Code 68: Vehicle Speed Sensor Input Fault
NOTE:
If speedometer does not operate go to INSTRUMENT PANELS
or INSTRUMENT PANELS - 3.9L & 4.2L
article in ACCESSORIES & EQUIPMENT.
Test vehicle speed sensor input. 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.