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I have a 1999 C5 Corvette. For the past 6 years the steering in my car has been wonky. It began around 2018, so I took it to a local garage and was told it was from worn away bar end links and shocks. Replaced them, no change. New tire. Multiple alignments. Changed upper and lower control arm in the front. Changed all ball joints. Changed shocks again (Bilsteins).because Chevy dealer said my local garage put oil shocks in. Dealer then said it's probably the rack & pinion. Nothing worked. Long story shortened - a friend suggested that I check my yaw sensor. It is not on the cradle where it should be. I looked all over under the dashboard without removing it completely. There's no sign of it. Now I'm thinking that if I can find the wiring harness that I can trace it and eventually put it back where it should be. There are no wiring harnesses that are not attached to something. Does anyone know where the wiring harness to the yaw sensor comes in? I don't believe it's under my dash. Please help.
I have a 1999 C5 Corvette. For the past 6 years the steering in my car has been wonky. It began around 2018, so I took it to a local garage and was told it was from worn away bar end links and shocks. Replaced them, no change. New tire. Multiple alignments. Changed upper and lower control arm in the front. Changed all ball joints. Changed shocks again (Bilsteins).because Chevy dealer said my local garage put oil shocks in. Dealer then said it's probably the rack & pinion. Nothing worked. Long story shortened - a friend suggested that I check my yaw sensor. It is not on the cradle where it should be. I looked all over under the dashboard without removing it completely. There's no sign of it. Now I'm thinking that if I can find the wiring harness that I can trace it and eventually put it back where it should be. There are no wiring harnesses that are not attached to something. Does anyone know where the wiring harness to the yaw sensor comes in? I don't believe it's under my dash. Please help.
...and you are certain you have an RPO JL4 in your glove box....indicating you have active handling?
I bought the car in 2009 and am uncertain as to what it came with. Not all codes in the glovebox are legible. (See photo below). I can read a JL9. According to two different Chevy dealers that have run the last 8 of my VIN my car is supposed to have a yaw sensor.
I bought the car in 2009 and am uncertain as to what it came with. Not all codes in the glovebox are legible. (See photo below). I can read a JL9. According to two different Chevy dealers that have run the last 8 of my VIN my car is supposed to have a yaw sensor.
If that is your original glove box door......, you do not have AH. If you had the JL4 option, it would listed right before JL9 .
If you had a yaw rate sensor, there would be a dark blue wire in position 21 of the EBTCM as well
If that is your original glove box door......, you do not have AH. If you had the JL4 option, it would listed right before JL9 .
If you had a yaw rate sensor, there would be a dark blue wire in position 21 of the EBTCM as well
From my 1999 below:
I drove the car last night and on some roads the steering is wonky. I pulled the codes off the DIC. I have a C1255 code which according to my sheet relates to an internal malfunction of the EBTCM. Could this be causing my steering issues? If so, how do I fix it?
I drove the car last night and on some roads the steering is wonky. I pulled the codes off the DIC. I have a C1255 code which according to my sheet relates to an internal malfunction of the EBTCM. Could this be causing my steering issues? If so, how do I fix it?
Unfortunately, the C1255 is a kiss of death for the EBTCM. I do not see how that would influence your steering.
You have never speciifically stated exactly what your steering issue is.
Unfortunately, the C1255 is a kiss of death for the EBTCM. I do not see how that would influence your steering.
You have never speciifically stated exactly what your steering issue is.
My car is pulling both left and right (tramlining). It seems more dangerous on city streets at times than on highways. I have pretty much changed out the entire front end because of the local dealership.
Tramlining can be very evident in some cars and some conditions. I have a stock Z06 with the F1 Supercar Goodyears which are about 5 years old. My car has no faults or codes and will tramline heavily if the right road conditions are present. On a great road no tramlining.
Another thing that can be a cause is wheel offset different than stock. It affects suspension and steering response in ways other than the suspension was designed. The tread and design of the tire are also a large factor in how the car responds to the road surface.
Economy and comfort cars are less susceptible to tramlining and performance cars and tires are more susceptible.
What tires are you running and do you have aftermarket wheels or spacers on your car?
My car is pulling both left and right (tramlining). It seems more dangerous on city streets at times than on highways. I have pretty much changed out the entire front end because of the local dealership.
So have them make it right. Sounds like the dealership is just throwing parts at it without a diagnosis at your expense.
Check the couplings for the steering column. There are 2 in the engine compartment, One at the steering rack and the other just under the brake booster. This is the 2 ends of what is called the intermediate shaft. It does have a U joint on it that can cause issues.
Also check the joint at the top of the steering column. This is where the tilt mechanism is located. This can also fail. To check this one have the intermediate shaft held tightly and turn the steering wheel if the wheel moves either left or right without a corresponding movement of the intermediate shaft the joint is loose in the column.
From your description I would concentrate on the intermediate shaft.
Now if the steering rack has ever been loosened the bolts may not be tight enough or bushings for it are worn this can also cause your issue.
Frustrated from steering issues
