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Home >> Lexus >> 2024 >> NX 250 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (P2418-U1103) >> SFI System >> DTC P2A00-26: O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold [03/2022 - ] >> Description
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DTC P2A00-26: O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold [03/2022 - ]: Description

Refer to DTC P0030-12.

Refer to DESCRIPTION [03/2022 - 03/2023] , or refer to DESCRIPTION [03/2023 - ]

HINT: 

Although the DTC titles say oxygen sensor, this DTC relate to the air fuel ratio sensor (sensor 1).

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P2A00-26 O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold The calculated value for the air fuel ratio sensor (sensor 1) response rate deterioration level is less than the threshold (2 trip detection logic).
  • Air fuel ratio sensor (sensor 1)
  • Intake system
  • Port fuel injector assembly
  • Direct fuel injector assembly
  • Fuel pressure (for low pressure)
  • Fuel pressure (for high pressure)
  • Fuel system
  • EGR valve assembly
  • ECM
Comes on DTC stored
  • SAE Code: P2A00
  • DTC for Mexico Models: Applies (Mexico models only)