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Home >> Chevrolet >> 1999 >> Astro Van Cargo, AWD >> Repair and Diagnosis >> Steering >> Steering Column >> Steering Column - Standard >> Diagnostic Information and Procedures >> Lock System Does Not Unlock

Lock System Does Not Unlock

Lock System Does Not Unlock

Cause Action
The shaft assembly is damaged. Repair and replace the shaft as needed. Refer to Intermediate Steering Shaft Replacement .
The shear bolts are damaged. Replace the shear bolts. Refer to Steering Shaft, Lower Bearing, and Jacket - Disassemble - Off Vehicle  and Steering Shaft, Lower Bearing, and Jacket - Assemble - Off Vehicle .
The housing assembly is damaged. Replace the housing assembly. Refer to Steering Column Jacket - Disassemble - Off Vehicle  and Steering Column Jacket - Assemble - Off Vehicle .
The automatic shift lock control system is damaged. Repair and replace the automatic transmission shift lock control system as needed. Refer to Automatic Transmission Shift Lock Control Disassemble - Off Vehicle  and Automatic Transmission Shift Lock Control Assemble - Off Vehicle .
The ignition switch assembly is damaged. Replace the ignition switch assembly. Refer to Ignition and Key Alarm Switch Assembly - Disassemble - Off Vehicle  and Ignition and Key Alarm Switch Assembly - Assemble - Off Vehicle .
The park lock cable is not adjusted properly. Adjust the park lock cable.
The shift lever is not in the park (P) position. Place the gear shift in the PARK (P) position.
The key is bent and twisted. Replace the key.