Trac and ABS code pulled
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Joined: Aug 2007
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From: Oxnard Ca
Trac and ABS code pulled
I have code C1225 in the system. The service manual is kinda vague on this code stating possible ohm variance. It will only set when the car hits 95mph. It clears when I cycle the key. I was thinking possible dirty sensor? I am going to throw it on a rack and check all wires and clean sensors but is there anything else I should be looking at? I am not sure what to look at since it is so specific when it comes on.
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From: Charlotte, NC (formerly Endicott, NY)
From the 04 Service Manual:
C1225 through C1228
A possible cause of this DTC is electrical noise on the wheel speed sensor harness wiring. Electrical noise could result from the wheel speed sensor wires being routed to close to high energy ignition system components, such as spark plug wires.
Loose or corroded connections could cause the circuits to be more sensitive to electrical interference. Check the EBCM connector and the EBCM ground points. You should also check to see if the wiring harness has gotten close to the spark plug wires. You should also check the wires to make sure they are not creating excessive electrical noise. Higher speeds can generate higher frequency interference from the spark plugs so the spark plug wires them selves could be the problem. If the wheel speed sensors are creating a signal that is too low in voltage the circuits could be sensitive to spark noise also.
Bill
C1225 through C1228
A possible cause of this DTC is electrical noise on the wheel speed sensor harness wiring. Electrical noise could result from the wheel speed sensor wires being routed to close to high energy ignition system components, such as spark plug wires.
Loose or corroded connections could cause the circuits to be more sensitive to electrical interference. Check the EBCM connector and the EBCM ground points. You should also check to see if the wiring harness has gotten close to the spark plug wires. You should also check the wires to make sure they are not creating excessive electrical noise. Higher speeds can generate higher frequency interference from the spark plugs so the spark plug wires them selves could be the problem. If the wheel speed sensors are creating a signal that is too low in voltage the circuits could be sensitive to spark noise also.
Bill
Last edited by Bill Dearborn; Nov 20, 2007 at 12:14 AM.
