I have a 2000 coupe. I need the part number for the APP (Accelerator Pedal Position) sensor.

I have a C1276 code that is current and keeps coming back.

Thanks!

 

might want to check this out.

http://forums.corvetteforum.com/c5-t...-troubles.html

get a hold of Gene @ www.gmpartshouse.com ....He can get you the right part...

 

12565643 New, expect to pay over $200.00


I would suggest trouble shooting the problem first, instead of just replacing parts. There are times when a particular code does NOT tell you which part to replace, but only indicates a symptom and is a starting point.

Btw, that should be a P1276, not "C"

 

Thank you for trying to help - but you should check before you tell someone they are wrong . It is clearly a C1276 . I also have a P1689 that is also a Current code.

I had found a thread that talked about the pedal position sensor - but I am not sure.

 

You are not sure about what? What does the APP sensor have to do with a C1276 and P1689? (which are directly related..by the way). I thought you made a mistake as well, because a P1276 is for the APP.

DTC P1689 Traction Control Delivered Torque Output Circuit
DTC C1276 Delivered Torque Signal Circuit Malfunction

DTC P1276 Accelerator Pedal Position (APP) Sensor 1 Performance

 

OK that explains where I went wrong. The article I found about the APP talked about code 1276 but didn't have the C or P in front of it.

So Thanks. Now what do I need to do to fix this?

Do I understand correctly that one module is not putting out the correct signal and another module is complaining about it?

 

I suggest doing a search for those two codes.....and taking some of your own advice in the future........

Good luck

 

Sorry for the snotty comment - Thanks for saving me from buying a part I did not need!

 

Thank you for that.

Btw, I'm not saying that the APP is not bad, I'm just saying that without troubleshooting a particular problem, I have seen/read about/heard, numerous occasions where replacing a part that has it's "name" (so-to-speak) on the DTC number, often time fails to solve the problem. There are times when another component (even a connector or wiring) fails and affects yet another component that "reports" a problem. Maybe some water (from a backed up HVAC drain) has dripped on or into the APP and caused corrosion on it's connector or got into the sensor itself and it really IS the APP at "fault", but the cause was the water.
On a APP related matter I would be looking at ALL the other systems or components surrounding the APP and it's function, from the TAC (Throttle Actuator Controller) module to the PCM to the wiring or to the connectors. Maybe even the Throttle Body as well since that is at the end of the food-chain in that circuit. Even though the TAC module (which directly actuates the TB) is very reliable, it is located directly under the battery and if there has ever been an acid leak.....who knows? Maybe the wiring harness got damaged. If all else fails get some professional assistance.

 

I think the thread I read was related to the P1276 - So I think I was barking up the wrong tree.

I actually have a C1276 and P1689 and my active handling keeps going off.

It started with an every once in a while - now it is consistent.

Although my car is a daily driver - it is a garage queen . It stays garaged at home and at work.

I religiously check my A/C drains and I just put a brand new battery in 2 weeks ago. I have had optima batteries since I bought the car so there is no risk of battery acid on the PCM. I have eyeballed all my grounds (although that is probably not a good indicator) and don't see any evidence of rust.

Any ideas? I have searched the forum but can't find anything definitive that leads me to a repair.

 

Oh, OK. I'm still stuck on the APP thing.

Based on just a snap hunch (without dragging out a shop manual), one of the areas I would consider is a wheel speed sensor, or more accurately, the wiring harness/connector(s) involved.
Bill Curlee has posted up some good stuff on this and had some luck troubleshooting some faulty connections due to the connector pins on the intermediate wiring harness that connects directly to the wheel speed sensor, and creating a bad/intermittent connection. The reason I mention it is because the Traction Control gets some of it's input from the wheel speed sensors located inside the hub bearings. There are other things of course, but often the little things get overlooked. Might try a search on Traction Control relates issues.

 

Thanks for the referral. I would certainly be happy to help you out.

 

I know I asked the question 6 months ago - It took me this long to get time to look at it.

The problem was service traction control/service active handling messages at random time intervals. Anywhere from 5 to 20 minutes into a trip. Based on input from awesome forum members........

I started by looking at the ECM - removed the large connectors, used compressed air to clear the area and put them back, Problem was still there.

I exposed the EBTCM and noticed that the Bail used to remove/insert the connector was half cocked. I removed the connector , cleared the area with compressed air and reconnected everything. Problem solved.

I am kicking myself in the *** for not checking on it sooner. Based on everything I had read - I thought I was in for a big job.

Thanks everyone.