Bill Curlee, Electrical Guys, Please Step Inside......
Thread Starter
Racer
Joined: Jun 2005
Posts: 466
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From: Va. Beach VA
Bill Curlee, Electrical Guys, Please Step Inside......
I'm getting DTC C1226 - RF excessive wheel speed variation - when the car exceeds 80 mph. Also noticed during new pad/rotor break-in, under hard braking the right front locks up. Wheel speed sensor/hub/bearing ***'y?
TIA,
Keith
TIA,
Keith
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
Your code indicates the following.
EBCM detects a rapid variation in the wheel speed. (i.e. more than 10mph in .01 seconds).
Could be faulty wheel sensor or electrical noise. One of you stated that you have stainless steel lines. Try moving wheel sensor wires away from brake lines
EBCM detects a rapid variation in the wheel speed. (i.e. more than 10mph in .01 seconds).
Could be faulty wheel sensor or electrical noise. One of you stated that you have stainless steel lines. Try moving wheel sensor wires away from brake lines
Originally Posted by kdub1
I'm getting DTC C1226 - RF excessive wheel speed variation - when the car exceeds 80 mph. Also noticed during new pad/rotor break-in, under hard braking the right front locks up. Wheel speed sensor/hub/bearing ***'y?
TIA,
Keith
TIA,
Keith
Le Mans Master
Joined: Sep 2003
Posts: 6,276
Likes: 227
From: Farmington CT
Cruise-In VII Veteran
i'd start w/ the speed sensor harness(about 2 ft long, connects the speed sensor/hub to the harness on the xmember), swap L to R
still have the 1226? then i'd swap the hubs(about an hour) to see if the code follows
this way you narrow it down to the harness or speed sensor/wheel bearing/hub(all the same, diff names) and use the bcm to troubleshot the broken component for you
there is a spin ck on the wheel bearings, i don't have the desired results, ck the shop manual
also reseat the ebcm plug
still have the 1226? then i'd swap the hubs(about an hour) to see if the code follows
this way you narrow it down to the harness or speed sensor/wheel bearing/hub(all the same, diff names) and use the bcm to troubleshot the broken component for you
there is a spin ck on the wheel bearings, i don't have the desired results, ck the shop manual
also reseat the ebcm plug
Race Director
Joined: Oct 1999
Posts: 17,710
Likes: 1,219
From: Phila PA, Bonita Springs FL
Originally Posted by Today's problem is..
same problem here, mine started after putting on my new tires/brakes/steel braided brake lines.Did it start immediately?
I have the 1225 code (left side), but have SS line for about 8 months now.. Happens after going over small bumps..
I am going to get the sensor harness plugs changed, drive it, & if it still pops, then the hub..
Race Director
Joined: Oct 1999
Posts: 17,710
Likes: 1,219
From: Phila PA, Bonita Springs FL
4/21/06.. driving to the track, the 1225 popped AGAIN, 3 weeks AFTER hub & harness replacements!
Now what? Ground the SS brake line? HELP/ADVICE?
Anyone STILL getting 1225 AFTER hub/harness replacement?
Now what? Ground the SS brake line? HELP/ADVICE?
Anyone STILL getting 1225 AFTER hub/harness replacement?
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From: Oswego NY
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I have been having the same issues...1225 and 1226. Yesterday i spliced in 2 new female connectors to the harness and replaced the extension harness on both sides. Wouldn't you know it, the problem went away. Bill C. was right, it's the female connectors