Question about 2003 Ford Thunderbird

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Computer says throttle control actuator module is the problem. Barely gets to 30 mph. Next time, car runs fine. Another time, same problem, but no wrench light on this time.

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  • Ford Master
  • 4,369 Answers

Go to autozone and have them run free computer scan and report DTC code here. It sounds like TPS sensor is problem. Throttle position sensor.

Posted on Sep 11, 2010

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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RJones1125
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SOURCE: wrench indicator - Electronic Throttle control

replace the fuel filter !!!

Posted on Dec 01, 2009

tommyboinow
  • 324 Answers

SOURCE: Sticky deceleration.

get a can of carberator cleaner, and a bottle of white lithium grease, the spray kind,

spray the throttle springs really good with the cleaner, let it dry, and spray the lithium grease on it, and work the throttle back and forth, this should solve your problem.

Posted on Nov 26, 2008

  • 1 Answer

SOURCE: my air mass sensor, throttle valve actuator problem.

yoy need to change both the Air Mass Sensor and throttle valve actuator to eliminate this problem. The actuator is pretty pricey but thats the ONLY solution i'm afaraid.

Posted on Jun 09, 2009

  • 278 Answers

SOURCE: im having issues with my 03 linconl ls the check

I would start with the coils. Almost all problems seem to be from that area. Maybe buy one at car salvage and shot gun it out. I think it's worth a try. Need to start eliminating possible causes. Yes alot of codes - need to find a commom dinomatator. Good luck

Posted on Oct 15, 2009

johnjohn2
  • 5763 Answers

SOURCE: high rpm with throttle closed and the car go 70

may have vaccum leak or bad tps sensor,also make sure throtle body plate is clean and not sticking. start there first.

Posted on Nov 26, 2009

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How to enable starting on 2005 buick terazza


Complex electronic's ,your best bet , take it to a qualified repair shop . DTC'S - diagnostic trouble code's stored .
Starting Disabled
Refer to Throttle Actuator Control (TAC) System Description .
Purpose
The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions:
• Accelerator pedal position (APP) sensing
• Throttle positioning to meet driver and engine demands
• Throttle position sensing
• Internal diagnostics
• Cruise control functions
• Manage TAC electrical power consumption
The TAC system includes the following components:
• The APP sensors
• The throttle body assembly
• The powertrain control module (PCM)

Computer controlled throttle .

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I have a Chevy Malibu 2012, 62000 miles. Problem has happened a few times. I start car and runs like I have bad gas, it will only go 20-25mph even with pedal to the floor. I can stop turn off and it's...


Take your Malibu to a competent mechanic (possibly ASE certified) who can verify DTC P1516 and replace the throttle actuator control module without selling you unnecessary parts and service and guessing that the O2 sensor might be defective.

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Flash computer 2010 chevy equinox Abs, traction control, ck engine lights all come on. Vehicle goes into "safe" mode Drives at about 5 mph until I turn off & restart after 5 mins


Probably caused by the electronic throttle control . How many miles on the vehicle ? The gas pedal has position sensors that the PCM - engine computer uses to know how much to open the throttle plate .
Drive by Wire Function and diagnostics by Wells
What engine ?
The throttle actuator control (TAC) system is used to improve emissions, fuel economy, and driveability. The TAC system eliminates the mechanical link between the accelerator pedal and the throttle plate. The TAC system eliminates the need for a cruise control module and idle air control motor. The following is a list of TAC system components:
• The accelerator pedal assembly includes the following components:
- The accelerator pedal
- The accelerator pedal position (APP) sensor 1
- The APP sensor 2
• The throttle body assembly includes the following components:
- The throttle position (TP) sensor 1
- The TP sensor 2
- The throttle actuator motor
- The throttle plate
• The engine control module (ECM)

May 29, 2017 | Cars & Trucks

1 Answer

Throdlebody and gas peddle out of sink won,t go faster than 30


If you would like help we would need the DTC - diagnostic trouble code .Is their a Reduced Engine Power Mode message showing on the instrument cluster ?
Reduced Engine Power Mode
When the PCM detects a problem with the throttle actuator control (TAC) system the PCM enters one of the following Reduced Engine Power Modes:
• Acceleration Limiting--The control module will continue to use the accelerator pedal for throttle control, however the vehicle acceleration is limited.
• Limited Throttle Mode--The control module will continue to use the accelerator pedal for throttle control, however the maximum throttle opening is limited.
• Throttle Default Mode--The control module will turn off the throttle actuator.
• Forced Idle Mode--The control module will perform the following actions:
- Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned off.
- Ignore accelerator pedal input.
• Engine Shutdown Mode--The control module will disable fuel and de-energize the throttle actuator.
IF you do not know this your best bet would be to take to a qualified repair shop .
DTC P0506
DTC P0507
The throttle actuator control (TAC) motor is controlled by the powertrain control module (PCM). The DC motor located in the throttle body drives the throttle plate. In order to decrease idle speed, the PCM commands the throttle closed reducing air flow into the engine and the idle speed decreases. In order to increase idle speed, the PCM commands the throttle plate open allowing more air to pass the throttle plate. If the actual idle RPM does not match the desired idle RPM within a calibrated time, this DTC sets.

