Dtc c0899, c0900, c0161 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Boog** · 02-02-2016, 08:49 PM

2009 Yukon 4wd.
It began with the cruise not setting every time. I replaced the brake light switch and it worked fine for a few weeks. Now it gives the messages, stabilitrac and traction control issues.
These first two codes are for low voltage and high voltage at some device. The third one is for ABS/TCS circuit fault.
Is this where I give up and take it to a dealer to solve?

Tynee · 02-10-2016, 04:37 PM

Boog, any resolution? Everything I've seen indicates that the brake light switch is the magic bullet cure-all on these trucks. Any chance you got a bad replacement switch?

**Boog** · 02-10-2016, 06:02 PM

Before these codes showed up I had replaced the brake switch with a BWD one because the cruise started working only intermittently. It was more expensive than the AC but i thought it might be better so i went with it. Apparently it was faulty or it became so after a couple weeks.
The first two codes are old ones and once cleared have not returned. The 161 code is for the Abs/Tsc circuit fault giving "service traction control and stabilitrac "messages. Cleared the codes and installed an AC brake switch. So far so good.
Even new parts can be bad.

02-02-2016, 08:49 PM	#1
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,453	Dtc c0899, c0900, c0161 2009 Yukon 4wd. It began with the cruise not setting every time. I replaced the brake light switch and it worked fine for a few weeks. Now it gives the messages, stabilitrac and traction control issues. These first two codes are for low voltage and high voltage at some device. The third one is for ABS/TCS circuit fault. Is this where I give up and take it to a dealer to solve? __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

02-10-2016, 04:37 PM	#2
Tynee I miss this truck. Join Date: Dec 2001 Location: Lexington, KY U.S.A. Posts: 2,863	Re: Dtc c0899, c0900, c0161 Boog, any resolution? Everything I've seen indicates that the brake light switch is the magic bullet cure-all on these trucks. Any chance you got a bad replacement switch? __________________ '07 GMC Acadia SLT. Sweet ride. '08 Crew Cab Z-71 short bed. Really like this truck A LOT.

02-10-2016, 06:02 PM	#3
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,453	Re: Dtc c0899, c0900, c0161 Before these codes showed up I had replaced the brake switch with a BWD one because the cruise started working only intermittently. It was more expensive than the AC but i thought it might be better so i went with it. Apparently it was faulty or it became so after a couple weeks. The first two codes are old ones and once cleared have not returned. The 161 code is for the Abs/Tsc circuit fault giving "service traction control and stabilitrac "messages. Cleared the codes and installed an AC brake switch. So far so good. Even new parts can be bad. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross



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