Neutral Safety Switch: Testing and Inspection

Inhibitor Switch:

OPERATION

1. Verify that starter only operates with gear selector lever in "P" or "N."
2. Verify that back-up lights illuminate with gear selector in "R" and ignition switch "ON."
3. If not as specified, test and/or adjust switch as needed.

CONTINUITY CHECK

Inhibitor Switch Testing:

1. Jack up vehicle and support with safety stands.
2. Disconnect control linkage from transmission manual shaft.
3. Disconnect switch electrical connector and check continuity as shown on image chart.
4. If not as specified, adjust switch and recheck. Refer to ADJUSTMENT PROCEDURES. If still not correct, replace switch.
5. If correct, check or adjust selector lever and control linkage as needed.

Inhibitor switch input voltage can be checked at ECU terminal 1V with ignition "ON." In "N" or "P" range terminal voltage should be 0V. In other ranges, voltage should be approximately 12V.