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Gm tac module location. All parts are backed by the GM's warranty.

Gm tac module location. The TAC module and the PCM monitor the commanded throttle position and compare the commanded position to the actual throttle position. Select Your GM Model below to shop for more parts from its entire OEM parts catalog. 2L Chevrolet TrailBlazer and GMC Envoy can be found here: TAC System Wiring Diagram (2002-2005 4. Learn what Throttle Actuator Control Module Throttle Actuator Position Performance means, location and how to repair. The Ground is listed as G104 on TAC module schematic which is incorrectly labeled on SI document ID 855376. Apr 4, 2003 · This is a TAC module for your drive by wire (DBW) gen 3 LS style engine setup. Sep 11, 2025 · PART NUMBER : 12590008. Mar 11, 2016 · Originally Posted by Ultra RV Tech 12588924 is the correct TAC module for your VIN. Repairing the TAC module harness. Check engine light comes on, service traction control message comes on, and reduced engine power comes on and the car wont go more than 5mph. It checks each frequency and makes sure all are responding to the same parameters. The TAC module HAS TO MATCH pcm fairly close. TAC module is part number 12588923 or the compatible 12573059. Jul 28, 2018 · The Throttle Actuator Control (TAC) Module is the electronic throttle body on the 2004, 2005, and 2006 3. 9% positive Jun 16, 2014 · Hello. Is it attached to the PCM underneath the battery or inside the car in the passenger side floorboard next to the fuse box :confused: Chevy Mechanic: Dimitri A The most common solution for this issue is to replace the TAC module itself. Still reduced power mode. Shop now for fast shipping and easy returns! APPLICATION: 2003 - 2007 Vortec Drive By Wire Engine Conversions with 24x Engines. I double checked ours and the stamped manufacturer # is TMD1-160F1. Aug 16, 2010 · One feeds 5 Volts DC from the TAC Module (this is circuit is known, in GM tech terms, as the 5 Volt Reference Circuit). During the battery saver mode, the TAC module removes the voltage from the motor control circuits, which removes the current draw used to maintain the idle position and allows the throttle to return to the spring loaded default position. 3 was cable throttle body, and now is drive by wire. The older, 02 down stuff use a special TB and TAC module for sure, and they are big dollars. The Electrical systems are common between the families. The 2006 gas pedal harness will have a large 10 position connector on one end (6 pins used) and a smaller 6 position connector on the gas pedal end. Assembled with 12 inch lengths of automotive TXL wire. Have you checked if the TAC module is getting a proper power and ground connection? Chevy Mechanic: Carhelp4u The TAC module is situated on the driver's side of the firewall, adjacent to the brake booster. 2L Chevrolet TrailBlazer). I noticed that the missing wire is the dark blue wire which is a signal wire. This code means that the Throttle Actuator Control (TAC) Module and other control modules on the vehicle are not communicating with Jan 7, 2023 · Here are some common P1516 DTC causes. Maybe it's commanding more or less throttle % than needed, which is okay enough for it when cold, but not when warm. TAC module is part number 12590008. (the only reason i say escallade is because its kinda How to fix a P1516 engine code: Throttle Actuator Control Module Throttle Actuator Position Performance Possible Causes of a P1516 Code: Bad Throttle Body Throttle Body Wiring Harness Bad (TAC Part #599-959Remanufactured Throttle Actuator Control ModuleApplication Summary: Cadillac 2005-03, Chevrolet 2009-03, GMC 2009-03, Hummer 2007-03, Workhorse Chasing what I believe is a bad ground from the TAC module. If the part # matches then it would be the same, otherwise you would need to contact a GM dealer to have this part looked up. Jan 12, 2024 · Inspect the TAC module power and ground circuits and the TAC module/PCM serial data circuits for intermittent connections. This TAC was removed from a running vehicle then 13 point inspected and on