U0107 CADILLAC 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)
Tech description
There is a factory service bulletin for the U0107 code on following Cadillac vehicles:

2006 Cadillac Escalade
2007 Cadillac Escalade

Factory Service Bulletin Cadillac Escalade OBDII Code U0107

When is the obd code mean?
The U0107 code is set when the Powertrain Control Module (PCM) detects a loss of data or invalid data from the Throttle Actuator Control (TAC)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– No throttle response
U0107 CADILLAC OBD Code 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 nau other serial data circuit on the vehicle. Accurate transmitting and reveicing of serial data requires no only agood cricuit integrity, but also adequate system voltage. This diagnostic test monitors de accuaracy od the serial data trasmitted between the TAC module and the PCM.

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