or a pressure loss is detected in the hydraulic brake system.
C1247 code
Thread Starter
Pro
Joined: Dec 2004
Posts: 670
Likes: 28
From: Mitchell SD
C1247 code
I installed a line lock on my '99 FRC and power bled the brakes, also I replaced the right hand CV shaft because the outer boot was leaking. Then I took the car for a drive and everything was working fine, the line lock worked good the brake pedal wasn't spongy. Then I was at a stop light on a hill and used the line lock to keep from rolling back and when I took off I started getting service traction control, service ABS and service active handling messages. When I check the codes the only current code I get is C1247 and when I try to clear it it pops right back up. I have trouble code listings printed off the net but they skip over C1247. Any ideas would be greatly appreciated. One other thing I should mention I have 18" tires all around and the rears are worn down a lot more than the fronts which from experience I know can confuse the active handling etc. but I can't even disengage the traction control with the warning messages lit up.
Former Vendor
Joined: May 2006
Posts: 718
Likes: 1
From: Riviera Beach FL
Code 1247 shows when the brake pressure differential switch is activated. Bleeding the brakes with the ignition switch on will cause it as well a a short in the wire. I believe it is one of the codes that require 50 ignition cycles to reset.
www.moroso.com
www.moroso.com
Thread Starter
Pro
Joined: Dec 2004
Posts: 670
Likes: 28
From: Mitchell SD
Code 1247 shows when the brake pressure differential switch is activated. Bleeding the brakes with the ignition switch on will cause it as well a a short in the wire. I believe it is one of the codes that require 50 ignition cycles to reset.
www.moroso.com
www.moroso.com
Thread Starter
Pro
Joined: Dec 2004
Posts: 670
Likes: 28
From: Mitchell SD
Here's an update; I bled the brakes again with the key off and the code was still there. the only way I can get it to go away is to unplug the center wire off the proportioning block. It didn't go away after 50 restarts but stayed as a current code. One thing is I've heard you have to hook up a tech. scanner to a C5 when bleeding the brakes can anyone verify this?
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Burning Brakes
Joined: Sep 2001
Posts: 893
Likes: 38
From: ATX
i've have this code intermittently. i also presently have the 'service active handling system' code set (1214, 1247, 1287). just cleaned the ground block but was a little low on brake fluid and it threw the 1247 code one ignition cycle after i took a hard corner and threw a 'low brake fluid' code. filled brake fluid (will flush this weekend), restarted the car, and it's gone. after reading this thread, i'll be sure to keep my keys off when i bleed my brakes. anyway, no solution, but fwiw, the code may not be reset, but it doesn't show up on the DIC's normal screen after one ignition cycle.
