P0136 · blink 22 – Rear Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
- System
- Engine control (EFI)
- Dashboard light
- Check engine light (MIL)
- Check-engine blink code
- 22
- Applies to
- 1KR-FE: M300 (Sirion export = JDM Boon M300S/M301S(4WD? see gaps) & Passo KGC10/KGC15). JDM-spec ECU not separately documented | K3-VE: M301 (Sirion 1.3 = JDM Boon M310S? / Passo QNC10)
- Description
- Rear Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
- Detection / symptoms
- Detection:
- Possible causes
- Trouble area: 1.Open wire or short circuit in the rear oxygen sensor circuit 2.Rear oxygen sensor 3.EFI ECU
- What to check
- Checking points: NOTE • When this code is outputted concurrently with another code, carry out the check for that code first. 1.Is the signal from the rear oxygen sensor inputted to the EFI ECU? 2.Is the harness between the rear oxygen sensor and the EFI ECU normal? 3.Is the output of the rear oxygen sensor normal? C; Unit check B8-221: rear O2 heater OXH2-+B 13.0 ohm (+2.5/-1.3) @20C
- Confidence
- high (factory manual, export spec)
From the factory service material. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights