posts: 57
Member Join Date: Dec 2005 Location: NJ Posts: 57	I was in the mountains this weekend and switched to 4hi, the 4wd light and 4wd with the x through it flashed for a few minutes until it was able to engage, seemed like it took longer than normal, but it did eventually get into 4hi. didn't see any check engine light though. FWIW.
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02-20-2006, 12:08 PM	#11
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140	....I'm heading to the dealership tonight after work to have them scope it and do the diagnostics on it.....I'll let everyone know what they say and how much it'll cost....... __________________ Americo -2003 Black SR5 V6 4x4 Sport Edition
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02-21-2006, 07:48 AM	#12
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140
Member Join Date: Feb 2006 Location: London Ontario Canada Posts: 140	Well, the news is bad and good I guess....it took them a bit to find that the differential 'vacuum actuator' was no good. It was full with water and the front differential fluid was totally contaminated with water too and looked like a thick grey soup instead of clean 90 weight oil..the rear differential fluid looked OK though.....(they changed the front fluid and will change the back differential fluid Wednesday when I go back)...they've ordered the part, #4140035031, and should have it covered under warranty. As for the water contamination, the seals all looked good, the tranny fluid looked good and there was no other signs of flooding as their first suggestion was that I went off roading in water....not likely......I have to say that they have treated me fantastic so far and haven't charged me a dime...yet. If anything else pops up I'll keep you updated. __________________ Americo -2003 Black SR5 V6 4x4 Sport Edition
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02-01-2012, 11:38 PM	#14
Junior Member Join Date: Feb 2012 Posts: 1
Junior Member Join Date: Feb 2012 Posts: 1	2005 toyota 4runner limited Hi everyone, I have a 2005 4runner limited , Bought it about a month ago from the first owner. It has 90k . We normally don't get much snow around here .Last week finally we got some snow and I used the 4x4 for the first time and everything was fine. 3 days ago I started up the car and now 4x4 light along with the VSC light are flashing and I my 4x4 does not engage anymore. Its basically stuck in H2.Any help would be greatly appreciated.thanks
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02-02-2012, 10:59 AM	#15
Member Join Date: Jan 2012 Location: Albuquerque, NM Posts: 364	Quote: Originally Posted by zareh Hi everyone, I have a 2005 4runner limited , Bought it about a month ago from the first owner. It has 90k . We normally don't get much snow around here .Last week finally we got some snow and I used the 4x4 for the first time and everything was fine. 3 days ago I started up the car and now 4x4 light along with the VSC light are flashing and I my 4x4 does not engage anymore. Its basically stuck in H2.Any help would be greatly appreciated.thanks Did you see the resolution to the OP? You might have gotten snow/water in your diffs and they just need to be flushed.
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