vehicle tested for full function. Remove water from the connector. The TAC module is responsible for controlling the throttle valve in the electronic throttle control system. Sep 1, 2025 · LS Tac Module Location The 1967 - 1972 Chevrolet & GMC Pickups Message Board Genuine Delphi (GM Original Equipment Manufacturer - OEM) 10 wire Metri-Pack 150 connector replacement pigtail for Throttle Actuator Control Module (TAC) within 2005-2007 GM LS-Series Truck, Van, and SUV engine harnesses. Thanks Dave Jan 22, 2004 · C5 Tech - Anyone know what the Heck a TAC module is???? - My car has been giving me this probably lately. if you REALLY REALLY want to put a 90 mm LS2 TB on our trcusk you would need the following: 2003 Escallade TAC module, 2003 Accelerator Pedal ASM. Sep 6, 2025 · ON VEHICLE LOCATION : Under hood, drivers side, on firewall This listing is for one 25173339 Throttle Actuator Control Module, commonly referred to as the TAC. , Europe, and UK from 2002 to 2004. May 6, 2024 · How to fix U0107 Code: Lost Communication with Throttle Actuator Control Module A U0107 code is set when the throttle actuator control (TAC) module can’t communicate with other vehicle modules Aug 30, 2024 · How to repair P1518 Chevrolet — Throttle Actuator Control Module Performance Lost Communication with Throttle Actuator Control (TAC) Module What does that mean? This is a generic communication system diagnostic trouble code that applies to most vehicle makes and models, including but not limited to Dodge, Ram, Chevrolet, Ford, GMC, and VW. Where is the TAC module located? Reply 1: Hello and welcome to the site The throttle control module is located under the hood on the right side. Otherwise, you are Sep 6, 2025 · PART NUMBER : 12588923. I have a question for ya. APPLICATION: This Harness connects the TAC module to the pedal in drive by wire applications on 2001 2002 2003 2004 2005 Gen III Vortec engines. Check electrical connectors for corrosion or looseness. P1514, P1515, P1516, P2101 = unable to achieve or hold desired throttle position. Theft Deterrent Control Module On right side of steering column. I have found the same TAC module was used in the 2003 to 2005 pickups. 3L is mounted on the throttle body assembly. Explore symptoms, causes, and diagnostic steps at RepairPal. May 29, 2015 · So it intermittently has the reduced engine power issue at idle and also has a rough idle, but not when cold. The throttle actuator control module on a 2003 GMC Sierra 1500HD is integrated with the electronic throttle body, located on the intake manifold. Apr 27, 2009 · Does anyone have a wiring diagram that shows the wires going to the TAC module? My Haynes manual only has the wiring diagrams for non-ETC engines. Gas pedal is a sensor, that feeds to a TAC Module (Throttle Actuator Control) The TAC module monitors the gas pedal sensor, then commands the throttle body motor to set the desired throttle setting. Symptoms of failure include poor acceleration and engine hesitation. If this wire does go directly to the engine block grounding location at G103, I'm not sure how you would get high resistance from there to the battery ground. There are nine wires at the APP sensor (which is next to the gas pedal) but only eight come into the TAC under the hood. Last February we bought a 2003 Tiffin Allegro Bay on a 2002 The TAC module in this system is intergrated into the ECM. I have a on going reduced engine power problem with my 2001 GMC c3500hd cab/chassis with 8. The TAC achieves throttle positioning by providing a pulse width modulated voltage to the TAC motor after determining the drivers intent and then calculating the appropriate throttle response. com offers the great deal for genuine GM parts, 12588923. The 99-02 TAC MUST be used with a 99-02 PCM and proper operating system in the PCM, same goes with the 2003+ TAC. I have replaced throttle body, throttle body harness, accelerator pedal sensor, TAC module, TAC module harness between TAC module and pedal sensor How To Test TPS 1, TPS 2, And The Throttle Actuator Control Motor Of The Electronic Throttle Body. Find the right Dorman OE Solutions Throttle Actuator Control Module for your vehicle at O'Reilly Auto Parts. The symptoms attributed to the P1516 code include a check engine light and little to no throttle response. Throttle Actuator Control (TAC) Module The TAC module is the control center for the electronic throttle system. Based on the APP sensor inputs, the PCM then adjusts the throttle opening via a motorized actuator located inside the throttle body to match the amount of throttle you're trying to give the engine. