AutoCodes – Cadillac – U0107 Cadillac

U0107 Cadillac Code - Lost Communication With Throttle Actuator Control Module

Quick Answer

The Throttle Actuator Control (TAC) module and the Powertrain Control Module (PCM) communicate via a dedicated serial data circuit. Common causes include Faulty Throttle Actuator Control (TAC) Module, Throttle Actuator Control Module harness is open or shorted, Throttle Actuator Control Module circuit poor electrical connection (loose or broken wires). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: U0107 Cadillac indicates Lost Communication With Throttle Actuator Control Module.
Common causes: Common causes include Faulty Throttle Actuator Control (TAC) Module, Throttle Actuator Control Module harness is open or shorted, Throttle Actuator Control Module circuit poor electrical connection (loose or broken wires).
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 10,289

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 01, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code U0107 Cadillac Description

The Throttle Actuator Control (TAC) module and the Powertrain Control Module (PCM) communicate via a dedicated serial data circuit. This serial data circuit is separated from other serial data circuits on the vehicle. Accurate transmitting and receiving of serial data require not only good circuit integrity but also sufficient system voltage. This diagnostic test monitors de accuracy of the serial data transmitted between the TAC module and the PCM. The Diagnostic Trouble Code (DTC) U0107 is set when the Powertrain Control Module detects a loss of data or invalid data from the Throttle Actuator Control.

OBDII Code U0107 Cadillac - Lost Communication With Throttle Actuator Control Module - AutoCodes.com — U0107 Cadillac Code - Lost Communication With Throttle Actuator Control Module

What does this mean?

What are the Possible Causes of the DTC U0107 Cadillac?

Faulty Throttle Actuator Control (TAC) Module
Throttle Actuator Control Module harness is open or shorted
Throttle Actuator Control Module circuit poor electrical connection (loose or broken wires)

How to Fix the DTC U0107 Cadillac?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

There is a factory service bulletin for the U0107 code on following Cadillac vehicles:

2006 Cadillac Escalade
2007 Cadillac Escalade
2006-2007 Cadillac Escalade Factory Service Bulletin OBDII Code U0107

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0107 Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.