ABS Code C1226 Again on 2000 C5!
Thread Starter
Racer
Joined: Jun 2004
Posts: 272
Likes: 0
From: Reinholds PA
ABS Code C1226 Again on 2000 C5!
This code is: excessive wheel speed variation. It usually comes on about 1 mile from my house on dry roads, when driving straight at 35-40mph. DIC says serice ABS, traction control, and active handling.
This is what I've done: replaced both front wheel bearings, replaced Optima battery w/ new Optima battery and cable nuts(area under battery is a-OK,) cleaned all grounds in engine compartment, including ABS ground wire, replaced the pig-tails between bearing and wiring harness, tap w/wooden mallet, on side of ABS EBCM.
Had a dealership confirm code as RF sensor.
Had Phoenix, last Wednesday, by-pass existing harness and wire-in a new section between front ABS and ECBM.
Drove for about 40 miles and still got code. Next step is to replace EBCM. Am I barking up the wrong tree? Anybody have any other suggestions?
Maybe I am going to replace the ground wire from the ABS unit.
This is what I've done: replaced both front wheel bearings, replaced Optima battery w/ new Optima battery and cable nuts(area under battery is a-OK,) cleaned all grounds in engine compartment, including ABS ground wire, replaced the pig-tails between bearing and wiring harness, tap w/wooden mallet, on side of ABS EBCM.
Had a dealership confirm code as RF sensor.
Had Phoenix, last Wednesday, by-pass existing harness and wire-in a new section between front ABS and ECBM.
Drove for about 40 miles and still got code. Next step is to replace EBCM. Am I barking up the wrong tree? Anybody have any other suggestions?
Maybe I am going to replace the ground wire from the ABS unit.
Racer
Joined: Aug 2005
Posts: 388
Likes: 6
This code is: excessive wheel speed variation. It usually comes on about 1 mile from my house on dry roads, when driving straight at 35-40mph. DIC says serice ABS, traction control, and active handling.
This is what I've done: replaced both front wheel bearings, replaced Optima battery w/ new Optima battery and cable nuts(area under battery is a-OK,) cleaned all grounds in engine compartment, including ABS ground wire, replaced the pig-tails between bearing and wiring harness, tap w/wooden mallet, on side of ABS EBCM.
Had a dealership confirm code as RF sensor.
Had Phoenix, last Wednesday, by-pass existing harness and wire-in a new section between front ABS and ECBM.
Drove for about 40 miles and still got code. Next step is to replace EBCM. Am I barking up the wrong tree? Anybody have any other suggestions?
Maybe I am going to replace the ground wire from the ABS unit.
This is what I've done: replaced both front wheel bearings, replaced Optima battery w/ new Optima battery and cable nuts(area under battery is a-OK,) cleaned all grounds in engine compartment, including ABS ground wire, replaced the pig-tails between bearing and wiring harness, tap w/wooden mallet, on side of ABS EBCM.
Had a dealership confirm code as RF sensor.
Had Phoenix, last Wednesday, by-pass existing harness and wire-in a new section between front ABS and ECBM.
Drove for about 40 miles and still got code. Next step is to replace EBCM. Am I barking up the wrong tree? Anybody have any other suggestions?
Maybe I am going to replace the ground wire from the ABS unit.
Advanced
Joined: Sep 2004
Posts: 58
Likes: 0
From: Dayton Ohio
1225/1226
I'm having the same problem, and I do have steel briaded lines. (just installed a week ago) did not have this issue before the braided lines, is there some reason to think thats related ?, or was that supposed to help ?
Le Mans Master
Joined: Feb 2006
Posts: 5,267
Likes: 40
From: Phoenix AZ
Do a search on steel braided lines and static. Try running a temp ground wire to the caliper and see what happens.
