Inhibitor Switch: Inspection

When the driving condition or starter motor operation is improper, first check the shift linkage for improper operation. If the shift linkage is functioning properly, check the inhibitor switch.

1. Disconnect the inhibitor switch connector.
2. Check continuity in inhibitor switch circuits with the select lever moved to each position.
   NOTE:

   • Also check that there is no continuity in ignition circuit when the select lever is in the "R", "D", "3", "2" and "1" ranges.
   • If the inhibitor switch does not operate, check for poor contact of the connector on transmission side.
   STALL SPEED AND RANGE
   
   

   Signal sent to TCM	Range	Pin No.
   	P	4 - 3
   	R	4 - 2
   	N	4 - 1
   	D	4 - 8
   	3	4 - 7
   	2	4 - 6
   	1	4 - 5
   Ignition circuit	P/N	12 - 11
   Back-up light circuit	R	10 - 9

   Fig 1: Identifying Inhibitor Switch Connector

   Courtesy of SUBARU OF AMERICA, INC.
3. Check if there is continuity at equal points when the select lever is turned 1.5° to the "R" and "D" ranges from the "N" range.

   If there is continuity in only one direction or in other points, adjust the inhibitor switch. < Ref. to ADJUSTMENT , Inhibitor Switch.>

   Fig 2: Identifying Select Lever Positions

   Courtesy of SUBARU OF AMERICA, INC.
4. Repeat the above checks for the other ranges. If there are abnormalities, adjust the select cable. < Ref. to ADJUSTMENT , Select Cable.>