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Home >> Land Rover >> 1995 >> Defender 90 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Performance Self-Diagnostics >> Diagnostic Tests >> Code 68: Vehicle Speed Sensor Input Fault >> Diagnostic Procedure
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Diagnostic Procedure

NOTE: If speedometer does not operate, see appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.

Test vehicle speed sensor signal. Perform Test "N". See Fig 1 . After completing the tests, retest the vehicle to ensure the faults have been rectified. If faults still persist, recheck using Lucas Diagnostic Equipment or Test Book.

Fig 1: Vehicle Speed Sensor Input Fault Test "N"
G00136569Courtesy of LAND ROVER NORTH AMERICA, INC.