Dakota 2WD L4-153 2.5L VIN K FI (1989)
Emissions Maintenance Light: Description and Operation
This system is designed to act as a reminder that scheduled vehicle emissions maintenance should be performed. It is not intended to indicate a warning
or that a state of emergency exists which must be corrected to insure safe vehicle operation.
The components covered by the system include the EGR system, PCV valve, oxygen sensor, delay valves, vacuum controlled orifice, fuel tank vapor
valve, and bi-level purge valves.
The maintenance required system is based on a time measuring module which uses ignition-on time to calculate maintenance intervals. When
pre-determined time intervals have elapsed, the "MAINT REQD" lamp in the instrument cluster will illuminate. The lamp will remain lit until the
module is reset.