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Condition: New Replaces: 12573059 Nov 8, 2018 · Rearview Camera Image Display Module In chassis harness, center rear of vehicle. I bought a TAC module and pedal assembly from a 2005. Codes are all TAC/DBW related. Using 242 Blue & Green PCM NOTES: This TAC Module work w/ 6 pin vortec truck pedal ACC-1009 using HAR-1026 harness or C10 Swap peda l ACC-1049 using HAR-1022-C10 Harness. The U0107 code is caused by faulty CAN bus wiring, a dead battery, a bad TAC control module, or bad TAC control module wiring. , obviously an LS-2 Throttle Body & aboot $200 worth of connectors being that the later model TAC modules have a detection for a short between the ref. Apr 25, 2025 · When the ECM detects a false TAC position between the predicted and actual conditions, it shows the P1516 code. Mar 22, 2020 · Hey guys, new to the site. Jun 4, 2015 · Figure 2. All the wiring for the throttle body and gas pedal goes to the TAC module, except for the Power and Ground wires. Have a replacement unit but can't locate that pesky sucker. It’s best to get your vehicle to a safe location and have it towed to a repair shop if needed. Also the 06-07 pedals were Jul 4, 2006 · This is a TAC module for your drive by wire (DBW) gen 3 LS style engine setup. By using three sensors, and by having var-ied values from sensor to sensor, the TAC module and the PCM determine the actual position of the accelerator pedal, as well as perform diagnostic tests on the sensor and its circuits that are out of range when compared to The following are key TAC Tips as well as information from recent TAC cases to help resolve some known concerns or identify normal conditions on various GM models. The TAC you have is TAC 12573059 which is an 03-05 TAC. This a sample technical training video on Throttle Actuator Control (TAC) Systems designed to provide an understanding of Accelerator pedal position sensors, Throttle position sensors and the Dec 30, 2010 · I have an 03 Silverado,,it lost power today,and set code p1516,,where is the throttle actuator control module located? could it be a bad throttle position actuator motor? After replacing the TAC (Throttle Actuator Control) module, reprogramming is often required to sync it with the vehicle’s ECU. Common symptoms of the U0107 code May 27, 2020 · Hey everyone, I have a 2004 yukon denali 6. I'm at a complete loss The codes it currently has are: P0102 Mass or Volume Air Flow A circuit Low (SES pending, Current. The TAC Module is not part of the internal workings of the PCM and is usually located on the driver side of the firewall. The TAC is the interface module between the gas pedal, ecm, and throttle body on applications that had traction control identified as RPO (regular production option) code KUP. Apr 2, 2005 · About this 12573059 Module This part is a module, module, for General Motors cars. 8l, 4l80e, 2006 express van ecu and harness with 3 bar os. The exact same throttle body is used on the following vehic Drive by wire is a system that uses a separate module called a TAC module. 2006 The TAC module part# changed, and was used with a different gas pedal as well. 0L engines covered by this article. I want to have this repaired to keep as a spare. Drive By Wire = Electric motor controlling throttle blades. Getting reduced engine power rewired throttle body connector did not remedy? tac module location? Reply 1: The TAC modules go out all the time they Mar 6, 2017 · Here's a picture of the TAC module. Sep 6, 2024 · The P1518 GMC code indicates a problem with the Throttle Actuator Control Module (TAC) performance. Symptoms of failure include poor throttle response and engine hesitation. ” This code is triggered when the throttle actuator control (TAC) module can’t communicate with other vehicle modules. The TAC module regulates engine speed using PCM details. 