Electronic Pinion Factor Warning

ELECTRONIC PINION FACTOR WARNING (IF APPLICABLE)
The pinion factor must be set when replacing the PCM.

Note: The pinion factor is a fixed number and cannot be changed or updated in some vehicle applications.

If the pinion factor is not set or incorrectly set, any speed related functions will not operate correctly i.e. speedometer, speed control, rolling door locks, other control modules will be affected that depend on speed information.