Diagnostic Routine H

Diagnostic Routine H

Diagnostic Overview

The Ignition Key Can Be Turned to the OFF Position When the Selector Lever is Not in PARK

Refer to Wiring Diagram Set 37 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

The key removal inhibit solenoid (part of the ignition switch) receives battery voltage from BCM (Body Control Module) fuse 28 (15A). When the selector lever is moved out of the PARK position, the park range switch (part of the selector lever) closes, providing a ground circuit to the key removal inhibit solenoid. The key removal inhibit solenoid activates and prevents the ignition lock cylinder from being turned to the OFF position and the key from being removed.

Pinpoint Test

1. CHECK THE KEY INHIBIT SOLENOID GROUND CIRCUIT FOR AN OPEN

1. Disconnect: Ignition Switch.

2. Select DRIVE.

3. Measure:





Is the resistance less than 3 ohms?








2. CHECK THE KEY INHIBIT SOLENOID CIRCUIT FOR AN OPEN

1. Disconnect: Brake Shift Interlock.

2. Measure:





Is the resistance less than 3 ohms?








3. CHECK THE BRAKE SHIFT INTERLOCK GROUND CIRCUIT FOR AN OPEN

1. Measure:





Is the resistance less than 3 ohms?