P0159: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P0159 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

2 complaints filed with NHTSA mention P0159, 2 of them since 2015, across 1 different models. The component owners most often filed it under: engine.

Manufacturer service bulletins that name P0159

6 technical service bulletins and manufacturer communications filed with NHTSA mention P0159, from 3 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • LAND ROVER RANGE ROVER (2016), bulletin 10105881: "ISSUE: THE CUSTOMER MAY OBSERVE A MIL IN THE INSTRUMENT CLUSTER RELATING TO THE ENGINE SYSTEM (CHECK ENGINE LIGHT) AND ONE OR MORE CODES STORED IN THE PCM RELATING TO HEATED OXYGEN SENSOR (HO2S) IN THE EXHAUST SYSTEM. T…
  • NISSAN ARMADA (2013, 2014, 2015), bulletin 10192593: IF YOU CONFIRM One or more of the following DTCs are present: * P0139 - HO2S2 (B1) (Heated oxygen sensor 2 circuit slow response) * P0159 - HO2S2 (B2) (Heated oxygen sensor 2 circuit slow response) NOTE: Do not replace O…
  • INFINITI QX60 (2015), bulletin 10192583: IF YOU CONFIRM: The MIL is ON and any of the following DTCs are stored in the ECM: - P0037, P0038, P0057, P0058, P0139, P0159, P0141, P0161, P0137, P0157, P0138, P0158 ACTION: 1. Refer to step 6 in the SERVICE PROCEDURE …
  • NISSAN ALTIMA (2015), bulletin 10192579: IF YOU CONFIRM: Any of the following DTCs are stored in the ECM: - P0037, P0038, P0057, P0058, P0139, P0159, P0141, P0161, P0137, P0157, P0138, P0158 ACTION: Refer to the FLOW CHART in this bulletin. See this bulletin fo…
  • INFINITI EX35 (2013, 2012, 2014), bulletin 10192323: IF YOU CONFIRM: The MIL is ON and one or both of the following DTCs are found stored in the ECM: - P0139 (heated oxygen sensor 2 (B1) circuit slow response) - P0159 (heated oxygen sensor 2 (B2) circuit slow response) ACT…
  • NISSAN 370Z (2012, 2013, 2014), bulletin 10192322: IF YOU CONFIRM: The MIL is ON and one or both of the following DTCs are found stored in the ECM: - P0139 (heated oxygen sensor 2 (B1) circuit slow response) - P0159 (heated oxygen sensor 2 (B2) circuit slow response) ACT…

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.