C1225H wheel sensor code remedy.
Thread Starter
Racer
Joined: Jan 2013
Posts: 415
Likes: 19
From: Mobile Alabama
C1225H wheel sensor code remedy.
Pulled codes after getting AH/TCS service message. Got C1225H and I see where that is the wheel speed variation sensor. Going to check the plug for proper connection or corrosion. I see where another member posted using WD40 to clean out the plug, is that the recommended cleaner or would it be better to use something like Loctite nonflammable electrical contact cleaner.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
I just saw a post this morning on this exact same issue. The guy was really good at diagnostics and ruled out everything but the EBCM using the FSM diagnostics. He replaced the EBCM and had the same issue.
He then replaced the hub (with sensor) when the replacement EBCM gave him the same code. That fixed the issue and he then put back in the original EBCM and verified the code was gone there too.
Just info for thought. I assume it had to be an "at speed" issue that could not be seen otherwise.
He then replaced the hub (with sensor) when the replacement EBCM gave him the same code. That fixed the issue and he then put back in the original EBCM and verified the code was gone there too.
Just info for thought. I assume it had to be an "at speed" issue that could not be seen otherwise.
Thread Starter
Racer
Joined: Jan 2013
Posts: 415
Likes: 19
From: Mobile Alabama
I just saw a post this morning on this exact same issue. The guy was really good at diagnostics and ruled out everything but the EBCM using the FSM diagnostics. He replaced the EBCM and had the same issue.
He then replaced the hub (with sensor) when the replacement EBCM gave him the same code. That fixed the issue and he then put back in the original EBCM and verified the code was gone there too.
Just info for thought. I assume it had to be an "at speed" issue that could not be seen otherwise.
He then replaced the hub (with sensor) when the replacement EBCM gave him the same code. That fixed the issue and he then put back in the original EBCM and verified the code was gone there too.
Just info for thought. I assume it had to be an "at speed" issue that could not be seen otherwise.
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Use an appropriate electrical contact cleaner and see if that helps.