Jan 05, 2017 | Cars & Trucks

1 Answer

Loss of power on dash and operates only at idle no matter how far i press on the gas pedal


Throttle Actuator Control (TAC) System Description
You have APP- accelerator pedal position sensors or one of the Throttle position sensors is going bad ! In the (TAC) system ! This is drive by wire or electronic throttle control . If you take it to the dealer or a ASE certified repair shop they can check the DTC'S - diagnostic trouble codes ! This is nothing for a DIYer to mess with ! This system can set 7 different DTC'S

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 control module will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.

?€¢
Limited throttle mode--The control module will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.

?€¢
Throttle default mode--The control module will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.

?€¢
Forced idle mode--The control module will perform the following actions:

-
Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned off.

-
Ignore accelerator pedal input.

?€¢
Engine shutdown mode--The control module will disable fuel and de-energize the throttle actuator.


Drive by Wire Function and Diagnostics by Wells

May 14, 2015 | 2004 Chevrolet Silverado 2500 Crew Cab

1 Answer

When driving 2006 LINCOLN LS the car will drop down to 20mph without warning, Why is this


Google search got this:
Ok so I looked up the codes and P2107 is for "Throttle Actuator Control Module Processor" and P2110 is for "Throttle Actuator Control System - Forced Limited RPM"
I think P2110 is thrown and active because there was an error with the throttle body module/part. There is a list of causes for P2107:
Possible causes
- Foulty Throttle Body
- Faulty Throttle Actuator Control Module
- Throttle Actuator Control Module harness is open or shorted
- Throttle Actuator Control Module circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
test the electrical connection on the part e to see if it's loose or corroded at all.
I'm also going to change my coil packs. Maybe if one of those are going out, the computer might throw this code too? Wouldn't think so, but maybe.
What was happening is, when I accelerated, sometimes the car would just die (well, I thought it was dying but was actually going into that forced Limited RPM mode). If I turn the car off and start it back up, all good again.
The throttle body is 422.94 OEM, so... yeah...
Read more: http://forums.automotive.com/70/9635379/general-auto-repair/04-lincoln-ls-error-codes-p2107-p2110/#ixzz3Ssbd2WnJ
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Feb 26, 2015 | 2006 Lincoln LS

1 Answer

Check engine light, low engine power


You get a reduced power message ? Your vehicle has electronic throttle control or also known as drive by wire . Your gas pedal is electrically hooked to the PCM - engine computer . Has two position sensors inside as does the throttle body on the engine . Over time these position sensors wear an cause improper signals to the computer an the computer will put the vehicle into a limp mode . Most cases it will drive but only at about 20 mph . There are videos on youtube showing how this works , how to diagnose etc....
This P0449 is something different , has to do with the Evap. emissions .
DTC P0449 Evaporative Emission (EVAP) vent Solenoid Control Circuit . Planty of videos on youtube for GM trucks on this problem .
DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
The predicted throttle position (TP) is compared to the actual throttle position. The two values should be within a calibrated range of each other. Both the powertrain control module (PCM) and the throttle actuator control (TAC) module redundantly monitor the predicted and actual throttle position. DTC P1516 sets if the PCM detects an out of range condition between the predicted and the actual throttle position.
Look's like you have three different problems , Thought p1516 an p1258 were going to point to same electronic throttle problem .

P1258
Engine Coolant Overtemperature - Protection Mode Active
PCM
DTC P1258

Circuit Description
The powertrain control module (PCM) uses the ECT sensor to monitor the engine for an over temperature condition. This condition occurs when the coolant temperature is above 132°C (270°F). When an over temperature condition is present, DTC P1258 will set. The PCM will disable two groups of four cylinders by turning OFF the fuel injectors. By switching between the 2 groups of cylinders, the PCM is able to reduce the temperature of the coolant.

Check the engine cooling fans for proper operation.
Are the engine cooling fans operative? Have you ever had the thermostat changed ? Is the coolant full ?

Check out youtube videos ! Just type your codes into the search bar .

May 02, 2017 | 2006 Chevrolet Silverado 2500HD 2WD

1 Answer

What does it mean when code p1516 shows up on a06 chevy impala


It means your Throttle Actuator Control Module senses a problem with your Throttle Actuator Position performance. Here is a link to help you out...
P1516 Chevrolet Throttle Actuator Control Module Throttle Actuator...

May 24, 2017 | 2006 Chevrolet Impala

1 Answer

2003 Chevy Tahoe 4X4. Started driving and vehicle would not accelerate above 40 MPH. Attached a computer diagnostic to it and it gave a code of P1518.


Tac(throttle actuator control) module to pcm(powertrain control module) circuit problem.Check wire connection on the electric sensor on gas pedal.Most likely just a bad and or dirty connection.See this often on work trucks.

Feb 15, 2011 | Chevrolet Tahoe Cars & Trucks

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