Details On DTCs

DESCRIPTION

P013A:00

HO2S: Slow response (during transition from rich to lean)

P013B:00

HO2S: Slow response (during transition from lean to rich)

DETECTION CONDITION

Determination conditions

P013A:00

The response speed of the HO2S input signal when the air/fuel ratio is fluctuated from rich to lean is slow.

P013B:00

The response speed of the HO2S input signal when the air/fuel ratio is fluctuated from lean to rich is slow.

Preconditions

Fuel injection control: during fuel cut ⁽¹⁾ (P013A:00)
Catalytic converter estimated temperature: specified value or more
HO2S estimated temperature: specified value or more
HO2S output voltage during fuel cut: Specified value or more (P013A:00)
HO2S output voltage at fuel cut recovery:
Specification or less (P013B:00)
- The following DTCs are not detected:
  - HO2S heater: P0037:00, P0038:00
  - MAF sensor: P0102:00, P0103:00
  - ECT sensor: P0117:00, P0118:00
    - HO2S: P0137:00, P0138:00, P0140:00

Drive cycle

2

Self test type

CMDTC self test

Sensor used

HO2S

FAIL-SAFE FUNCTION

Not applicable

VEHICLE STATUS WHEN DTCs ARE OUTPUT

Illuminates check engine light.

POSSIBLE CAUSE

HO2S malfunction
- HO2S connector or terminals malfunction
- HO2S loose
- Exhaust system leakage
  - TWC damaged or malfunction
HO2S deterioration
HO2S heater malfunction
Improper operation of purge control system
- Purge solenoid valve malfunction
  - Improper connection of evaporative hose (purge solenoid valve side)
- Engine malfunction
  - Insufficient engine compression
- PCM malfunction

⁽¹⁾	Condition can be verified by displaying PIDs using M-MDS