By Jon DeLoach
here are some picture and videos of how i installed my upfitter aux switches to my 2017 silverado Texas edition truck which DID NOT com with them nor does it have the relays fuses or switch wires in the harness.
keep in mind the switches are GROUND or NEGATIVE switching. which means they DO NOT HAVE 12v ON THEM. DO NOT PUT 12V ON THE WIRES YOUR ABOUT TO INSTALL.
i had to get a new connector from a crashed truck in a junk yard which i then pulled 4 of the pins and wires out of to install into my trucks harness plug for the upfitter switch.
once i did that it was just a simple act of making a short extension wire from those 4 wires coming from the harness plug to go to the driver kick panel where im going to locate the relays for the devises i want to control.
you will see the harness plug and wires where i put them. and you will see the JST plug i used to connect the 4 wires to the extension wire to run to my relays. will also upload videos soon.
My warning lights come on when temp outside is in the 40’s and below. It says “ Low Brake Fluid, Stabilitrak Off, Traction Control Off” and this morning it also said low coolant. I live in south Florida so this happened last year when I went to Ohio in December, the truck had 12,000 miles on it. Got back to Florida and it happened one cold morning so I took it to dealership. They could not find anything wrong. Later with 38,000 miles the low coolant light came on. I took it to dealership again, they could not find anything. Now I am back in Ohio for Christmas and the lights started coming on again when I got into colder weather. They do go off at times while driving but come back on within 10 minutes if the temp outside is still below 40. It is very annoying as the warning bell starts going off and the lights flash. Any advice?
Hi everybody, does anyone have any suggestions why my 2011 GMC Sierra 1500 gives me the message "service stabilitrak and service traction control"? It only happens while the truck has been sitting under the sun and the outside temperature is hot. The message does not appear first thing in the morning when I use the truck to go to work and the outside temperature is not hot yet.
Greetings all. I sure would appreciate any members thoughts on my ABS Traction control nightmare that I'm having, I just can't seem to get ahead on this one. 2006 Avalanche 1500 4x4 LT, 108k.
Started out as an intermittent ABS and Traction Control lights activating with the "service stability" in the display. They would stay on for five minutes driving down the highway, then turn off for a half hour, then back on. All intermittently. Ran a scanner, no DTC's. I tried a different scanner but still, no DTC's. Cleaned up the grounds and Decided to replace the front hub assemblies with the sensors because they're almost the same price for just the sensors. Still getting the warning lights on. Replaced the rear sensors but it helped none. So, not much left so I replaced the ABS Module. Had the Dealer Reprogram and still... ABS and TC Lights are illuminating.
Could air in the brake lines cause this weird abs problem? Any help would be greatly appreciated.
I bought a Certified Pre-Owned 2010 Sierra SLE 5.3L (LC9) Vin code "3" about 3 years ago. It's stock besides a front leveling spacer on the strut, no aftermarket electrical.
The truck will intermittently go into limp mode with "Service Stabilitrak & Service Traction Control" displayed on the DIC (No SES Light).
Eventually when the CAN bus reboots the SES light illuminates. After clearing the codes it drives normal until it happens again.
I've had it happen on the freeway, in park, on normal surface roads, over bumps, doesn't seem to be a reason why or when it occurs other than outside temps.
The odd thing is it only acts up when its warmer than 60 Degrees outside, this winter she drove fine without a single hiccup. Which tells me it
might be an internal module failure...
However, I've had it happen in the same spot on the way to work several times.
When I pull the DTC's it's from modules that lost communication on the high speed CAN/LAN buss or modules requesting MIL because of no ability to communicate.
U0073 - Communication Bus A OFF
U0100 - Lost Comm with ECM
U0101 - Lost Comm with TCM
P0700 - TCM Request MIL
P069E - Fuel Pump Control Module Request MIL
U0140 - Lost Comm with BCM
U0121 - Lost Comm with EBCM
U0102 - Lost Comm with Transfer Case Cntrl Module
- I've replaced the battery (Optima Red Top), cleaned the terminals and cleaned Mega Fuse. Tested Alternator with a Midtronics GR8
- Cleaned the Grounds on the Front Engine Block, Fire Wall, Chassis under drivers door, front frame by radiator. (Hood to Firewall ground strap missing)
- Removed the UBEC fuse block and swapped relays, no corrosion, applied dielectric grease.
- Removed the TPA lock on the TCM/ Trans connector, checked for backed out terminals or ATF leaking. Found nothing abnormal.
- Checked the Harness from the TCM going up to the Engine Block, nothing abnormal.
- Checked EBCM connectors & harness, nothing abnormal
- Checked FPCM connectors & harness, nothing abnormal
- Replaced 120 Ohm Terminating Resistor (Twice)
- Checked ECM connectors & harness, nothing abnormal
- Checked BCM Connectors, nothing abnormal
- Checked harness on top of engine, nothing
- Using a DLC Break-out box, I have 60 ohms on PIN 14 (CAN High), but haven't been able to test when it acts up.
- I can talk to most modules with my scan tool when the CAN bus is online, if I plug it in just after the bus went down, I cant communicate and have to wait until the bus
reboots to clear the codes and get back on the road. I used to be able to clear the codes "on the fly" while driving but it seems like its taking the bus longer to reboot
as time goes on.
Just ordered new Positive and Negative battery cables, and the Hood ground (not sure why the hood needs a ground)
Could the VCIM module be bad?
The truck is pretty much babied since I've had it, I change the oil myself every 2-3k (fear of AFM issues).
Any help is much appreciated. I'm running out of ideas.
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