‘Fly-by-wire’ systems are being used in a lot of cars and pickups on the road today and one of the most common ‘Fly-by-Wire’ systems in use is the one that graces most of the newer GM pickups: the Electronic Throttle Body.
![Gm fly by wire gas pedal throttle body parts Gm fly by wire gas pedal throttle body parts](/uploads/1/1/9/6/119613020/664305448.jpg)
Speartech was one of the first companies to offer electronic throttle control systems on retrofit systems for hot rods and street machines back in 1999. Control systems using electronic throttle bodies are often referred to as 'fly by wire' or 'drive by wire.' PedalMAX® has been designed to improve the throttle response and driving characteristics on YOUR vehicle. All vehicles built today are equipped with 'drive-by-wire' electronic throttle. One of the biggest consumer complaints has been poor throttle response and lag, especially in.
- Direct bolt in for C10's with throttle cables, square bodies, and ck trucks. Fits great and bolts in with minor modifications into Gm A-body cars with throttle cables, Chevelle, Monte Carlo, Malibu, GTO, Cutlass etc. Compatible Harness: MUST BE USED WITH TAC MODULE TO PEDAL HARNESS HAR-1022-C10 on Blue/Green PCM with Tac Module ACC-1011.
- Gas Pedal Pad Replacement fits Many Compatible with Chevy GMC Repair Kit See Listing for Application Details GMC OEM NEW Accelerator Pedal Pad w/Position Sensor 07-11 Chevrolet 25832864 Dorman HELP! 20759 Accelerator Pedal Pad.
Everything you read about these systems indicate that they are the best thing to ever happen to automobiles. One of the statements that really makes me laugh is this one: “The ETC delivers outstanding throttle response and greater reliability than a mechanical connection”.
The problems I've had with a throttle cable are so few and so far inbetween that I don't recall when was the last time I replaced one.... When was the last time you replaced a throttle cable?
OK, enough of my ranting, in this article, I'll focus on the circuits of the Electronic Throttle Body and how to perform some basic tests on it. You may also be interested in the following tutorials:
- P0120 TP Sensor 1 Circuit Malfunction (With Electronic Throttle Body).
- P0220 TP Sensor 2 Circuit Malfunction (With Electronic Throttle Body).
Puedes encontrar este tutorial en Español aquí: Lo Esencial del Cuerpo del Acelerador Electrónico (GM 5.3L, 6.0L) (en: autotecnico-online.com).
Circuit Descriptions Of The GM Electronic Throttle Body
There are three major components of the GM Electronic Throttle Body and they are:
- Throttle body.
- Throttle Actuator Control (TAC) module.
- And Accelerator Pedal Assembly.
In this section, we'll focus on the Electronic Throttle Body. As you have probably already observed, there are 8 wires sticking out of the Electronic Throttle Body.
When looking down at the Electronic Throttle Body's connector, the top row (from left to right) has 4 wires which are labeled from A to D (see photo).
The second row (bottom row) from left to right, the wires are labeled E to H (see photo).
Gm Fly By Wire Gas Pedal
and here are their specific descriptions:
- A: (Yellow wire) TAC Motor Control -1.
- B: (Black with White stripe wire) Low Reference... Sensor Ground.
- C: (Brown wire) TAC Motor Control -2.
- D: (Black) Low Reference... Sensor Ground.
- E: (Light Blue with Black wire) 5 Volt Reference.
- F: (Purple) TP Sensor 2 Signal.
- G: (Dark Green) TP Sensor 1 Signal.
- H: (Grey) 5 Volt Reference.
Fly By Wire Throttle Body
Let's turn the page and find out how the throttle body works in this system...
Gas Pedal Lyrics
Hi guys. I have a problem with the Drive-By-Wire. First time I upgraded the firmware to the latest V4. I used throttle body GM PN 12605109 with gold blade with stock accelerator pedal, that comes with the new trucks 25832864. I did the Autoset the blade open full 100% just when I click start TPS Autoset, then in next order to press the pedal two times it's not open more than 20%. So I searched more and I found DBW instructions Holley only following factory DBW throttle pedal GM P/N 10379038. We installed the pedal and I did same steps to TPS Autoset and I got same results. The blade just open when click start when I press on the pedal 2 time the blade open 20%. I startup the truck and trying to press on pedal maybe there is response to open 100%, but it's never go more 20%. https://vimeo.com/224000364