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02-07-2014, 10:46 PM | #1 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Transmission senor
OK so the tune is done. I need to know if I can get the transmission temperature reading from the 4l80e wiring are not. I would like to have it on the Scan gauge if possible. I have the code for it entered and the gauge set but it has no reading. This is for a 2003 2500HD 6.0.
According to Scan Gauge they swapped codes for everything in 2003. I have tried both sets of codes but no good. Bruce said without a Vin number for the vehicle there is noway to know.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
02-07-2014, 11:04 PM | #2 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
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Re: Transmission senor
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
02-08-2014, 01:37 AM | #3 |
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Join Date: Sep 2005
Location: Lewisville, Nc
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Re: Transmission senor
Trans should have a sensor in it already.
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
02-08-2014, 04:07 AM | #4 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Transmission senor
I'm not positive how it works. I know it can throw over-temp codes, and HPT can read the info.
We've installed a trans temp gauge before on a diesel truck with the 80e....there are unused bungs on the side of the case which are for testing pressure or something. You can use the 1/8" hole to connect the sender for Autometer-type gauges.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
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02-08-2014, 07:39 AM | #5 |
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Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
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Re: Transmission senor
Yes I have read there is a test port right above the gear selector on drivers side. I have also herd that the transmission should have the temp senor in it. Bruce said he was going to findout more for me but I was wanting to see if I could find anything. I figured the experts here would know more about it. I'm going to go by the transmission shop one day next week and findout what they have to say about it.
I found this too! http://www.trucktransdiag.com/downlo...-tech-info.pdf From what I have found this morning googling it should have a senor in it. I have to figure out how to get the info now and if it was turned off when they did the wiring and reflash.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. Last edited by Andy4639; 02-08-2014 at 08:29 AM. |
02-08-2014, 11:24 AM | #6 |
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Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,858
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Re: Transmission senor
I looked in the tune for a 2500 HD with a 4L80 but didn't see anything that addressed the temp in the tranny. I know my 6L80 has all those features and I can see the temp on my DD VHX gauges as well as my scanner. If you guys figure something out, let me know and I will check again.
Edit: Ask Clinbarger, he's the resident tranny expert!
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
02-08-2014, 01:35 PM | #7 |
Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Transmission senor
My Aeroforce Interceptor will display trans temp.
Only "sensors" on my 4L85e are the 2 VSS?
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
02-08-2014, 02:12 PM | #8 |
Registered User
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
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Re: Transmission senor
Have you tried another year? I don't think your engine is an 03. Try 01 and see what happens? Some 2500 and up trucks have a trans temp guage so the trans may have the sensor already, but its most likely a serial data gauge, but I would think a Scangauge should read it if its there.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
02-08-2014, 05:13 PM | #9 |
Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Transmission senor
both my '68 with it's '09 LY6 w/4L85e... and my TBSS with '06 LS2 w/4L70e... I've been able to just plug in, set it, and pull trans temp from the diagnostic port, w/o adding/changing anything to either system.
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
02-08-2014, 05:46 PM | #10 |
Registered User
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
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Re: Transmission senor
Hi Andy, just looked up your info request on a 2003 2500hd 6.0 on alldata pro version and the trans temp thermistor info goes to pcm and is available at the instrument cluster through the class2 serial data. This serial data carries other info, volt gauge info, etc. Your posted link info showed the 2 wires related to trans temp info on a 5 volt reference line to pcm. The pcm analizes all the info needed and sends it out on serial data line. I always compared the serial data line to a phone line, transmitter, receiver and more than one person on-line processing the info. Good luck, Brian F.
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02-09-2014, 02:21 AM | #11 |
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Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: Transmission senor
On later 4L80E's the Temp Sensor is integrated into the internal harness.
Even if the sensor/wiring had an Open circuit it would read "Low" around -40. If the sensor/wiring had a Short it would read "High" around 300 degrees. First thing I would do is hook-up a real scan tool a see what the Trans Temp reads. Circuit Diagnostics.... Unplug the Trans connector, Key on, Check for 5 volt reference on Pin L, Check for Ground on Pin M. This will check the harness side. See Connector View. On the Trans side, Check Resistance between Pins L & M, See resistance chart. |
02-09-2014, 07:06 PM | #12 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: Transmission senor
Thanks guy's. Sorry I been out of town since early yesterday for a wedding. No computer time. Just got back. Will check tomorrow on the scanner tool.
I sure hope I can figure it out. It would be nice knowing trans temp.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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