0 Vortec. If water intrusion occurs, multiple DTCs may set without any circuit or component conditions found during diagnostic testing. Understanding the TAC module’s location is crucial for diagnostics, repairs, and understanding how electronic throttle control enhances your driving experience. Testing the circuit to find exact cause is going to be difficult because it is an intermittent condition. This is due to the Passlock sync info, between all of the components that make up the system, being lost. This module is responsible for controlling the throttle body’s position based on the driver’s input. 3 days ago · PART NUMBER : 12574221. Picture shows both sides of the TAC. The locator for SI states that G103 is located on the left hand side which is incorrect. When communication is lost, the ECM cannot control the throttle, leading to potential stalling or Oct 10, 2007 · An ACDelco GM Original Equipment Fuel Injection Throttle Control Actuator Module is an electrically operated motor assembly that controls the throttle plate (s), and is a GM-recommended replacement for your vehicle’s original component. Use a compatible diagnostic scanner to access the ECU and perform the relearn or initialization procedure. TAC Module The TAC module acts as a bridge in-between the signals that are sent to the ECU, TPS, and APP. iRV2 Forums > THE CHASSIS CLUB FORUMS > Workhorse and Chevrolet Chassis Motorhome Forum Replacement for Throttle Actuator Control - Vortec 8. You can find the TAC system wiring diagram for the 2006-2007 4. 3/MT. 1 May 12, 2019 · Would someone kindly inform me where the Throttle Actuator Control Module (TAC) is located? I own an 05 Envoy Denali 5. I have a 1997 Auto Vette with 39K miles. To troubleshoot, inspect the throttle body for carbon buildup and clean it if necessary. Fix the electronic connection in the module’s circuits. i constantly get code U0107 lost comm with tac if i go over 40% throttle or make quick blips of - Inspect the TAC module power and ground circuits and the TAC module/PCM serial data circuits for intermittent connections. It is labeled as number 1. This ensures proper throttle calibration and communication. Hello gentleman, I just finished a LM7 (5. Dec 27, 2016 · I also redid my ignition switch just incase that was giving the problem. It receives an electrical signal from the engine control module and opens the throttle plate based on input from the accelerator pedal module. They have been tested and are in working order. The TAC system uses electronically erasable programmable read only memory (EEPROM) and is self-diagnosing. May 31, 2018 · TAC Module for Vortec - Drive By Wire The 1947 - 1959 Chevrolet & GMC Pickups Message Board Jan 24, 2019 · The above TAC circuit wiring diagrams apply only to the 2006 and 2007 4. What about this Throttle Actuator Control (TAC) module? or just throw a new or used throttle body next? I'm tending to go used since I'm not certain if that's the issue? suggestions 40. 3, still manual transmission. Jan 18, 2019 · The TAC circuit wiring diagrams in this page apply only to the 2002, 2003, 2004, and 2005 4. & Nov 14, 2016 · I am posting here because I need a fresh perspective on a recurring problem and this forum gets more traffic of RV knowledge than any other. If the code pops up when the engine is cold (KOEO), the issue is often a problem with the wires between the throttle body and TAC control module. S. I might take the part number to the GM dealer and see if they can look up what applications it was used in. Throttle position sensor located on the throttle body. Aug 26, 2019 · Repair Information for P1518 Chevrolet code. It fits for General Motors vehicles which were sold in the U. I can't find a tac module anywhere, parts stores/dealer/online . All of our parts are genuine OEM parts so we guarantee your Fuel Injection Throttle Control Actuator Module will perfectly fit your 2003-2007 vehicle, and you'll get your parts for less than you would pay at your local parts counter. was curious if this would work for me, thank you! It has RVC (regulated voltage control, the "smart" alternator control module) so that means it has to be at least a 2005, and at the most a 2007 because its an LS1-style harness (GMT-800). 