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Pinpoint Test U: Unable To Remove The Key From The Ignition Lock Cylinder




Locks, Latches and Entry Systems







Pinpoint Test U: Unable To Remove The Key From The Ignition Lock Cylinder

Refer to Wiring Diagram Set 37, Shift Interlock for schematic and connector information. Diagrams By Number

Normal Operation

On floor shift equipped vehicles, the ignition switch contains a key removal inhibit solenoid. The solenoid prevents the ignition lock cylinder to be turned to lock and the key removed any time the transmission selector lever is in any position except park. The inhibit solenoid receives voltage at all times from the Smart Junction Box (SJB) fuse 26 (10A) on circuit SBB26 (YE/RD). When the transmission selector lever is in any gear except park, the selector switch closes and connects circuit GD138 (BK/WH) to circuit CDC41 (WH/BN), which supplies ground to the solenoid.

On column shift equipped vehicles, the key removal inhibit is controlled by a mechanical linkage inside the steering column. The linkage prevents the ignition lock cylinder to be turned to lock and the key removed any time the transmission selector lever is in any position except park.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Transmission selector lever
- Binding steering column components
- Ignition lock cylinder
- Ignition switch



PINPOINT TEST U: UNABLE TO REMOVE THE KEY FROM THE IGNITION LOCK CYLINDER

U1-U3: