FixVault

DTC Detection Logic

To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately high.

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P0132 A/F SENSOR1 (B1) [Air fuel ratio (A/F) sensor 1 circuit high voltage] The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 5 V.
  • Harness or connectors (A/F sensor 1 circuit is open or shorted.)
  • A/F sensor 1