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Powertrain

P161D

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.

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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.

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Manufacturer communications

8

Original wording in English

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SSM 54325 ↗

FORD, LINCOLN

Some 2025 Expedition/Navigator vehicles may exhibit diagnostic trouble code (DTC) P161D in the powertrain control module (PCM) when a diagnostic self-test is performed. If there are no observable customer symptoms with the vehicle, no further action is required. Replacement and/or programming of the PCM will not resolve this con…

SSM 53560 ↗

FORD, LINCOLN

Some 2025 Expedition/Navigator vehicles may exhibit diagnostic trouble code (DTC) P161D in the powertrain control module (PCM) when a diagnostic self-test is performed.

NTB22-094 ↗

NISSAN

DTC P161D STORED IN BCM IF YOU CONFIRM DTC P161D (Immobilizer) is stored in the BCM,. ï‚· If a DTC other than P161D is present, diagnose and resolve first before applying this bulletin. AND The current ECU PART NUMBER in the BCM is either 284B3-3613R or 284B3-6580R. ACTION Reprogram the BCM with the SERVICE PROCEDURE in this bul…

NTB19-008C ↗

NISSAN

NISSAN; DIAGNOSIS INFORMATION FOR DTC P161D This bulletin is no longer active. Please discard previous versions of NTB19-008.

Check vehicle applicability

15

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

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MakeModelModel year
FordEXPEDITION ↗2025
LincolnNAVIGATOR ↗2025
NissanALTIMA ↗2019
NissanALTIMA ↗2018
NissanKICKS ↗2019
NissanKICKS ↗2018
NissanROGUE ↗2021
NissanROGUE ↗2019

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.