3L TPS Replacement of TAC module. DTC U0107, 3 days ago · Find many great new & used options and get the best deals for 03-05 Chevy Silverado GMC Yukon Gas Pedal Drive By Wire TAC Module Swap GM at the best online prices at eBay! Free shipping for many products! Inspect the TAC module power and ground circuits and the TAC module/PCM serial data circuits for intermittent connections. Ensure the ground wire behind the engine doesn’t block the passenger side. Learn what Throttle Actuator Control Module Performance means, location and how to repair. Start by inspecting the TAC module’s electrical connections for corrosion or looseness. The TAC module also communicates with the PCM. Battery saver mode--After a predetermined time without engine RPM, the ECM commands the battery saver mode. History) P0327 Knock Sensor 1 Circuit The throttle actuator control on a 2004 Chevy Silverado 1500 5. Jun 17, 2012 · C5 Tech - 2001 TAC Module rebuild ? - I have a TAC module pn BA 25311783 C from my 2001 corvette. The TAC module and the PCM communicate via a dedicated redundant serial data circuit. Other then that, and Power/Ground, The throttle body wiring and gas pedal wiring ALL go to the TAC module. This is version is typically used in 2000 thru 2002 GM Trucks with 4. Trailer Brake Controller Module (TBCM) (20/30 Series) (2) Left rear frame rail. Oct 13, 2023 · This code is set when there is a problem with the TAC module. Apr 16, 2024 · To solve the U0107 code for lost communication with the Throttle Actuator Control (TAC) module, focus on diagnosing the connection failure. This original Understanding GM Tac Module Pinout: Key Components and Functions In the intricate world of automotive electronics, the GM Tac Module pin configuration serves as a critical blueprint for connecting and integrating various systems within the vehicle’s control network. This wiring module is responsible for transmitting data between the engine control module (ECM) and the electronic throttle control system (ETC). Another wire provides Ground (in GM tech terms, Ground is known as the Low Reference Circuit). I decided to ground this just in case there is a grounding issue related to the TAC Nadine because the code p1516 is where communication is lost from this module. This This Throttle Actuator Control (TAC) Module to Accelerator Pedal Position (APP) Sensor Harness is for use with most 2003-2005 GM Trucks and SUVs. Picture is of a TAC from our inventory. I can't get them out of the local wrecking yard, only new from GM. See full list on lsenginediy. Speed Scene Wiring describes the three components of a basic fly by wire General Motors engine / harness integration. The TAC module provides diagnostic information to the powertrain control module (PCM) through a dedicated serial data line. Dec 23, 2022 · GM 5. If problems persist, test the throttle position sensor and replace the Feb 10, 2005 · so down to brass tacks. The electronic throttle body and TAC module was different between Corvette and trucks. i purchased a 2006 TAC module and Harness assembly. THROTTLE ACTUATOR CONTROL MODULE The throttle actuator control (TAC) module is the control center for the TAC system. Dec 4, 2024 · Bought used ECM with vats deleted and vin swapped, new tac module, cleaned and replaced ground behind block, new throttle body and tps, new pedal position sensor, checked entire tac circuit in wiring harness. Other possible causes include; a short or break in one of the 2 data communication wires between the TAC module and the PCM, an intermittent in the 12 volt supply to the TAC module, or wiring changes that result in the PCM being powered up before the TAC module. com The P1516 code indicates a problem with the Throttle Actuator Control (TAC) module. The TAC system