Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESMODULE CONFIGURATION SYSTEMDIAGNOSTIC TESTSMODULE CONFIGURATIONINSPECTION AND VERIFICATION

2009 Mercury Milan Premier, 3.0 1, AWD

Inspection and Verification

2009 Mercury Milan Premier, 3.0 1, AWDSECTION Inspection and Verification

This section provides step-by-step module configuration procedures. Carry out the programmable module installation (PMI) procedure in this article when another workshop manual section directs to carry out configuration or when DTCs from the list below are present:

DTC CHART

DTC	Description	Source	Action
B2477	Module Configuration Failure	Audio control module (ACM) Audio digital signal processing (DSP) module Driver seat module (DSM) Dual climate control seat module (DCSM) Instrument cluster (IC) Occupant classification system module (OCSM) Parking aid module (PAM) Restraints control module (RCM) Satellite digital audio receiver system (SDARS) module Smart junction box (SJB)	CARRY OUT PMI. REFER to Programmable Module Installation in this article.
B2477	Module Configuration Failure	Accessory protocol interface module (APIM)	REFER to Accessory Protocol Interface Module (APIM) Programming in this article.
B2900	VIN mismatch	4X4 control module ABS module RCM	CARRY OUT PMI. REFER to Programmable Module Installation in this article.
P0602	Powertrain Control Module Programming Error	PCM	CARRY OUT PMI. REFER to Programmable Module Installation in this article.
P0605	Internal Control Module Read Only Memory (ROM) Error	PCM	CARRY OUT PMI. REFER to Programmable Module Installation in this article.
P1635	Tire/Axle Out of Acceptable Range	4X4 control module	CARRY OUT PMI. REFER to Programmable Module Installation in this article.
P1639	Vehicle ID Block Corrupted, Not Programmed	PCM	CARRY OUT PMI. REFER to Programmable Module Installation in this article.
U0300	Internal Control Module Software Incompatibility	PCM RCM	CARRY OUT PMI. REFER to Programmable Module Installation in this article.
U2050	No Application Present	4X4 control module ABS module ACM DCSM DSM Driver door module (DDM) DSP module Heating ventilation air conditioning (HVAC) module IC OCSM PCM RCM SJB SDARS module Transmission control module (TCM)	CARRY OUT PMI. REFER to Programmable Module Installation in this article.
U2050	No Application Present	APIM	REFER to Accessory Protocol Interface Module (APIM) Programming in this article.
U2051	No Application Present	4X4 control module ACM DSP module HVAC module IC OCSM PAM PCM RCM	CARRY OUT PMI. REFER to Programmable Module Installation in this article.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.