Lock System Does Not Unlock

Step	Action	Yes	No
DEFINITION: The lock system does not allow the key to rotate out of the OFF position.
1	Did you review the Steering Wheel and Column System Description?	Go to Step 2	Go to Steering Wheel and Column Description and Operation
2	Verify that the lock system does not unlock. Does the lock system operate normally?	System OK	Go to Step 3
3	Inspect for an incorrect, worn, or damaged key. Is the key incorrect, worn, or damaged?	Go to Step 8	Go to Step 4
4	Inspect for a faulty lock cylinder. Is the lock cylinder damaged?	Go to Step 9	Go to Step 5
5	Inspect the automatic transmission shift lock control adjustment. Is the automatic transmission shift lock control adjusted incorrectly?	Go to Step 10	Go to Step 6
6	Inspect the ignition lock cylinder case assembly for damage. Is the ignition lock cylinder case assembly damaged?	Go to Step 11	Go to Step 7
7	Inspect the ignition switch assembly for damage. Is the ignition switch assembly damaged?	Go to Step 12	Go to Step 3
8	Replace the key. Refer to Key and Lock Cylinder Coding in General Information. Did you complete the repair?	Go to Step 13	-
9	Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement (Cylinder Rotates) or Ignition Lock Cylinder Replacement (Unable to Rotate Cylinder) . Did you complete the repair?	Go to Step 13	-
10	Adjust the automatic transmission shift lock control. Refer to Automatic Transmission Shift Lock Actuator Replacement in Shift Lock Control. Did you complete the repair?	Go to Step 13	-
11	Tighten the ignition lock cylinder case assembly. Refer to Fastener Tightening Specifications . Did you complete the repair?	Go to Step 13	-
12	Replace the ignition switch. Refer to Ignition Switch Replacement . Did you complete the repair?	Go to Step 13	-
13	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3