Abnmarine

Finally put a few hundred miles on the car since buying it. It runs good but I have a list of issues to correct.

I knew something was up with what I belived to be the yaw rate sensor needing replaced and the wheels not having TPS installed. The traction light has been on so today I pulled the codes:

Codes
• C1277 Requested Torque Signal CKT Malfunction
• C1286 Steering Sensor Bias Malfunction
• C1287 Steering Sensor Rate Malfunction

My tires are 235/35/18 front and 275/30/19 rear. Would they cause these codes?

C1288 Didn't locate this one

• B0432 Rear Defogger Relay Circuit
• U1040 Loss of Communications with TCS

These are fron not having TPS sensors
• C2100 Left Front TPM Sensor Malfunction
• C2105 Right Front TPM Sensor Malfunction
• C2110 Right Rear TPM Sensor Malfunction
• C2115 Left Rear TPM Sensor Malfunction
• U1000 Loss of Communication Undetermined
• U1064 Loss of Communication with BCM

I also need to fix the headlights. Previous owner installed Xenon HIDs. The only want to have them go down in to turn the brights on, then off. Each time I start the car, they open a inch each time. I can turn on and off and they will stay closed.

When turning the lights off, I have a gear grinding. I read here that they strip easily and a vendor offers brass gears. Sound like the correct fix?

I have to remove the windshield cowl to find the washer lines. They aren't connected and must of fallen below the cowl when PO installed a carbon fiber cowl.

These are the issues I've noticed. Any suggestions for a fix are appreciated. Otherwise the car is solid.

jcgunn

C1288 is the SPS (steering position sensor). More than likely this is causing the yaw codes to trip. I replaced my SPS last year at about 80K and it fixed a lot of related codes.

Abnmarine

I'm assuming the steering wheel needs to be removed. How long did the swap take? I'm removing the dash next month to install a HUD anyways so I will do it then. Any write ups on this?

Would that also throw the service traction control warning?

kp1

Steering column needs to come out.

Yes it will trip active handling.

Vetteman Jack

Good luck getting all the problems ironed out.

mathia

Here are instructions on how to replace the steering position sensor:
http://forums.corvetteforum.com/c5-t...on-sensor.html

Lots of members have added tips and tricks since I posted how I did it, so read through beyond my original posts. If you have a telescoping column (which I do not) it's supposed to be a lot harder as that column is larger and more difficult to get out. Otherwise, it's fairly straight forward.

Abnmarine

I found that thread yesterday and it's full of great information. I don't have the telescoping column so it shouldn't be too bad. I'm gonna knock this out when I install my HUD next month.

Appreciate the link.

Abnmarine

Today I did se additional trouble shooting. While parked and also driving, I cleared the TCM codes. The TCS light stayed off until I turned the steering wheel. Same results parked or moving. I feel confident that the SPS needs to be replaced.