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2010 GENUINE LAND ROVER DISCOVERY 4 SUNROOF CONTROL MODULE 5H22-78502D70-AC

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♻️ GENUINE 2010 LAND ROVER DISCOVERY 4 L319 ELECTRIC SUNROOF CONTROL MODULE ECU – 5H22-78502D70-AC


Genuine used Land Rover Discovery 4 L319 electric sunroof control module / ECU, removed from a 2010 Discovery 4.


This electronic control unit forms part of the factory electric sunroof system and controls the operation of the opening / sliding roof mechanism.


Part Number: 5H22-78502D70-AC

Alternative Format: 5H2278502D70AC

OE / Cross Reference: EGW500070

Related Part Number: 5H22-78502D70-AB

Part Type: Sunroof Control Module / ECU

System: Electric Sunroof / Sliding Roof

Position: Roof / Sunroof Assembly

Donor Vehicle: 2010 Land Rover Discovery 4 L319

Manufacturer: Land Rover / OEM

Condition: Genuine Used


Compatibility


Confirmed applications include:


• Land Rover Discovery 4 L319 – 2009–2016

• Land Rover LR4 L319 – 2010–2016 in applicable markets

• 2.7 TDV6 models equipped with the electric sunroof

• 3.0 TDV6 / SDV6 models equipped with the electric sunroof

• Petrol models using the same factory roof module


The exact 5H22-78502D70-AC number is specifically catalogued as a Discovery 4 L319 sunroof control unit. (GlobalParts)


A 2013 Discovery 4 L319 3.0 donor is also documented with the exact 5H22-78502D70-AC module. (eBay UK)


Additional Applications


This module family is also documented on:


• Land Rover Discovery 3 L319 – 2004–2009

• Discovery 3 vehicles equipped with the corresponding electric sunroof system


A specialist Land Rover breaker lists 5H22-78502D70-AC for both 2004–2009 Discovery 3 and 2009–2016 Discovery 4. (Gentlemen Of Salvage)


Related earlier 5H22-78502D70-AB modules are also documented on Discovery 3 applications. (GlobalParts)


Technical Information


The module forms part of the factory electrically operated sunroof / sliding roof system.


It works with components including:


• Electric sunroof motor

• Sunroof control switch

• Roof mechanism

• Position/control electronics

• Vehicle wiring loom

• Associated body electrical system


The module processes the relevant roof-control commands and helps manage the movement of the electric sunroof.


Sunroof System Information


The Discovery 4 electric roof system uses separate mechanical and electrical components.


A sunroof operating fault can therefore originate from:


• Sunroof control module

• Sunroof motor

• Roof switch

• Electrical wiring

• Connectors

• Mechanical roof tracks

• Roof mechanism alignment

• Loss of roof position initialisation


The control module should not automatically be assumed faulty simply because the roof does not move.


Common Symptoms / Reasons for Replacement


• Electric sunroof not operating

• Roof operates intermittently

• Sunroof stops during opening or closing

• Roof control commands not responding

• Module communication fault

• Internal ECU failure

• Water or moisture damage

• Electrical connector damage

• Original module damaged during roof repairs

• Replacement required following diagnostic testing


Important Diagnostic Information


Before replacing the module, check:


• Sunroof fuse and electrical supply

• Roof control switch

• Module connectors

• Wiring continuity

• Sunroof motor

• Roof tracks and mechanism

• Relevant diagnostic fault codes


A mechanically jammed or stiff roof can produce symptoms similar to an electrical control fault.


The roof mechanism should move freely before another control module or motor is installed.


Installation


The module is fitted as part of the electric sunroof assembly.


During replacement:


• Disconnect connectors carefully

• Inspect terminals for corrosion

• Compare the complete module number

• Secure the module in its original position

• Check wiring routing

• Inspect for signs of previous water ingress

• Ensure the roof mechanism is mechanically sound


Programming / Initialisation


A like-for-like replacement with the same 5H22-78502D70-AC specification may not require conventional ECU programming.


However, the sunroof position / one-touch operation may require initialisation or recalibration following electrical disconnection, module replacement or loss of stored roof position.


If the roof does not operate normally after installation, the appropriate Land Rover sunroof initialisation procedure and diagnostic checks should be carried out.


Important Compatibility Note


⚠️ Please match the complete part number before purchasing.


Check:


• 5H22-78502D70-AC

• 5H2278502D70AC

• EGW500070 where applicable

• Electrical connectors

• Module housing

• Mounting arrangement

• Electric sunroof specification

• Listing photographs


Related modules including 5H22-78502D70-AB are also documented, but the safest replacement is to match the complete engineering number on your original module.


Do not purchase solely by vehicle model and year.


Condition


Genuine used Land Rover electronic module.


May show normal signs of previous use, removal and storage, including light marks or cosmetic wear to the housing.


Please inspect all listing photographs carefully for the exact connector configuration, part number and overall condition.


♻️ Genuine 2010 Land Rover Discovery 4 L319 electric sunroof control module ECU 5H22-78502D70-AC / EGW500070 – ideal replacement for a diagnosed faulty original roof control unit.

Brand: Land Rover

Type: Module

Terminal Type: Bullet

Manufacturer Part Number: 5H22-78502D70-AC

Classic Part: No

Features: Easy Installation

Terminal Quantity: 2

Universal Fitment: No

Placement on Vehicle: Roof

Reference OE/OEM Number: LOC D7-2

Performance Part: No

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2010 GENUINE LAND ROVER DISCOVERY 4 SUNROOF CONTROL MODULE 5H22-78502D70-AC

£30.00

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