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 Description and Operation and perform the necessary inspections? | 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 7 | Go to Step 4 |
| 4 | Inspect for a faulty lock cylinder. Is the lock cylinder damaged? | Go to Step 8 | Go to Step 5 |
| 5 | Inspect the ignition switch assembly for damage. Is the ignition switch assembly damaged? | Go to Step 10 | Go to Step 6 |
| 6 | Inspect the lock module assembly for looseness or binding. Is the lock module assembly loose or binding? | Go to Step 9 | Go to Step 11 |
| 7 | Replace the key. Refer to Key and Lock Cylinder Coding in General Information. Did you complete the repair? | Go to Step 11 | |
| 8 | Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair? | Go to Step 11 | |
| 9 | Tighten or replace the lock module assembly mounting bolts. Refer to Fastener Tightening Specifications . Did you complete the repair? | Go to Step 11 | |
| 10 | Replace the ignition switch. Refer to Ignition Switch Replacement . Did you complete the repair? | Go to Step 11 | |
| 11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Lock System Does Not Unlock
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 Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Steering Wheel and Column Description and Operation |
| 2 | Verify that the lock system does not lock. Does the ignition lock cylinder solenoid operate normally? | System OK | Go to Step 3 |
| 3 | Verify the operation of the ignition lock cylinder solenoid. Is the ignition lock cylinder solenoid and linkage operation smooth when manually operated? | Go to Step 4 | Go to Step 11 |
| 4 | Verify the electrical operation of the ignition lock cylinder solenoid. Refer to Ignition Can/Cannot Be Turned Off with Transmission in Any Gear . Does the ignition lock cylinder solenoid operate normally? | Go to Step 7 | Go to Step 5 |
| 5 | Inspect the lock cylinder solenoid plunger. Does the plunger exhibit scratches or signs of wear? | Go to Step 11 | Go to Step 6 |
| 6 | Inspect the ignition lock cylinder solenoid spring. Is the solenoid spring assembled and operating normally? | Go to Step 7 | Go to Step 9 |
| 7 | Inspect for a faulty lock cylinder or release button. Is the lock cylinder or release button damaged? | Go to Step 10 | Go to Step 8 |
| 8 | Inspect the ignition lock cylinder case. Is the case worn or damaged? | Go to Step 11 | Go to Step 12 |
| 9 | Replace the Ignition Lock Cylinder Solenoid and spring. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair? | Go to Step 12 | |
| 10 | Replace the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair? | Go to Step 12 | |
| 11 | Replace the ignition lock cylinder case housing. Refer to Ignition Lock Cylinder Case Replacement . Did you complete the repair? | Go to Step 12 | |
| 12 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Lock System Does Not Lock
Lock System Sticks in Start
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Steering Wheel and Column Description and Operation |
| 2 | Verify that the lock system sticks in the START position. Does the lock system operate normally? | System OK | Go to Step 3 |
| 3 | Inspect the lock module assembly for looseness. Is the lock module assembly loose? | Go to Step 6 | Go to Step 4 |
| 4 | Inspect the lock cylinder for damage. Is the lock cylinder damaged? | 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 3 |
| 6 | Replace the lock module assembly mounting bolts. Refer to Fastener Tightening Specifications . Did you complete the repair? | Go to Step 9 | |
| 7 | Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair? | Go to Step 9 | |
| 8 | Replace the ignition switch. Refer to Ignition Switch Replacement . Did you complete the repair? | Go to Step 9 | |
| 9 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Lock System Sticks in Start
Key Cannot Be Removed in the Off Lock Position
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Ignition Lock System Description and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Steering Wheel and Column |
| 2 | Verify that the key cannot be removed from the lock cylinder in the OFF position. Does the lock system operate normally? | System OK | 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 4 | Go to Step 4 |
| 4 | Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair? | Go to Step 5 | |
| 5 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Key Cannot Be Removed in the Off Lock Position
High Lock Effort
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Steering Wheel and Column System Description and perform the necessary inspections? | Go to Step 2 | Go to Steering Wheel and Column Description and Operation |
| 2 | Verify that the lock system has a high lock effort. 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 7 | Go to Step 4 |
| 4 | Inspect for a faulty lock cylinder. Is the lock cylinder damaged? | Go to Step 8 | Go to Step 5 |
