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Home >> Lincoln >> 2005 >> Aviator AWD V8-4.6L DOHC VIN H >> Repair and Diagnosis >> Transmission and Drivetrain >> Transfer Case >> Testing and Inspection >> Pinpoint Tests >> Test E: AWD System Functional Test
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Test E: AWD System Functional Test

Pinpoint Test E: AWD System Functional Test

Test E1-E6:




Test E7-E15:





NOTE: AWD Locked mode is not intended for driving on hard/dry surfaces.

Normal Operation
When the vehicle is operating in AWD locked, all 4 wheels rotate at the same speed. The amount of traction the vehicle can achieve is dependent on the amount of traction each tire can establish with the road surface. In order for the AWD system to operate correctly, each wheel/tire assembly must have matching sizes and the front and rear axle ratios must match.

Possible Causes
^ AWD indicator
^ 4WD control module
^ Transfer case and related components
^ Wheel/tire assemblies

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