DTC Detection Logic
To judge malfunctions, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal fluctuates according to fuel feedback control.
| DTC No. | Trouble diagnosis name (Trouble diagnosis content) | DTC detecting condition | Possible Cause | |
|---|---|---|---|---|
| P0130 | A/F SENSOR1 (B1) [Air fuel ratio (A/F) sensor 1 (bank 1) circuit] | A) | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in a range other than approx. 1.5 V. |
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| B) | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 1.5 V. | |||
| P0150 | A/F SENSOR1 (B2) [Air fuel ratio (A/F) sensor 1 (bank 2) circuit] | A) | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in a range other than approx.1.5 V. | |
| B) | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 1.5 V. | |||