| DESCRIPTION |
Open circuit between A/F sensor terminal B and PCM terminal 1AG |
| DETECTION CONDITION |
Determination conditions |
- After A/F sensor activation, a condition in which PCM terminal 1AB voltage is within the specified range continues for 5 s or more.
|
| Preconditions |
- Battery voltage: 11-18 V
- The following DTC is not detected:
- Internal PCM malfunction: P064D:00
|
| Drive cycle |
|
| Self test type |
- CMDTC self test, KOER self test
|
| Sensor used |
|
| FAIL-SAFE FUNCTION |
- Fixes duty value of A/F sensor heater
- Stops fuel feedback control of A/F sensor
|
| VEHICLE STATUS WHEN DTCs ARE OUTPUT |
- Illuminates check engine light.
|
| POSSIBLE CAUSE |
- A/F sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- Open circuit in wiring harness between A/F sensor terminal B and PCM terminal 1AG
- A/F sensor malfunction
- PCM malfunction
|