DTC | M.U.T.-III SE screen terms (Trouble diagnosis content) | DTC detection condition | ||
P0031 | 00 | HO2S1 HTR (B1) (HO2S heater control circuit low bank 1 sensor 1) | Diagnosis condition | Engine running at idle |
Signal (terminal) | A/F sensor 1 heater signal | |||
Threshold | An excessively low voltage signal is sent to ECM through the A/F sensor 1 heater | |||
Diagnosis delay time | — |