Back to 2020 Tesla Model 3
Help
2020 TESLA MODEL 3
Long Range Dual Motor AWD•AWD•AUTOMATIC•ev
20 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor322Torque3852Fluid5DTC726Battery1Maintenance0Recalls20
C0431moderate severityChassis

Lane Keeping Assist Steering Intervention Fault

on 2020 Tesla Model 3 Long Range Dual Motor AWD · AWD

What this code means

The lane keeping assist system cannot apply corrective steering through the EPS system.

Symptoms

  • LKA disabled
  • Lane keep warning light
  • System available in warning mode only

Common causes

  • EPS fault preventing LKA torque application
  • Steering torque sensor error
  • LKA module communication fault
  • Steering angle sensor not calibrated

Diagnostic steps

  1. Check for EPS trouble codes
  2. Verify steering angle sensor calibration
  3. Test EPS torque application capability
  4. Check CAN communication between LKA and EPS modules
  5. Inspect steering system for mechanical issues

Repair notes

Resolve EPS faults first. LKA requires a fully functional EPS system to apply corrective steering.

🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITE
Shop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other Chassis codes on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2020 Tesla Model 3 repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Tesla Model 3 — $99 →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →