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Home >> Toyota >> 2018 >> Prius Two >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (8 Of 8) & Circuit Tests >> SFI System >> DTC P2A00-26: O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold [07/2020 - ] >> Description
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DTC P2A00-26: O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold [07/2020 - ]: Description

Refer to DTC P2195-19.

Refer to DESCRIPTION

HINT: 

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 response rate deterioration level is less than the threshold (2 trip detection logic).
  • Air fuel ratio sensor (sensor 1)
  • Intake system
  • Fuel injector assembly
  • Exhaust gas leak
  • Fuel pump
  • Fuel line
  • EGR valve assembly
  • ECM
Comes on DTC stored
  • SAE Code: P2A00
  • DTC for Mexico Models: Applies (Mexico models only)