U0107 — Lost Communication With Throttle Actuator Control Module
OBD2 code U0107 flags a problem with the throttle and intake air metering (lost communication with throttle actuator control module). Short, gentle driving to a shop is usually possible. Common culprits: wiring or connector faults in the throttle circuit, failed electronic throttle motor, faulty throttle position sensor or pedal sensor.
vehicle network
Is it safe to drive?
Drive with caution Drive with caution. Many throttle faults put the car into limp mode with limited power — enough to reach a shop, not for highway trips. If the engine stalls or the pedal stops responding, do not drive.
How to diagnose with an OBD scanner
- Read the code and freeze frame Connect an OBD2 scanner, confirm U0107 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many U0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
- Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the throttle and intake air metering for damage, corrosion, chafing or poor contact.
- Subsystem check Inspect and clean the throttle body; check that the plate moves freely.
- Subsystem check Watch throttle position and MAF/MAP readings in live data while pressing the pedal — values should change smoothly.
- Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm U0107 does not return.
Approximate repair cost
Repair cost depends on which component actually failed. Typical scenarios for U0107 (parts and labor, USD, independent shop rates): Clean the throttle body: $80–$200; Replace the throttle body assembly: $250–$700; Replace the MAF or MAP sensor: $150–$400. Overall, fixing U0107 usually costs between $80 and $700. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Common questions
What is the most common cause of U0107?
The most common causes are: wiring or connector faults in the throttle circuit, failed electronic throttle motor, faulty throttle position sensor or pedal sensor.
How do I diagnose U0107 myself?
Start with a scan: confirm U0107, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the throttle and intake air metering, and verify the suspect component against live data before buying parts.
Is it safe to drive with U0107?
Drive with caution. Many throttle faults put the car into limp mode with limited power — enough to reach a shop, not for highway trips. If the engine stalls or the pedal stops responding, do not drive.
How much does it cost to fix U0107?
Clean the throttle body — $80–$200; Replace the throttle body assembly — $250–$700; Replace the MAF or MAP sensor — $150–$400. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.
What are the symptoms of U0107?
Drivers most often notice: Check Engine Light on, stalling when coming to a stop, unstable or high idle, limp-home mode with reduced power.
What does U0107 mean?
U0107 is logged by the onboard diagnostics when the throttle and intake air metering does not behave as expected. The official definition is “Lost Communication With Throttle Actuator Control Module”. This is a vehicle network category code.
This code does not appear from a single bad reading: the module must see the fault condition repeat under defined operating conditions before it turns on the warning light. The freeze frame captured with U0107 — engine load, rpm, temperature, speed — tells you exactly when the problem occurs, so reproduce those conditions when testing.
What causes U0107?
- faulty throttle position sensor or pedal sensor
- intake air leaks after the MAF sensor
- wiring or connector faults in the throttle circuit
- contaminated or failed MAF/MAP sensor
Common symptoms of U0107
- Check Engine Light on
- stalling when coming to a stop
- unstable or high idle
- limp-home mode with reduced power
- poor throttle response
How to diagnose U0107
- Connect an OBD2 scanner, confirm U0107 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many U0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
- Visually inspect the wiring harness and connectors related to the throttle and intake air metering for damage, corrosion, chafing or poor contact.
- Inspect and clean the throttle body; check that the plate moves freely.
- Watch throttle position and MAF/MAP readings in live data while pressing the pedal — values should change smoothly.
- Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm U0107 does not return.
How to fix U0107
Start with the cheapest and most common causes before replacing expensive parts:
- Clean the throttle body — $80–$200
- Replace the throttle body assembly — $250–$700
- Replace the MAF or MAP sensor — $150–$400
How much does it cost to fix U0107?
Repair cost depends on which component actually failed. Typical scenarios for U0107 (parts and labor, USD, independent shop rates):
- Clean the throttle body: $80–$200
- Replace the throttle body assembly: $250–$700
- Replace the MAF or MAP sensor: $150–$400
Overall, fixing U0107 usually costs between $80 and $700. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Can you drive with U0107?
Drive with caution. Many throttle faults put the car into limp mode with limited power — enough to reach a shop, not for highway trips. If the engine stalls or the pedal stops responding, do not drive.