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Magna Steer 1241

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Old Jun 26, 2009 | 02:48 PM
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Default Magna Steer 1241

Anyone have to replace the EBCM due to magna steer malfunction code 1241? The reason I ask is because my mechanic checked all electric connections and everything is within specs. He says its the EBCM. I talked to the guy at ABSFIXER.com and a GM mechanic and they both say its very rare that the EBCM would cause this code. I've done a search and read Bill Dearborn's post about this, which was very helpful. Just want to confirm the EBCM is the culprit before I spend the money on one.
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Old Jun 26, 2009 | 03:04 PM
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Originally Posted by gman31
Anyone have to replace the EBCM due to magna steer malfunction code 1241? The reason I ask is because my mechanic checked all electric connections and everything is within specs. He says its the EBCM. I talked to the guy at ABSFIXER.com and a GM mechanic and they both say its very rare that the EBCM would cause this code. I've done a search and read Bill Dearborn's post about this, which was very helpful. Just want to confirm the EBCM is the culprit before I spend the money on one.
I guess it depends on how much faith you have in your mechanic. If you are positive that he has checked everything that the service manual suggests, and has isolated the problem to the EBCM, then proceed accordingly.
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Old Jun 26, 2009 | 03:20 PM
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Here is the crux of the matter. Does your mechanic have a Tech II or equivalent scan tool that can monitor the VES circuits? That is the very first step in the diagnostic procedure for this fault. If the currents are in spec. then the procedure tells him to go find a problem in the wiring and bypasses the rest of the procedure. If the VES currents are not in spec then the rest of the procedure (which also includes checking wiring) might lead you to an EBCM replacement. However, there are a lot of things to check before you get that far.

The reason I ask about the scanner is most non GM dealer shops do not have those kinds of tools due to the expense. They have tools that help them find powertrain problems since those tools are common across multiple manufacturers.

One other thing. Is this the only code or are there EBCM codes as well?

Bill
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Old Jun 26, 2009 | 06:15 PM
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Originally Posted by Bill Dearborn
Here is the crux of the matter. Does your mechanic have a Tech II or equivalent scan tool that can monitor the VES circuits? That is the very first step in the diagnostic procedure for this fault. If the currents are in spec. then the procedure tells him to go find a problem in the wiring and bypasses the rest of the procedure. If the VES currents are not in spec then the rest of the procedure (which also includes checking wiring) might lead you to an EBCM replacement. However, there are a lot of things to check before you get that far.

The reason I ask about the scanner is most non GM dealer shops do not have those kinds of tools due to the expense. They have tools that help them find powertrain problems since those tools are common across multiple manufacturers.

One other thing. Is this the only code or are there EBCM codes as well?

Bill
Bill, thanks for replying. He said he checked the ohms on the 2 wires coming from the VES, the wires on the EBCM and the grounds, and all were in spec. I showed him your previous posts on this issue and gave him the schematics.

This is the only code its throwing.

My mechanic used to be a GM mechanic and is somewhat familiar with the system. I guess I'm just looking for a second opinion before spending the money on a new EBCM.
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Old Jul 7, 2009 | 07:05 PM
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Got the magna steer back. It was the EBCM. Bought a refurbished one from ABSFIXER.
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