Testing and Inspection of Barometric Pressure Switch for Ranger 2WD L4-122 20L SOHC (1984)
Barometric Pressure Switch: Testing and Inspection
Component Testing
Fig. 42 Ignition barometric pressure switch resistance chart. 1984
1.
Disconnect switch from ignition module.
2.
Connect suitable ohmmeter across switch terminals and compare resistance measured to values in chart.
3.
Replace switch if resistance is not within specifications.