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P161D · Manufacturer communications

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

P161D ← What does this code mean?

8 Results

SSM 54325 ↗

FORD, LINCOLN · 2025-10-24

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 condition. If there is an observable symptom, follow normal Workshop Manual diagnostics.

SSM 53560 ↗

FORD, LINCOLN · 2025-04-01

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 · 2022-10-26

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 bulletin.

NTB19-008C ↗

NISSAN · 2022-01-14

NISSAN; DIAGNOSIS INFORMATION FOR DTC P161D This bulletin is no longer active.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

NTB19-008b ↗

NISSAN · 2021-02-09

NISSAN; DIAGNOSIS INFORMATION FOR DTC P161D This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

NTB20-084 ↗

NISSAN · 2020-11-30

INTELLIGENT KEY UNIT DTC P161D STORED IN THE ECM SERVICE INFORMATION DTC P161D (IMMOBILIZER) will not cause: ï‚· The MIL to turn ON. ï‚· The Remote Engine Start to become inoperative. ï‚· The “No Key Detected” message to appear. ï‚· An impact to any of the vehicle’s functions or performance. If other DTCs are stored with P161D, perform the diagnosis and repair procedures, outlined in the ESM, for the other DTCs first. ï‚· After the other DTCs have been resolved and P161D does not clear, proceed with the diagnosis and repair, outlined in the ESM, for DTC P161D.

NTB19-008a ↗

NISSAN · 2019-04-26

NISSAN; DIAGNOSIS INFORMATION FOR DTC P161D This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

NTB19-008 ↗

NISSAN · 2019-01-29

NISSAN; DIAGNOSIS INFORMATION FOR DTC P161D SERVICE INFORMATION When key registration is unsuccessful after BCM replacement, P161D (Immobilizer) will set when the ignition is turned on. Possible causes - Improper key registration - Defective BCM (Vehicles with Intelligent Key only) - EPS control unit (Vehicles with mechanical key only) - Intelligent Key unit (Vehicles with mechanical key only) Trouble Diagnosis NOTE: If DTC B2196-52 is stored with P161D, perform the diagnosis procedure for DTC B2196-52 first. - Before replacing the BCM, confirm that the keys were programmed correctly by ensuring the vehicle will start and that the lock/unlock buttons function normally. - If any keys do not function normally, re-register all of the keys. - After re-registering all of the keys, reconfirm…