Service traction control, reduced engine pwr
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
Well back to square one, same codes, stuck in limp mode. After driving it and it crappie out again batt is reading 12.5v
At a loss now, I'm goin to pull the battery and have it tested, for load and such, go from there.
At a loss now, I'm goin to pull the battery and have it tested, for load and such, go from there.
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
When you pulled over and checked the codes did you leave the engine running or shut it off when pulling the codes?? What were the actual codes stored after this drive??
Tire sizes should not be related to your symptoms as the rear tire overall diameter is about 1.2" larger than the front tire overall diameter.
Tire sizes should not be related to your symptoms as the rear tire overall diameter is about 1.2" larger than the front tire overall diameter.
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
Ok took battery down to parts house and ops ck good, full charge and passed load test fine. They used a hand held digital tester.
I'm going to check voltages at the TP sensor per service manual and see how that goes
Thanks guys
I'm going to check voltages at the TP sensor per service manual and see how that goes
Thanks guys
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
Man this is so confusing, I put the battery back in, fires up, revs like normal, was able to clear all codes, just have to hold the button down a few secs instead of just depressing and lettin loose...Doh LOL
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
Let it sit for a few mins, restarted and bam, pcs code p1120 and TCS c1278. Least I'm down to one code now.
While car is running I can reset the PCM code and the idle drops runs a bit rough, but will rev up fine. When I reset the TC code the TC light on dash goes out, but comes right back on and still will rev.
While car is running I can reset the PCM code and the idle drops runs a bit rough, but will rev up fine. When I reset the TC code the TC light on dash goes out, but comes right back on and still will rev.
Last edited by Cedarberry; Aug 3, 2015 at 01:26 PM.
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Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
I just did the ignition switch a few weeks ago as I was getting the security light and no start once in awhile, took care not to booger it up and break anything, may have not got um good enough?
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
So I'm sitting here in the car and starting and shut down, start again and before even turning the car over I get reduced engine pwr, it's not scrollin saying anything about traction control now.
Start the car and the TC message comes up also. So I'm starting to get POed at this point, take a break do lunch and I'll get back at it.
Start the car and the TC message comes up also. So I'm starting to get POed at this point, take a break do lunch and I'll get back at it.
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
Thank you 8Vette7 for hanging out here and helpin me out. Gonna get the car home and get after it there. Lunch didn't improve my mood, lol.
Does anyone know if the throttle body connector is the same for a C5 and C6. The C6 TB on my car has one connector, which I pulled the FRCs and looked to see if I could notice a splice area and didn't see anything.
If it's the same then I should be able to use the pin out from the C5 service manual, no?
Pullin grounds and cleaning um again at present
Thank you everyone for your input
Does anyone know if the throttle body connector is the same for a C5 and C6. The C6 TB on my car has one connector, which I pulled the FRCs and looked to see if I could notice a splice area and didn't see anything.
If it's the same then I should be able to use the pin out from the C5 service manual, no?
Pullin grounds and cleaning um again at present
Thank you everyone for your input
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
Yes, earlier I was having problems and couldn't reset anything, but found out that I needed to hold the button down a few secs. I can reset the PCM and TCS codes now.
Last edited by Cedarberry; Aug 3, 2015 at 07:51 PM.
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
Hwhile at the shop I pulled the battery again, checked cleaned the grounds at the battery, and on both sides of the frame in front.
The pulled all the connectors of in and around the battery area checking for corrosion and loose messed up contacts, all looked good.
Put the battery back in, fired up the car nd no DIC messages and no dash lights, cleared the history codes and drove home, half way home the security light came on, nothin else and ran fine,.
Before turning off the car I checked codes and had new current ones
TCS C1255. C1278. BCM B2721
So I'm gonna study up on the TPS and check the voltages there and see if I can find something wrong
Thanks again, you guys have been great
The pulled all the connectors of in and around the battery area checking for corrosion and loose messed up contacts, all looked good.
Put the battery back in, fired up the car nd no DIC messages and no dash lights, cleared the history codes and drove home, half way home the security light came on, nothin else and ran fine,.
Before turning off the car I checked codes and had new current ones
TCS C1255. C1278. BCM B2721
So I'm gonna study up on the TPS and check the voltages there and see if I can find something wrong
Thanks again, you guys have been great
Last edited by Cedarberry; Aug 3, 2015 at 06:00 PM.
Thread Starter
Drifting
Joined: Oct 2012
Posts: 1,585
Likes: 28
From: Cedaredge Colorado
Researched the C6 90mm TB upgrade to the C5, requires a adapter harness which from searching for pics, I do have on my car.
Now just need to find a pin out for it ......errr!!!
Now just need to find a pin out for it ......errr!!!