| 5 | Inspect the lock module assembly for damage. Is the lock module assembly damaged? | Go to Step 9 | Go to Step 6 |
| 6 | Inspect the ignition switch assembly for damage. Is the ignition switch assembly damaged? | Go to Step 10 | Go to Step 7 |
| 7 | Replace the key. Refer to Key and Lock Cylinder Coding in General Information. Did you complete the repair? | Go to Step 11 | |
| 8 | Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair? | Go to Step 11 | |
| 9 | Tighten or replace the lock module assembly mounting bolts. Refer to Fastener Tightening Specifications . Did you complete the repair? | Go to Step 11 | |
| 10 | Replace the ignition switch. Refer to Ignition Switch Replacement . Did you complete the repair? | Go to Step 11 | |
| 11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
High Lock Effort
Looseness in Steering Column
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Steering Wheel and Column Description and Operation |
| 2 | Verify that the steering column is loose. Is the steering column loose? | Go to Step 3 | System OK |
| 3 | Inspect the steering column mounting brackets for looseness. Are the steering column mounting brackets loose? | Go to Step 6 | Go to Step 4 |
| 4 | Verify that the steering column bracket capsule is not sheared. Is the steering column bracket capsule sheared? | Go to Step 7 | Go to Step 5 |
| 5 | Inspect the intermediate shaft for worn joints or looseness. Is the intermediate joint worn or loose? | Go to Step 8 | Go to Step 9 |
| 6 | NOTE: Refer to Fastener Notice in Cautions and Notices. Tighten the mounting bolts to specifications. Refer to Fastener Tightening Specifications .Did you complete the repair? | Go to Step 9 | |
| 7 | Replace the upper jacket assembly. Refer to Steering Column Jacket Replacement . Did you complete the replacement? | Go to Step 9 | |
| 8 | Tighten or replace the intermediate shaft as needed. Refer to Intermediate Steering Shaft Replacement . Did you complete the repair? | Go to Step 9 | |
| 9 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
| NOTE |
|---|
| Refer to Fastener Notice in Cautions and Notices. |
Looseness in Steering Column
Collapse Measurement
A vehicle involved in an accident resulting in sheet metal damage or drivers-side air bag deployment will require an inspection for steering column collapse. If the steering column collapse measurement is greater than 3 mm than the steering column upper jacket must be replaced.
For steering column collapse measurement, use the following procedure
- Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(ref-196954-S01449608982005101000000) .
- Inspect the upper steering column mounting capsule nuts for movement (a). If the steering column collapse measurement is greater than 3 mm than the steering column upper jacket must be replaced. Refer to «Steering Column Jacket Replacement»(ref-196954-S11840674682005101000000) .
- Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(ref-196954-S01449608982005101000000) .
Vehicle Steering
The steering wheel is the first link between the driver and the vehicle. The steering wheel is fastened to a steering shaft within the column. At the lower end of the column, the intermediate shaft connects the column to the steering gear.
Vehicle Security-Some Vehicle Models
Theft deterrent components are mounted and designed into the steering column. The following components allow the column to be locked in order to minimize theft
- The ignition switch
- The steering column lock
- The ignition cylinder
Driver Convenience
The steering wheel and column may also have driver controls attached for convenience and comfort. The following controls may be mounted on or near the steering wheel or column.
- The turn signal switch
- The hazard switch
- The headlamp dimmer switch
- The wiper/washer switch
- The horn pad/cruise control switch
- The tilt or tilt/telescoping functions
Driver Safety
The energy-absorbing steering column compresses in the event of a front-end collision, which reduces the chance of injury to the driver. The mounting capsules break away from the mounting bracket in the event of an accident.
Ignition Lock Cylinder Control Actuator
If the vehicle is equipped with a floor mounted console gear shifter, it has a ignition lock cylinder control actuator system in the steering column. The ignition lock cylinder control actuator's purpose is to prevent the ignition key from being turned to the OFF position when the transmission is in gear and the vehicle may still be moving. The column ignition lock system consists of a ignition lock cylinder control actuator, and a park position switch that is located in the A/T shift lock control switch. The ignition lock cylinder control actuator contains a pin that is spring loaded out to mechanically prevent the ignition key cylinder from being turned to the lock position when vehicle transmission is not in the Park position. If vehicle power is lost, and/or the transmission is not in the Park position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column.