DTC Description
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. | CONSULT screen terms (Trouble diagnosis content) |
DTC detecting condition | |
|---|---|---|---|
| P2252 | O2 sensor bank 1 sensor 1 [O2 sensor negative current control circuit low bank 1 sensor 1] |
A | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in a range other than approx. 2.2 V. |
| B | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 2.2 V. | ||
POSSIBLE CAUSE
A
- Harness or connectors (The A/F sensor 1 circuit is open or shorted.)
- A/F sensor 1
B
- Harness or connectors (The A/F sensor 1 circuit is open or shorted.)
- A/F sensor 1
FAIL-SAFE
Not applicable