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I have been through the menu's 100 times. How do you get the exterior temperature on the instrument cluster?
It shows up fine on the Infotainment system however when using car play you cannot see external temp. Simply looking to have it displayed on the instrument cluster.
Seems like an easy feature to be missing and get added.
2004 SUBURBAN PARASITIC BATTERY DRAIN DRAW BCM? Have PICS & VIDEO OF PROBLEM... CANT FIGURE THIS ONE OUT!By W8MCC
2004 SUBURBAN Z71
I need some help.
My suburban sometimes goes dead. It will go dead every day for a week, and then not again for a month. Right now, its doing it again.
Replaced the battery (twice) on a new battery < 1 week old.
Had the alternator tested 3 times.
Replaced a questionable looking harness connection on the alternator with a soldered in connector properly heat shrunk.
Replaced the Instrument cluster about 6 months ago with a rebuild due to bad steppers. (not because of battery drain) but I mention it because its popped up before.
Performed numerous parasitic draw tests and found a possible issue:
Here's what I have found so far. My natural battery off state is 0.03A or 30mA. I have confirmed this with a matching truck I have where it has an off state draw of 22mA. They're within reason to each other so I consider that the normal state for my vehicle.
I have caught what I feel to be the issue twice, where I have a draw of 0.22A or 220mA almost a 1/4 amp and solid. It doesn't happen every time though. I only luckily found this twice while testing. The only way I can get the draw to disappear when it comes up by itself is to pull TBC BATT. And I only know its happening because I have a meter in line with the battery while testing.
I can simulate this same draw by doing the following:
1: Wait for the natural off state to settle in around 0.03A. This takes about a minute, first it starts off at 2.8A, then drops to 1.8, and so on as features are put to sleep after connecting the battery.
2: Pull the LBEC 1 Fuse. This makes the battery draw jump from the settled state of 30mA up to 190mA.
3: Reinsert LBEC 1 Fuse. This then jumps the battery draw all the way up to 220mA, which I consider to be the actual problem. The thing is it never drops back down. It just sits there indefinitely.
4: (to solve the issue) If I pull TBC BATT that instantly drops the draw back to the normal off state current, and when I reinsert TBC BATT the draw doesn't come back until I repeat the process above.
A: when this happens, pulling any fuses in the cabin fuse panel does not drop the current.
B: There is an audible click from a relay or something INSIDE the BCM under the dash. My other truck does this too, but I'm not sure what's on the aft side of that connection.
I checked out some of the free wiring diagrams at autozone. Unfortunately they're not organized too well and I'm getting lost with them, that and once the diagram enters the BCM I'm not sure whats going on with the circuits after that.
Anyone here have some insight to what to do? Like I said before, I have another identical truck (just not Z71) I can swap parts and pieces with to narrow it down. I will mention that on the other truck, if I do the steps above I get the same result BUT it eventually does settle down to 0.02A by itself where the Z71 does not. It just draws that 1/4 amp all day long (usually all night long).
Here's a video of my test:
Here are the two offending circuits in the underhood fuse panel:
By Brett Boyd
This past Friday morning went and started my truck to get warm came back about 5-10 minutes later with the truck off lights still on and it’s throwing engine reduced power and p0641 code. Truck won’t turn over at all. Any ideas or tips? Thank you in advance
By Mitch Wyndham
Hey everyone, couldn't find a thread for WTB/WTS but I am looking to replace my center console tray out of my 2011 Sierra All Terrain. It came with the brushed aluminum one that have the cover flaps thats open/close. Part #23164630. If anyone has one in good condition for sale let me know. Im based in Ontario but can send a shipping label and use paypal for payment. Attached a picture so theres no confusion! Thanks so much.
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