U0124

Lost Communication With Lateral Acceleration Sensor Module

Q: Is it safe to drive with U0124?

The car still steers and brakes normally, but electronic stability and traction control are likely off. Drive gently, especially in rain, snow, or sharp corners, until it's repaired.

Q: Can I just clear U0124?

It comes back if the module still isn't communicating. Stability control stays disabled until the wiring or sensor fault is fixed.

Communication network / stability control Generic OBD-II Medium

What it means

U0124 means the vehicle has lost communication with the lateral-acceleration sensor module — the sensor that measures side-to-side (cornering) forces for the stability-control system. Without its data, electronic stability and traction control usually shut down and warning lights come on. The car still drives, steers, and brakes normally, but without those safety aids. The cause is typically a wiring, connector, power/ground, or bus fault.

Medium

Can I keep driving? Yes — normal driving and braking still work, but stability and traction control are likely disabled, so take extra care in slippery or hard-cornering conditions until fixed.

Real-world scan data

Seen in

115

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Appears alongside · share of U0124 scans

U0126in 66.1% of scans

U0123in 57.4% of scans

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

ABS, traction, and stability-control (ESC) warning lights on
Stability and traction control disabled
Possible ABS warning as well
Scan tool can't reach the lateral-acceleration sensor module

Common causes

Most likely first

Wiring or connector fault at the sensor moduleLikely
Power or ground problem to the moduleCommon
Failed lateral-acceleration (yaw/G) sensor moduleCommon
CAN bus fault shared with the stability-control systemLess often

How to diagnose & fix

Work through it in order

Scan for related ABS/stability codes and any other U-codes.
Inspect the connector and wiring at the sensor module.
Check the module's power and ground.
Verify bus communication and repair any wiring fault.
Replace the sensor module if it's confirmed faulty, then clear and re-test.

FAQ

Quick answers

Is it safe to drive with U0124?+

The car still steers and brakes normally, but electronic stability and traction control are likely off. Drive gently, especially in rain, snow, or sharp corners, until it's repaired.

Can I just clear U0124?+

It comes back if the module still isn't communicating. Stability control stays disabled until the wiring or sensor fault is fixed.

Read & clear U0124 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