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Lock System Does Not Lock
Step
Action
Yes
No
DEFINITION: The lock system will not allow the key to be turned to the OFF lock position.
1
Did you review the Steering Wheel and Column - Tilt Description and Operation and perform the necessary inspections?
Go to Step 2
Go to Symptoms - Steering Wheel and Column - Tilt
2
Verify that the lock system does not lock.
Does the lock system operate normally?
System OK
NO - Go to Step 3
3
Inspect for a faulty lock cylinder or release button.
Is the lock cylinder or release button damaged?
Go to Step 6
Go to Step 4
4
Inspect the shift linkage adjustment.
Is the shift linkage adjusted incorrectly?
Go to Step 7
Go to Step 5
5
Inspect the ignition switch for damage.
Is the ignition switch damaged?
Go to Step 8
Go to Step 6
6
Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement - On Vehicle .
Did you complete the repair?
Go to Step 10
--
7
Adjust the shift linkage.
Did you complete the repair?
Go to Step 10
--
8
Replace the ignition switch. Refer to Ignition Switch Replacement - On Vehicle .
Did you complete the repair?
Go to Step 10
--
10
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 3
have the battery condition checked for holding charge , check under hood fuse box for the large fuse 40-100 amp depending on vehicle , keep me posted if you wish
sounds like starter solenoid is malfunctioning replace starter or solenoid or just bad wire connections if car has strap type terminals replace with lead connectors for better connection
Locate your starter and with the vehicle in park have an assistant hold the key in the crank position while with a test light you check for power at the posts on the starter solenoid. One post shoul have power from the battery, the other from the ignition switch and the other should supply power to the starter motor. Make sure your battery is in good shape and fully charged. If all you get is a click from the solenoid then it's likely that you need a starter. If no power fom battery check battery and positive cable/connection for integrity and tightness. The small post is power from the ignition switch if no power her with the key on the crank position check fuses, park/neutral safety switch and it's related wiring.
You might have a bad connection. Check your ignition fuse first. It may have blown. Make sure the battery terminals are on good. You should see a spark or hear the current when you take the terminal and hit the post. Listen and look to see if the battery is holding a charge. If so, you need to check the wires that go from the battery to your starter. Make sure they are getting current off the battery. You can test then with a voltage meter. Make sure the battery post and terminal ends are cleaned. Your battery, if new, should be given off over 12V or around it. Patricia, If it is not the fuse, check the wires. Make sure they are on the battery correct and the wires are tight. If you have a question, please let me know. I am here to help. Feel free to write back Patricia. Thanks for choosing FixYa.
If your talking about the memory wire on the cd player that shouldn't kill the battery, and if you mean the main power wire to cd player, make sure its wired to power supply that is only on when ignition is on, if not check to assure your ignition switch is not faulty and needing replaced.
You need to get the battery charged enough to have the key's to release from the ignition switch. Take care that you do not damage the ignition switch over a simple boost to the battery. There is a micro switch on the gear shifter that signals the ignition to release the keys, but with no power to the gear shifter switch, the key's will not come out. Good luck and hope this helps, boost the battery or charge it enough to power the electrical system to the blazer and your should be able to get your key's out of the ignition. Keep me posted, be glad to answer any other questions you may have.
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