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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 463 (Engine Control System (SFI) - Diagnostics) >> DTC P0133: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1) >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0130 .

DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
P0133 After engine has been warmed up, if response time that heated oxygen sensor's output voltage reaches from RICH to LEAN. or from LEAN to RICH, is 0.6 second or more during idling. (2 trip detection logic)
  • Open or short in heated oxygen sensor (bank 1 sensor 1) circuit
  • Heated oxygen sensor (bank 1 sensor 1)
  • Heated oxygen sensor heater (bank 1 sensor 1)
  • EFI relay
  • Air induction system
  • Fuel pressure
  • Injector
  • ECM
If response time of heated oxygen sensor's output voltage in one RICH-LEAN cycle is 6 seconds or more during idling. (2 trip detection logic)

HINT:

Sensor 1 refers to the sensor closest to the engine assembly.