Back to 2021 Infiniti QX50
Help
2021 INFINITI QX50
2.0L I4 VC-Turbo•AWD•AUTOMATIC•gas•turbo
2 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor961Torque8435Fluid16DTC2462Battery2Maintenance0Recalls2
C0025moderate severityChassis

LF Wheel Speed Sensor Circuit Intermittent

on 2021 Infiniti QX50 2.0L I4 VC-Turbo · AWD

What this code means

The left front wheel speed sensor signal drops out intermittently during driving.

Symptoms

  • ABS light on intermittently
  • Sporadic traction control activation
  • ABS works sometimes but not always

Common causes

  • Damaged wiring at flex point near suspension
  • Corroded connector pins
  • Intermittent sensor internal fault
  • Loose sensor mounting

Diagnostic steps

  1. Wiggle-test wiring harness while monitoring sensor signal
  2. Inspect connector for corrosion or backed-out pins
  3. Check sensor mounting bolt torque
  4. Road test while monitoring live data
  5. Inspect wiring routing near suspension components

Repair notes

Repair wiring at chafe point or replace connector. Re-secure sensor.

🔌 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 2021 Infiniti QX50 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 Infiniti QX50 — $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 →