RAM 3500 Truck 4WD L6-5.9L DSL Turbo VIN C (2002)
Neutral Safety Switch: Testing and Inspection
46RE
46RE - Automatic Transmission
PARK/NEUTRAL POSITION SWITCH
The center terminal of the park/neutral position switch is the starter-circuit terminal. It provides the ground for the starter solenoid circuit through the
selector lever in PARK and NEUTRAL positions only. The outer terminals on the switch are for the backup lamp circuit.
SWITCH TEST
To test the switch, remove the wiring connector. Test for continuity between the center terminal and the transmission case. Continuity should exist only
when the transmission is in PARK or NEUTRAL.
Shift the transmission into REVERSE and test continuity at the switch outer terminals. Continuity should exist only when the transmission is in
REVERSE. Continuity should not exist between the outer terminals and the case.
Check gearshift linkage adjustment before replacing a switch that tests faulty.
