U0107

Lost Communication With Throttle Actuator A Control Module

Q: Is it safe to drive with U0107?

No. Without the throttle control module the engine usually drops into a low-power fail-safe mode, and throttle response can be unpredictable, so drive as little as possible until it is repaired.

Q: Can I just clear U0107?

It returns as soon as the module drops offline again. The wiring, power, ground, or module fault has to be found and fixed.

Throttle control network Generic OBD-II High

What it means

U0107 means the ECM has lost communication with the throttle actuator control module, which manages the electronic (drive-by-wire) throttle. Without it, the engine typically falls into a reduced-power fail-safe mode, and on some vehicles it may not start. It usually points to a wiring or connector fault, a power/ground problem, a bus fault, or a failed module.

High

Can I keep driving? Not really — losing the throttle control module usually forces the engine into limp/fail-safe mode with sharply reduced power, and some vehicles won't start, so fix it before driving.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Reduced engine power or limp mode
Check-engine light, sometimes a throttle warning light
Poor or no throttle response, hesitation, or stalling
Hard start or no-start on some vehicles

Common causes

Most likely first

Wiring or connector fault between the ECM and the throttle actuator control moduleLikely
Poor power or ground to the throttle control moduleCommon
Failed throttle actuator control moduleCommon
CAN bus fault interrupting the moduleLess often

How to diagnose & fix

Work through it in order

Scan for companion U-codes and any throttle/pedal (P2100-series) codes.
Inspect the module connector, wiring, power, and ground.
Check bus continuity between the ECM and the throttle control module.
Repair the wiring or replace the module if it stays unresponsive.
Clear codes, perform a throttle relearn if required, and retest.

FAQ

Quick answers

Is it safe to drive with U0107?+

No. Without the throttle control module the engine usually drops into a low-power fail-safe mode, and throttle response can be unpredictable, so drive as little as possible until it is repaired.

Can I just clear U0107?+

It returns as soon as the module drops offline again. The wiring, power, ground, or module fault has to be found and fixed.

Read & clear U0107 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX