Question about 2004 Volkswagen Jetta

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What is a TAC module?

Im havein a problem with the car starting. Think its a fuel pump. i need to know what the tac module is

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This is probably more info than you wanted:
TAC 
But simplified, it means there is no more connection between your foot and the fuel supply by means of a cable.
I'm not too sure this is a good thing - we all know how well some electronic devices work . . .

Posted on Dec 22, 2008

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Posted on Jan 02, 2017

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Buick lucerne starting disable throttle causes car not to crank


Drive by wire , electronic throttle control . What is it you would like to know Mr. Woods ? Can throttle cause car not to crank ? What year Buick ?
STARTING DISABLED SERVICE THROTTLE
Throttle Actuator Control (TAC) System Description for the 4.6L engine or Throttle Actuator Control (TAC) System Description for the 3.8L engine.

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)

Drive by Wire training

Jan 01, 2017 | Buick Cars & Trucks

1 Answer

Wiring diagram for code u0107 2004 avalanche


Do you even know what DTC U0107 involves ?
DTC U0107
Lost Communications With Throttle Actuator Control (TAC) Module

The throttle actuator control (TAC) module and the powertrain control module (PCM) communicate via a dedicated serial data circuit. This serial data circuit is separate from any other serial data circuit on the vehicle. Accurate transmitting and receiving of serial data requires not only good circuit integrity, but also adequate system voltage. This diagnostic test monitors the accuracy of the serial data transmitted between the TAC module and the PCM. If the PCM detects a loss of data or invalid data, this DTC sets.

Diagnostic Aids
Important: Reprogramming the PCM may cause a communication error between the PCM and the TAC. If the PCM detects a communication error, DTC U0107 sets. Clear any DTCs from the memory that may have been set by Reprogramming.
• DTC U0107 sets if the battery voltage is low. If the customer's concern is slow cranking or no crank because battery voltage is low, ignore DTC U0107. Clear any DTCs from memory that may have set from the low battery voltage condition.
• DTC U0107 sets when there is a short to B+ on the TAC module ground circuit. Inspect the fuses for the circuits that are in the TAC module harness--i.e. cruise, brake. An inspection of the fuses may lead you to the circuit that is shorted to the TAC module ground circuit.
Replace the TAC module. Refer to Electronic Throttle Actuator Control Module Replacement .
Did you complete the replacement?

Nov 20, 2016 | Cars & Trucks

1 Answer

U0107 code 2004 avalanche


U0107 CHEVROLET - Lost Communication With Throttle Actuator Control Module.
Possible causes - Faulty Throttle Actuator Control (TAC) module
- Throttle Actuator Control (TAC) module harness is open or shorted
- Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires)

Nov 20, 2016 | 2004 Chevrolet Avalanche

1 Answer

My H2 2006 jerks forward sometimes while I'm stopped at a light. My mechanic just had it there and no warning lights are on anywhere. Has anyone had that issue?


Have you had it to the dealer ? May have TSB - technical service bulletin. TSB'S are factory technical information publications on know problems with fixes for dealer technicians . May also have up dated soft ware for your vehicles PCM - powertrain control module that may fix this problem . Could have a problem in the
Throttle Actuator Control (TAC) System - Electronic throttle control .Not all problems set trouble codes . And all car manufacturers have some problems with these systems .
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 components include the following:
?€¢
The APP sensors


?€¢
The throttle body assembly


?€¢
The TAC module


?€¢
The powertrain control module (PCM)

Jun 10, 2016 | Cars & Trucks

4 Answers

It will not accelerate. I push on the gas and it won't go. I changed the oil a week ago and about a year ago i changed the fuel pump


Well an oil change is probably not the cause.
What IS it doing? You're telling me what it isn't doing...
Does the motor rev up?

Jun 10, 2015 | 2002 Chevrolet Tahoe

1 Answer

What is code 2119


Possible causes

- Faulty Throttle Actuator Control (TAC) module
- Throttle Actuator Control (TAC) module harness is open or shorted
- Throttle Actuator Control (TAC) module circuit poor electrical connection
- Throttle plate sticking due to carbon build-up
- Engine Control Module

Aug 19, 2014 | 2003 Cadillac CTS

1 Answer

Engine won't start and shows trouble code P1516 and reduced engine power light is on


Here is the definition of the code.

Possible causes - Faulty Throttle Actuator Control (TAC) module
- Throttle Actuator Control (TAC) module harness is open or shorted
- Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires)

P1516 CHEVROLET Description The Throttle Actuator Control (TAC) module contains data which is essential for proper TAC operation. The TAC module continuously test the integrity of this data. When the TAC module is unable to write or read data to and from Random Access Memory (RAM), or the TAC module is unable to correctly read data from the flash memory or and internal TAC module processor fault is detected and the Detected Trouble Code (DTC) is set.
Read more: http://engine-codes.com/p1516_chevrolet.html#ixzz286Gl3cSo

Sep 28, 2012 | 2002 Chevrolet TrailBlazer

1 Answer

I have a 2004 chevy trailblazer that gave me code p1518


P1518 CHEVROLET Description The Throttle Actuator Control (TAC) module contains data which is essential for proper TAC operation. The TAC module continuously test the integrity of this data. When the TAC module is unable to write or read data to and from random access memory (RAM), or the TAC module is unable to correctly read data from the flash memory or and internal TAC module processor fault is detected and the Detected Trouble Code (DTC) is set.
Read more: http://engine-codes.com/p1518_chevrolet.html#ixzz21VOQMCZz

Jul 23, 2012 | 2004 Chevrolet TrailBlazer

1 Answer

2009 Ford Fusion codes 2107,2110 car slows to 30mph and will no longer accelerate


Well, those codes definately are related to why your vehicle will no longer accelerate!

P2107 is "Throttle Actuator Control (TAC) Module Processor"
This code means that the TAC portion of the Powertrain Control Module (PCM) has failed the self-test.

Posiible causes:
> TAC motor circuit harness shorted to ground
> TAC motor circuit harness shorted to voltage
> Damage Electronic Throttle Body (ETB)
> Damaged PCM

P2110 is "Throttle Actuator Control (TAC) Forced Limited RPM"

This code is informational only. It sets in conjunction with other throttle actuator control codes (like P2107 above). It is just letting you know that the PCM is limiting RPM due to a TAC malfunction, (So it doesn't do a "TOYOTA" on you and run away!"

Jul 06, 2011 | Ford Fusion Cars & Trucks

1 Answer

What does failed tac module. poor connection to the tac module, loss of voltage to the tac module


throttle actuator signal sounds like it is stuck closed or the wire to your throttle body is disconnected loose dirty

Sep 14, 2010 | 2000 Ford Windstar

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