is self-diagnosing and provides diagnostic information to the PCM through a dedicated serial data line. Module, Electronic Throttle Actuator Control for $219. Benefits of Properly Functioning GM Tac Module Wiring The GM Tac Module Wiring is an essential component of a General Motors vehicle’s engine management system. For 97-04 Corvette, 00-02 Truck/SUV, 02-07 Van, 04-05 CTS-V. May 9, 2010 · The APP sensor is connected directly to the throttle body actuator control module under the hood. 3L, and 6. So then code p1518 went away now I keep getting code p1125. OEM Drive by Wire Gas Pedal and TAC Module with wire harness for 2003 - 2005 Chevrolet Silverado, GMC Sierra, and similar GM Full Size Trucks. Mar 28, 2024 · The TAC module stands at the forefront of this evolution, facilitating seamless communication between the vehicle’s electronic control unit (ECU) and the throttle body. 2004 Chevy Silverado 3500 6. 1 . If the issue persists, test the TAC module and throttle position sensor with a scan tool Sep 28, 2014 · C5 Tech - TAC Module Replacment with pictures - I replaced my TAC module today, here are some pictures if anyone else needs to do this. Please see this link to my problems along with back story. The TAC module is not serviced and is to be replaced with the ECM. Reset the code after cleaning or reconnecting components. 0 LQ4 2003-08 Assembled Using Genuine Aptiv/Delphi Parts (GM Original Equipment) Details EFI Performance Wiring Part # 210-0281 New pigtail assembly to repair the Throttle Actuator Control Module Pigtail for the listed applications. Here is a diagram: Jun 19, 2019 · lots to cover so ill try to keep this to the point, vehicle is a 05 Colorado with 4. If unavailable, some vehicles require a specific key cycle or driving routine to complete adaptation Engine Control Module The engine control module (ECM) is the control centre for the throttle actuator control (TAC) system. Throttle Actuator Control (TAC) Module (Diesel) Top right front of engine. The ECM determines the drivers intent and then calculates the appropriate throttle response. Engine just randomly goes to limp home mode and I lose all throttle response. Place your order online and pick it up at your local store for free. 2L Chevrolet TrailBlazer and GMC Envoy. It communicates with the PCM (Powertrain Control Module) using two specific wires. It's a genuine General Motors part with an OEM part number 12573059. 8L, 5. This harness is a reproduction of the original GM harness and features Original Equipment (OE) components. This bad boy is located on the intake manifold plenum (the photo above is of the TAC Module). The TAC module generally requires 12V switched ignition, ground, PCM serial data circuits, cruise control switches, normally open brake switch (stop lamp switch), normally closed brake switch (commonly a torque converter clutch switch), and a manual transmission The PCM monitors the APP values it receives from the TAC module (Early System) to determine the actual acceler-ator pedal position. All parts are backed by the GM's warranty. Any family specific requirements are called out in the attached documentation. This video reviews the diagnostics on a GM Throttle Actuator Controller in validating proper throttle operation and how a service technician can deal with an intermittent complaint like the one Mar 11, 2020 · The second ground I made goes from the TAC module to the fire wall. Throttle Actuator Control (TAC) Module Inspect the TAC module power and ground circuits and the TAC module/pcm data circuits for loose connections. Find top brands, exclusive offers, and unbeatable prices on eBay. I entered the color coding based on the actual lines on my car and copy/pasted the wire function because it seemed to match both the other C2 data shown lower in the file as well as the pinout guide provided by Haltech for the C2 TAC module. 