Vanden Plas L6-4.2L (1982)
Emissions Maintenance Light: Service and Repair
Mechanical Speedometer
Mileage Counter Reset Button
The oxygen sensor maintenance reminder light located on the instrument panel, will come ON as a reminder for service at 30,000 mile intervals.
The mileage counter is fitted inline with the speedometer flexible drive line. It is located under the intake manifold, and can be seen clearly when
viewed from underneath the vehicle. The unit is a gear driven mechanical reduction device and is fitted with a magnetically operated reed switch.
Service is performed by replacing the oxygen sensor. After the appropriate service has been completed, insert reset key into mileage reset switch.
Turn key until ``0 0 0'' is obtained. If a factory (BLT-5007) reset key is not available, one can be made with a piece of stiff steel cut to the shape
shown in the image.
