Skip to content

Powertrain

P0161

Code meaning and manufacturer information

OBD-II / DTC

Reference meaning

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

Narrow by vehicle

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

Scan worksheet →

Manufacturer communications

21

Original wording in English

View all ↗

TSB 21-2090 ↗

FORD

Some 2020 F-Super Duty vehicles equipped with a 6.2L or 7.3L engine, 10R140 transmission, and built on or before 05-Jun-2020 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0132, P0135, P0138, P0141, P0152, P0155, P0158 and/or P0161 stored in the powertrain control module (PCM). …

TSB 20-2380 ↗

FORD

Some 2020 F-Super Duty vehicles equipped with the 6.2L or 7.3L engine built on or before 05-Jun-2020 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0132, P0135, P0138, P0141, P0152, P0155, P0158 and/or P0161 stored in the powertrain control module (PCM). This may be due to water…

JAGUAR

SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED. UPON DIAGNOSIS, THE TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODES (DTC) RELEVANT TO THE MID-CATALYST AND POST-CATALYST HEATED OXYGEN SENSORS (HO2S) -- P0036, P0037, P0038, P0042, P0043, P0044, P0054, P0055, P0056, P0057, P0058, P0060, P0061, P0062, P0063, …

SSM72477 ↗

JAGUAR

"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. THE CODE WILL REFER TO A FAULT WITH THE PRE, OR MID, OR POST CATALYST HEATED OXYGEN SENSOR: P0036, P0037, P0038…

Check vehicle applicability

42

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

View all ↗

MakeModelModel year
ChevroletSILVERADO ↗2004
ChevroletSUBURBAN ↗2004
ChevroletTAHOE ↗2004
Chrysler300M ↗2002
ChryslerCONCORDE ↗2002
DodgeINTREPID ↗2002
FordEXPEDITION ↗2012
FordEXPLORER ↗1999

Code meaning and manufacturer information

Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.

O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)

Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.