54. Jan 14, 2007 · The TAC module is the control center for the throttle actuator control system. Malfunctioning TAC module Damaged/corroded wiring or connectors Bad pedal position sensor Damaged throttle body Dirty throttle body How Serious is the P1516 Code? Severe – You don’t want to drive your GM vehicle with this code set. The P1516 code is caused by problems with the throttle actuator control (TAC) module, a damaged throttle plate, wiring issues, or a powertrain control module issue. And the last wire of the three, feeds the Throttle Position (TP) Signal circuit to the TAC Module. The ECM achieves throttle positioning by providing a pulse width modulated voltage to the TAC motor. Sep 6, 2025 · PART NUMBER : 12573059. I have since swapped in a 5. I plan on getting some wire loom to make them look more factory. The engine starts and immediately stalls. Learn about the U0107 OBD-II code: lost communication with the throttle actuator control module. 8, 5. Find the right ACDelco Fuel Injection Throttle Control Actuator Module for your vehicle at O'Reilly Auto Parts. This is accomplished by monitoring the APP and the TP sensor. Aug 4, 2025 · GM TAC Module (Throttle Actuator Control) w/ Wiring Pigtails OEM# 12573059 EXPERT-AUTO-PART-REBUILDERS (11480) 98. Nov 3, 2016 · Gen 3 Drive By Wire cruise control HOW TO LSx Swaps May 3, 2004 · C5 Tech - where is the TAC Module located? - I just figure out that I need to replace the Tac module in my car. Thanks in advance. The TAC system wiring diagram for the 2002-2005 4. Aug 25, 2024 · LS Tac Module Location LSx Swaps SKU: 12588923 Other Names: Control Module Description: 2003-04. us StumbleUpon Google « Previous Thread | Next Thread » Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules Dec 30, 2010 · Repair Information for P1516 Chevrolet code. It’s basically at the top of the engine. Dec 27, 2024 · Forum Tuning GM V8 Tuning GM V8 Tuning - Engine, Gas (Gen 3) 2002 8. Mar 20, 2010 · An improperly torqued TAC module ground may be at fault. circuits. In the instance where one or more components fail, the TAC module will turn on the REP mode Throttle Actuator Control (TAC) Module The TAC module is the control center for the electronic throttle system. - Inspect the TAC module connectors for signs of water intrusion. App #1- reading 100% at all times. The 2006-2007 TAC GM 12590008. 3 or 6. Who provides this service? The module also has # 90521087 next to the bar code. I have a 2005 Silverado RCSB that started life as a 4. 3), 4l60e swap on a 1966 Chevy van. After a couple test drives the DBW throttle pedal keeps going dead. 00? Thanx in advance -=Fred=- Jun 12, 2012 · The 03-07 TAC module, TB and pedal will work as long as you can plug it in - ie 06-07 went to a small connector on the pedal. . Where is the Throttle Actuator Control Module Located? Between the air intake and the intake manifold, the TAC Module is placed. 2L TrailBlazer And GMC Envoy here: TAC System Wiring Diagram (2006-2007 4. This module is placed between the Gas Pedal and the Throttle Body. 1L Tac Module issues Mar 27, 2024 · When you step on or off the accelerator pedal, the accelerator pedal position (APP) sensors take note and relay this info to the TAC module. Inspect the TAC module connectors for signs of water intrusion. Code P1515 sets when the PCM detects the actual and desired throttle position values do not match. 3 CONFIGURATIONS, SEPARATE TAC MODULE, TAC MODULE AND THROTTLE BODY COMBINED AND NO SEPARATE TAC MODULE USED TAC Motor Connector 4 DIFFERENT BRAND MOTORS AND THROTTLE BODY CONFIGURATIONS USED TYPE USED DEPENDS ON ENGINE FAMILY AND VEHICLE PLATFORM SIMILAR IN OPERATION, BI-DIRECTIONAL CONTROL, FREQUENCY/PWM CONTROLLED, SPRING LOADED THROTTLE PLATE Aug 26, 2025 · Item description from the seller Throttle Actuator Control Module TAC Module Pigtail GM 6. Look for warning lights, erratic idling, or reduced power indicating U0107. The Message Board on the instrument cluster will read: Reduced Engine Power. Throttle Actuator Control (TAC) Module Serial Data Circuit. The Video specifically point out the TAC module , pedal harness, APP sensor GMPartsGiant. Nov 23, 2010 · How Does The GM Electronic Throttle Body Work? The Throttle Actuator Control (TAC) Module is the brain behind the Electronic Throttle Control System in the GM 4. Feb 13, 2015 · The electronic throttle systems required a throttle actuator control (TAC) module, a small black module that communicates with the PCM to control the throttle body and cruise control system. The engine control module (ECM) is the control center for the throttle actuator control (TAC) system. 