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. Remove the collector cover.
   1. Carefully pull up the rear of collector cover at two positions (A).
   2. Carefully pull up the front of collector cover at two positions (B) while moving it forward.
   Fig 1: Removing Collector Cover

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2. Disconnect the ground terminal from battery sensor. Ref. to BATTERY
   NOTE: Repair Contents.
3. Loosen the clamp (A) which connects the air intake boot.
4. Loosen the bolt (B) securing the air intake boot to the collector cover bracket.
   Fig 2: Identifying Air Intake Boot Clamps And Bolt

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5. Remove the air intake boot from the throttle body and the air cleaner case (rear), and move it to the left side wheel apron.
   CAUTION: Be careful not to allow the air intake boot to contact the air conditioner pipe.
   Fig 3: Removing Air Intake Boot (Rear)

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6. Disconnect the inhibitor harness connector.
   Fig 4: Identifying Inhibitor Harness Connector

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7. Check for continuity in inhibitor switch circuit by shifting the select lever in "P", "R", "N" and "D" respectively.
   NOTE:

   • Check that there is no continuity in the starter circuit when the select lever is in the "R" and "D" ranges.
   • When inhibitor switch is normal, check there is no poor contact in vehicle side connector and no open circuit in harness.

   Signal sent to TCM	Range	Terminal No.
   	P	4 - 3
   	R	4 - 2
   	N	4 - 1
   	D	4 - 8
   Starter circuit	P/N	12 - 11
   Back-up light circuit	R	10 - 9

   Fig 5: Inhibitor Switch Terminals

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8. Check that there is continuity at equal points when the select lever is moved 1.5° in both directions 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 6: Select Lever Continuity Range

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9. Repeat the above inspection in other gear ranges. If there is fault, adjust the inhibitor switch and select cable. Ref. to ADJUSTMENT , Inhibitor Switch. Ref. to ADJUSTMENT , Select Cable.