P2110

Throttle Actuator A Control System - Forced Limited RPM

Q: Is it safe to drive with P2110?

It runs, but the ECM has capped RPM and power to protect the drivetrain. Short low-speed trips are okay; avoid highway driving until it's fixed.

Q: Can I just clear P2110?

It clears, but if a throttle fault is still present it returns almost immediately. Cleaning the throttle body first gives the best chance of it staying off.

Throttle actuator control Generic OBD-II Medium

What it means

P2110 is set when the engine control module detects a throttle actuator (drive-by-wire) fault and deliberately caps engine RPM as a fail-safe. It's a protective limp mode, not engine damage — the car keeps running, but with reduced power until the underlying throttle problem is found and fixed.

Medium

Can I keep driving? You can usually limp home, but the ECM has deliberately capped engine RPM and power — avoid highway driving and get it diagnosed before it drops further.

Real-world scan data

Seen in

151

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

Check-engine light on
Engine RPM and power capped (limp / fail-safe mode)
Sluggish or unresponsive throttle
Rough or unstable idle

Common causes

Most likely first

Carbon build-up or a dirty throttle body sticking the throttle plateLikely
Faulty throttle actuator (drive-by-wire) motorCommon
Throttle position sensor fault or wiring/connector problemCommon
Another throttle-control fault forcing the ECM into RPM-limit modeLess often
PCM/ECM fault (rare)Less often

How to diagnose & fix

Work through it in order

Scan for other throttle/pedal codes (P2100-P2135) first — P2110 is usually the ECM's response to another fault.
Clean the throttle body and throttle plate, then clear the code and retest.
Inspect the throttle actuator connector and wiring for damage or corrosion.
Test the throttle position sensor signals and the actuator motor.
If everything checks out, have the throttle body / PCM evaluated before replacing parts.

FAQ

Quick answers

Is it safe to drive with P2110?+

It runs, but the ECM has capped RPM and power to protect the drivetrain. Short low-speed trips are okay; avoid highway driving until it's fixed.

Can I just clear P2110?+

It clears, but if a throttle fault is still present it returns almost immediately. Cleaning the throttle body first gives the best chance of it staying off.

Read & clear P2110 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