mo-shy

I got this code yesterday
can any one help me pls.

HPS MASTER TECH

need code # to help. P????

mo-shy

i got this message on my Dic "Reduced Engine Power Then Service Traction Control"

427CPE

I had this happen once in "Abuse Mode" where I tapped the limiter on a really bad shift a few times. Its been a while, but believe I used my EFI Live software to clear the codes. There are parameters you can edit to prevent this from happening. Not sure about C6 though.

mo-shy

i went to the dealer he found this codes:

p2135
p1153
p1133


and he told me the problem come from this code p2135 !! but i dont think that cause this code come from throttle body !!
what is the connection between Traction system and throttle body!
any one have this before??

427CPE

a lot of codes cause you to end up in powertrain reduction mode.
I suspect your TP sensor is not up to par. other codes indicate insufficient bank switching. I would reset the codes then wait for them to happen again. If so, you may need to replace the faulty parts. I would suggest you buy EFI LIVE V2 to work w/your processor. You can tune, datalog, and do lots of diagnostics.

mecanico1950

#PIP3089B: SES Light And Reduced Engine Power DTC P0120 P0220 P1516 P2135 - keywords accelerator actuator APP blade body connector connection DTC L33 L59 LH6 LR4 LM7 LS1 LS2 LQ4 LQ9 module position reduce sensor - (Oct 31, 2006)


Subject: SES Light and Reduced Engine Power DTC P0120 P0220 P1516 P2135


Models: 2004-2006 Buick Rainer

2005-2006 Cadillac CTS-V

2003-2006 Cadillac Escalade

2003-2006 Chevrolet Avalanche, Corvette, Express, Monte Carlo, Silverado, SSR, Suburban, Tahoe, Trailblazer

2003-2006 GMC Envoy, Savana, Sierra, Yukon

2003-2006 Hummer H2

2005-2006 Pontiac GTO

Equipped with a 4.8 5.3 6.0 or 7.0 V-8 Engine




--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
A vehicle may be brought into the dealer for a reduced power message, and DTCs P0120, P0220, P1516, P2101, or P2135.

The Throttle Actuator Control (TAC) / throttle body type trouble codes, may be caused by a loose wiring crimp at the throttle body connector, or a broken throttle body circuit.

Recommendation/Instructions:
Complete the current SI diagnostics for any symptoms or trouble codes found. If a intermittent T/P or TAC module type code is occurring complete the inspections below.

Inspect all related throttle body terminals for a loose wiring crimp. The loose crimp may be difficult to find, and the poor connection will be between the terminal and the copper strands of the wire. Wiggle test the individual throttle body circuits to see if the concern can be duplicated.
Inspect the related circuits for broken wires inside the insulation. The outer wire insulation may look fine, but the internal copper strands may be partially broken. Breaks in the wires usually occur within 1 to 4 inches of the throttle body connector. Wiggle testing may also induce a trouble code to set.
On C/K trucks complete SI procedures for voltage drop on grounds G103 and G104. Grounds G103 or G104 may be loose or corroded.
If a terminal crimp or a broken wire has been found, repair or replace only the circuits involved. There is a throttle body pigtail connector available through GMSPO, but installing this pigtail connector may cause other intermittent TAC module/TP codes at a later date. If this pigtail must be used, please follow the SI procedures for Splicing Copper Wire Using Splice Sleeves. (the proper Kent-Moore crimping tool must be used for this repair)

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved
hope this helps you.

mo-shy

Thanks alot.
i wait my dealer finish his jop and see!

Joe Lynch

I know this is not likely on your car, but if you have a frayed fan belt, the threads will hit the wiring at the throttle position sensor while the engine is running and can cut them, resulting in this code. Check your fan belt and check the wiring at the throttle body position sensor right above the fan belt for damage.



I had to repair a driving instructor's C5 at a track day when this happened to him. Can happen on a C6 as well.

Hope you find it.

Joe

boattrash9

Hey I had this problem one evening...I had drove the car for about 15 mins and made it to the store...Well after getting back in the car boom!!! Service traction reduced power...The car would not even barely move!!! Well to my amazement I looked at the gas guage and realized that I had more gas then it was showing.

I took it over to the pump and filled it up and the problem went away!! I know it sounds crazy but this is the GODs honest truth...It made me believe that maybe there was a sensor that is going out in my fuel tank... I hope it is this easy for you.

mo-shy

Thanks that great info.

mo-shy

I think my case is different
i just wait my dealer finish his jop then see if he was true when he said the problem come from this code(p2135).
p.s i went to the dealer since week and my car still there

AORoads

here's hoping it's all easy and good stuff that the dealer takes care of. or you might have to go see this fellow's technician in Lynchburg (http://forums.corvetteforum.com/show....php?t=2057251)

let's hope not; that's a big trip for a car that's running in reduced power mode.

boattrash9

Well never the less I would give it a shot.....How would you like to throw 20 dollars in there and be about your business??? Worse case secenario siphon it out after words... Good luck bud

MSC6

I just had this problem and was back 2 times to the dealer. The first time it went out on it's own but stored the code. Dealer just reset it and "checked all the sensors". The second time the code it threw was for the throttle position sensor. I limped to the dealer with no power. The tech told me they would need the car for days to get one in. I advised him that it usually happens after I wash the car and he said just coincidence. Well it wasn't !

Just before I left he checked for service bulletins and IMAGINE THAT he found one pertaining to the problem. The connector to the left of the battery (not for the battery) but for the sensor was getting wet. He blew it out, sprayed it with silicone grease and repositioned it because the way it was sitting it collected water like a cup. No problems since. Have them look into this option it might help. I'm at work so I don't have the TSB number. Good luck.

MSC6

I'll post a picture of it if you need.

knkali

please post a pic for all of us.

Inthewoods

please send a picture to mwiherle@comcast.net
I just power washed the engine area and it happen after about 24 hours and 15 miles. thanks mgw

danl72

Good info.

cgw

Hi Guys - I have been experiencing the "Reduced Engine Power, Service Traction System" on my 2005 Z51 (14K miles) for a month now. I live near Jupiter, FL and there is a "corvette only" shop nearby where I frequent. It was throwing Code P2135 and they were 100% convinced that I need to replace my throttle position sensor. Unfortunately, as you know it is part of the throttle body so I was forced to replace the entire part. I did that two weeks ago and then yesterday it came back while driving. The same error and the same code. I then cleared the codes and this morning, as soon as I started the car, it came back before even moving.

I don't know what to do at all and I no longer trust my corvette guy. I don't want to just start throwing parts at it. Any advice would be greatly appreciated. Thanks.