5L Chevrolet Malibu. Make sure it’s compatible with your system. This document is organized as follows: Genuine Delphi (GM Original Equipment Manufacturer - OEM) 10 wire Metri-Pack 150 connector replacement pigtail for Throttle Actuator Control Module (TAC) within 1997-2004 LS1 LS6 Corvette and 2004-2005 LS6 Cadillac CTS-V engine harnesses. It looked good. This pigtail is for the Accelerator Pedal Position Sensor (APP) connection side of the TAC module. This TAC module is only used in medium duty The TAC module communicates with the PCM via two dedicated wires. Feb 15, 2015 · This schematic represents a typical GM cruise control switch wired to a TAC module. The TAC is the interface module between the gas pedal, PCM, and throttle body. This is a brand new AC Delco Module that matches 2003-2005 Applications. Where is the throttle actuator control (TAC) module located on my 2003 Fleetwood Bounder? ( Nate Simon, 05/24/2019 ) The TAC module is located on the left hand side of the steering column support. I checked the computer and its giving me P1518 code meaning PCM TO TAC Sep 15, 2023 · Diagnostic trouble code (DTC) U0107 stands for “Lost Communication with Throttle Actuator Control Module. icio. I'd change up some stuff and go with 03 if it were me This Throttle Actuator Control (TAC) Module is required for Gen III Truck/SUV/VAN Drive by Wire applications. Check the throttle body for carbon buildup that can hinder sensor signals. Jan 25, 2024 · The U0107: Lost Communication with Throttle Actuator Control Module indicates a communication problem between the vehicle’s main computer (ECM) and the Throttle Actuator Control (TAC) module. Here are the pictures of my grounds. I really think there is a loose connection somewhere along the line. Repair binding or failed throttle body if required. Nov 23, 2010 · A P1518 diagnostic trouble code (DTC). Hummer H2. Jan 26, 2025 · The C2 TAC Module correctly reflect what is found in my 2003 C5. Chevy. I'm still leaning towards something wrong with the TAC module or pedal. May 1, 2009 · C5 Tech - TAC module wiring harness replaceable? - Okay, I have been fighting an electrical issue for years (5+) and I'm pretty sure it has to do with some shady work done by my stealership (accident repairs). It's located on the driver side firewall under the hood. i then purchased a 2006 envoy/trailblazer pedal assembly as that's what fits in my vehicle physically. 0 engines and drive by wire (DBW) throttle bodies. 00 vs 140. OEM Drive by Wire Gas Pedal and TAC Module with wire harness for 2006 - 2007 Chevrolet Silverado, GMC Sierra, and similar GM Full Size Trucks. The correct ground is G103. Jan 31, 2011 · Gas Pedal and Tac Module LSx Swaps The Electrical section of the 2003 & 2004 Medium Duty C Series Body Builder Manual is not split between Family 2 and Family 3 trucks. This Throttle Actuator Control TAC Module Pigtail 3 is manufactured in-house to your desired length. 3 AWD. Jan 10, 2012 · An improperly torqued TAC module ground may be at fault. Obviously the 4. My issue is running the TAC module harness. I have swapped out the engine harness (ebay), TAC module and harness from TAC to pedal. OEM Drive by Wire Adjustable Gas Pedal and TAC Module with wire harness for 2003 - 2005 Chevrolet Silverado, GMC Sierra, and similar GM Full Size Trucks. Common symptoms related to a bad TAC may be P2108, P1516, and U0107 along with "Reduced Engine Power". Aug 5, 2022 · If good ground and voltage to TAC module and codes are not present -- problem is wiring, throttle body unit or tach module. Jul 12, 2015 · 2006 The TAC module changed P/N, and was used with a different gas pedal as well. Explore a wide range of our Tac Module selection. 0l has fault codes p2135. Aug 26, 2024 · LS Tac Module Location LSx SwapsBookmarks Digg del. uifg wvz plvep ggwewhqv zpln lavssp kozklzl naybjet twosvo gufbm