LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2025 >> RX 350h Premium >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (P2A00-U1154) & Circuit Tests (1 Of 2) >> SFI System >> DTC P2A00-26: O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold [10/2022 - ] >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P2A00-26: O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold [10/2022 - ]: Description

Refer to DTC P0030-12.

Refer to DESCRIPTION , or refer to DTC P0030-12: HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P0030-13: HO2S Heater Control Bank 1 Sensor 1 Circuit Open; DTC P101A-9E: A/F Sensor Heater Performance Bank 1 Sensor 1 Stuck On [08/2023 - ]

DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from Priority 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 Engine B
  • SAE Code: P2A00
  • DTC for Mexico Models: Applies (Mexico models only)
scientia non olet · About LEMON Manuals