Back to 2017 Lexus CT 200h
Help

2017 LEXUS CT 200H

1.8L I4 Hybrid•FWD•AUTOMATIC•hybrid
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor607Torque4694Fluid6DTC923Battery0Maintenance0Recalls0
P1130moderate severityPowertrain

Air/Fuel Sensor Circuit Range Bank 1 Sensor 1

on 2017 Lexus CT 200h 1.8L I4 Hybrid · FWD

What this code means

The A/F ratio sensor on Bank 1 Sensor 1 is not operating within expected range.

Symptoms

  • CEL
  • Poor fuel economy
  • Rough idle
  • Hesitation

Common causes

  • Failing A/F sensor
  • Exhaust leak
  • Contaminated sensor
  • Wiring issue

Diagnostic steps

  1. Test sensor output
  2. Check for exhaust leaks
  3. Inspect wiring
  4. Monitor fuel trims

Repair notes

Replace A/F ratio sensor.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 2017 Lexus CT 200h 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 Lexus CT 200h — $99 →
Building an app?
Free API access to all this data — 50 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 →