TCS C1241 Gremlin
Thread Starter
Heel & Toe
Joined: Apr 2013
Posts: 19
Likes: 0
From: VA
TCS C1241 Gremlin
I have code C1241 H C in my 2003 Z06.
My steering rack was leaking and replaced last month, I hoped this would fix the problem but sadly the stiffness in the new rack just makes turning at low speeds even MORE difficult.
I have checked the wiring between the EBCM and the rack, there are no shorts to ground or power, the continuity through the harness is good. The resistance at the rack is 2.0 ohms. The resistance at the EBCM is infinite. But! There is NO current at the connector with the engine running. This leads me to believe that the EBCM is at fault.
However... when I took it to Zip Corvette and they hooked up their Tech tool my steering wheel position sensor showed 0 at all times in all positions. This makes me think that something *else* may be going on here.
I don't want to set to work on the EBCM if it is not the issue.
I have no other trouble codes and everything else seems to be working properly.
Any help, suggestions or insight would be greatly appreciated.
My steering rack was leaking and replaced last month, I hoped this would fix the problem but sadly the stiffness in the new rack just makes turning at low speeds even MORE difficult.
I have checked the wiring between the EBCM and the rack, there are no shorts to ground or power, the continuity through the harness is good. The resistance at the rack is 2.0 ohms. The resistance at the EBCM is infinite. But! There is NO current at the connector with the engine running. This leads me to believe that the EBCM is at fault.
However... when I took it to Zip Corvette and they hooked up their Tech tool my steering wheel position sensor showed 0 at all times in all positions. This makes me think that something *else* may be going on here.
I don't want to set to work on the EBCM if it is not the issue.
I have no other trouble codes and everything else seems to be working properly.
Any help, suggestions or insight would be greatly appreciated.
Last edited by catfishbear; Jul 18, 2015 at 10:29 AM.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Not at home with my FSM. Here are 2 links to look at. Sure does not seem like the SWPS would throw that code.
https://www.corvetteforum.com/forums...cuit-help.html
https://www.corvetteforum.com/forums...ode-c1241.html
https://www.corvetteforum.com/forums...cuit-help.html
https://www.corvetteforum.com/forums...ode-c1241.html
Thread Starter
Heel & Toe
Joined: Apr 2013
Posts: 19
Likes: 0
From: VA
Not at home with my FSM. Here are 2 links to look at. Sure does not seem like the SWPS would throw that code.
https://www.corvetteforum.com/forums...cuit-help.html
https://www.corvetteforum.com/forums...ode-c1241.html
https://www.corvetteforum.com/forums...cuit-help.html
https://www.corvetteforum.com/forums...ode-c1241.html
It seemed from my reading that whichever system is at fault there should be some other error codes as well.
It is my understanding that the lone C1241 strongly points to a simple wiring issue, which apparently does not exist.
Puzzled!
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
I looked at the FSM. This is the only code in the Variable Steering section.
Have you checked to make sure the sensor is not shorted to the housing? I know the coil resistance is correct from your measurement.
I have attached the 2003 info for you. It says at low speed the current is a negative 2 amps so not sure how you measured current.
Was this code there before you changed the rack?
Here is the info:
https://www.dropbox.com/sh/6yikijl1w...2LlgjOcRa?dl=0
Let me know if you can think of anything else I can do.
Mr. Sam
Have you checked to make sure the sensor is not shorted to the housing? I know the coil resistance is correct from your measurement.
I have attached the 2003 info for you. It says at low speed the current is a negative 2 amps so not sure how you measured current.
Was this code there before you changed the rack?
Here is the info:
https://www.dropbox.com/sh/6yikijl1w...2LlgjOcRa?dl=0
Let me know if you can think of anything else I can do.
Mr. Sam
Thread Starter
Heel & Toe
Joined: Apr 2013
Posts: 19
Likes: 0
From: VA
I was using a digital multimeter to check for current, which I think should have shown a negative result of some sort but it showed nothing.
I've managed to find a supplier for a new EBCM that will let me return if not needed, and as the SWPS feeds into the EBCM as well I think it is probably worth the time and effort to see if it is the culprit.
Thank you for all the info. I think maybe it's time I should invest in a FSM too.
I've managed to find a supplier for a new EBCM that will let me return if not needed, and as the SWPS feeds into the EBCM as well I think it is probably worth the time and effort to see if it is the culprit.
Thank you for all the info. I think maybe it's time I should invest in a FSM too.
