Inspection And Verification

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle.

NOTE:

If the control module or a component is at fault and the vehicle remains under manufacturer warranty, refer to the warranty policy and procedures manual, or determine if any prior approval program is in operation, prior to the installation of a new module/component.
When performing voltage or resistance tests, always use a digital multimeter that has the resolution ability to view 3 decimal places. For example, on the 2 volts range can measure 1 mV or 2 kΩ range can measure 1 Ω. When testing resistance always take the resistance of the digital multimeter leads into account.
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
The window lift mechanism motor cannot be removed from the window lift mechanism assembly, if an issue with the window lift mechanism motor is diagnosed, replacement of the complete window lift mechanism assembly including motor will be required.

Verify the customer concern
Check the JLR claims submission system for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific customer complaint and complete the recommendations required.

Visually inspect the moving glass system components for obvious signs of mechanical/electrical damage and system integrity.

VISUAL INSPECTION - PRINCIPAL MOVING GLASS SYSTEM COMPONENTS

MECHANICAL	ELECTRICAL
Moving Glass (Window) Glass Window Lift Mechanism Guide rail(s) Slider(s) Motor Cables Pulleys Cable drum Lower brackets Window lift mechanism cable clip Window lift mechanism fasteners Sunblind mechanism Door closing panel Glass seal channels Upper frame finisher Glass Seals Glass run seals Inner waist seal Outer waist sea/finisher	Supply fuses Driver Door Switchpack Window switch Child lock switch Non-Driver Door Switchpack Window switch Door module Wiring harnesses and connectors

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
If the cause is not visually evident, verify the symptom and refer to the symptom chart, alternatively check for diagnostic trouble codes (Diagnostic Trouble Codes (DTC) s) and refer to the Initialization DTC Index.