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Stability system disabled & reduced engine power lights are on

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Posted on Jan 02, 2017

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SOURCE: what is wrong when it is showing REDUCED ENGINE

Your car has gone into a safety mode as you on board computer has detected a fault somewhere.Hence this is a protective mode in order to avoid damage to the engine etc..You will need a diagnostic device hooked up to the car in order to read or reset this error code.

Posted on Nov 19, 2009

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SOURCE: c heck engine light reduce power stability

Your PCM has found a problem in the operation of the truck. You will need to have It checked to see what code is stored in the memory of the computer. The truck is reducing power and turning all the warning lights on to let you know there is a problem that needs serious attention. It reduces power to stop from damaging the engine. Continuing to drive the truck could result is a major problem.

Posted on Jan 21, 2011

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1 Answer

I just bought an 2004 Tahoe LT and the reduced engine power light is on. And, the stability sys disabled light is on what does this mean


It means you have a problem with the electronic throttle control an with Stability control which is part of the electronic brake control module ,which means there are DTC'S - diagnostic trouble codes stored in the ( EBCM ) & in the PCM -powertrain control module . You should take to a ASE certified repair facility or the dealer !

Aug 23, 2015 | Cars & Trucks

1 Answer

How to remove the malfunction light from the dash


If you disassemble the instrument cluster to disable the light, an open circuit is created and the powertrain control module is put into a "limp in" or "service" mode. You maximum engine rpm is reduced. You maximum vehicle speed is reduced to 50 mph and several other systems are disabled (like stability control and traction control). You're better off just having it diagnosed and repaired properly.

Sep 06, 2014 | 2007 Ford Mondeo 2.0

1 Answer

What causes the "Reduced Engine Power", "Service Stability Control" and "Traction Control" warning lights to come on?


the "Reduced Engine Power", problem causes the PCM to disable "Service Stability Control" and "Traction Control" turning on the warning lights to come on for those systems . The reduced engine power is because of a problem with the electronic throttle control system or as GM calls it TAC system . Reduced Engine Power Mode
When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The PCM will continue to use the accelerator pedal for throttle control, however, the vehicle acceleration is limited.
• Limited throttle mode--The PCM will continue to use the accelerator pedal for throttle control, however, the maximum throttle opening is limited.
• Throttle default mode--The PCM will turn OFF the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The PCM will perform the following actions:
- Limit engine speed to idle by positioning the TP, or by controlling the fuel and spark if the throttle is turned OFF.
- Ignore the accelerator pedal input.
• Engine shutdown mode--The PCM will disable fuel and de-energize the throttle actuator.
© 2017 General Motors Corporation. All rights reserved.



Drive by Wire training Your best bet , take it to a GM dealer

Mar 04, 2017 | 2005 Pontiac Grand Prix GT

1 Answer

Stability system disabled light on no power


The stability system is software programmed into the ABS - antilock brake control module also the PCM - engine computer . service engine light DTC'S - diagnostic trouble codes stored . Your best bet , take it to a qualified repair shop or the dealer . You don't have the diagnostic equipment or knowledge to tackle this type of problem .

Jul 24, 2017 | 2003 GMC Yukon Denali

1 Answer

Gmc yukon denali reduced engine power stability system disabled


I had the same problem in my Yukon Denali And after 4 throttle body's, replacing gas pedal, rewiring the grounds replacing sensors, took it to not one but two GMC dealerships who were useless they can't fix their own trucks they're not the brightest !!!! After thousands of dollars I found a mechanic very familiar with this issue you want the solution it will cost ya 500$ for me to tell ya!! Just kidding I know how frustrating this problem is okay here is the fix the problem is these electric throttle bodies are GARBAGE!!!!!!! Don't matter what u do or what u replace it will come back on unless u convert your electric throttle body to the old cable throttle the actual fix was 900$ but I spent thousands and thousands trying to fix it!!! Please save your money and tell ur mechanic u want to convert to the old cable throttle!!! Gmc is well aware of the problem but won't fix it for u cuz they're useless

Sep 24, 2012 | 2006 GMC Yukon Xl Denali

1 Answer

Can i turn off the stabilitrak of my equinox by dosconecting the battery?


Hello. sometimes you can reset the system by disconnecting the battery. but sounds like you have a electronic throttle body concern. this will cause the reduced power message and the stability light to come on. you really need to have the system scanned for trouble codes to see what is going on

Dec 18, 2011 | Chevrolet Suburban Cars & Trucks

1 Answer

C heck engine light reduce power stability sys disabled t\c


Your PCM has found a problem in the operation of the truck. You will need to have It checked to see what code is stored in the memory of the computer. The truck is reducing power and turning all the warning lights on to let you know there is a problem that needs serious attention. It reduces power to stop from damaging the engine. Continuing to drive the truck could result is a major problem.

Jan 21, 2011 | 2003 Cadillac Escalade

1 Answer

My 2006 Chevy Tahoe displayed the Reduced Engine power and stability control system turned off. Drove the vehicle home at reduced power never. Temp OK, Battery gage read lower than the normal +14V, Oil...


the post that everybody refuse to read or acknowledge is the first simple instruction
when ever there is a problem , have the fault codes read first
it is free at autozone and other parts shops
then knowing what the problem is you can have it fixed at an accredited service center for less money that fixing what is not faulty costs

Apr 05, 2017 | Chevrolet Tahoe Cars & Trucks

1 Answer

Stability system disabled lights come on,why? also reduced engine power lights come on and the car doesnt go over 30 mi per hr


check the gas pedal if it doesnt have a cable it tends to go out it is a drive by wire system g.m. vehicles have a common problem

Feb 12, 2010 | 2003 GMC Yukon Denali

2 Answers

What is wrong when it is showing REDUCED ENGINE POWER &STABILITY SYS DISABLED


Your car has gone into a safety mode as you on board computer has detected a fault somewhere.Hence this is a protective mode in order to avoid damage to the engine etc..You will need a diagnostic device hooked up to the car in order to read or reset this error code.

Nov 19, 2009 | 2003 Cadillac Escalade

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