Electrical Information Reference
- «Circuit Testing»(ref-241671-S15536097382006081100000)
- «Connector Repairs»(ref-241671-S30908621342006081100000)
- «Testing for Intermittent Conditions and Poor Connections»(ref-241671-S27410119602006081100000)
- «Wiring Repairs»(ref-241671-S28487612812006081100000)
Repair Instructions
| IMPORTANT | Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. |
- «Steering Wheel Control Switch Assembly Replacement»(ref-241676-S05936178102006081100000)
- «Control Module References»(ref-241672-S08014971642006081100000) for radio replacement, setup and programming
Symptoms - Steering Wheel and Column
Review the system description and operation in order to familiarize yourself with the system functions. Refer to Steering Wheel and Column Description and Operation .
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .
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 Ignition Lock 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 does not unlock. Does the lock system operate normally? | System OK | Go to Step 3 |
| 3 | Inspect for an incorrect, a worn or a 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 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 3 |
| 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 | Replace the steering column. Refer to Steering Column Replacement . 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
Steering Column Tilt Function Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| 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 |
| 2 | Verify that the steering column tilt function is inoperative. Does the steering column tilt function operate normally? | System OK | Go to Step 3 |
| 3 | Verify that the shoe is not seized on the pivot pin. Is the shoe seized on the pivot pin? | Go to Step 9 | Go to Step 4 |
| 4 | Inspect the shoe grooves for dirt, burrs or rust. Are the shoe grooves free of dirt, burrs and rust? | Go to Step 9 | Go to Step 5 |
| 5 | Inspect weak or broken shoe lock spring. Is the shoe lock spring weak or broken? | Go to Step 9 | Go to Step 6 |
| 6 | Inspect the pivot pins for binding. Are the pivot pins binding? | Go to Step 9 | Go to Step 7 |
| 7 | Inspect for a weak or broken wheel tilt spring. Is the wheel tilt spring weak or broken? | Go to Step 10 | Go to Step 8 |
| 8 | Inspect the steering column wiring harness for tightness. Is the steering column wiring harness too tight? | Go to Step 11 | Go to Step 3 |
| 9 | Replace the steering column. Refer to Steering Column Replacement . Is the repair complete? | Go to Step 12 | |
| 10 | Replace the steering column tilt spring. Refer to Tilt Spring Replacement . Is the repair complete? | Go to Step 12 | |
| 11 | Reroute the steering column wiring harness to the correct location. Is the steering column wiring harness routed properly? | Go to Step 12 | |
| 12 | Operate the steering column tilt function in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Steering Column Tilt Function Inoperative
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 ignition lock 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 does not lock. 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 9 | Go to Step 4 |
| 4 | Inspect for a faulty lock cylinder. Is the lock cylinder or release button damaged? | Go to Step 10 | Go to Step 5 |
| 5 | Inspect the shift linkage adjustment. Is the shift linkage adjusted incorrectly? | Go to Step 11 | Go to Step 6 |
| 6 | Inspect the automatic transmission shift lock control for damage. Is the automatic shift lock control damaged? | Go to Step 12 | Go to Step 7 |
| 7 | Inspect the ignition switch for damage. Is the ignition switch damaged? | Go to Step 12 | Go to Step 8 |
| 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 . Did you complete the repair? | Go to Step 13 | |
| 10 | Adjust the shift linkage. Did you complete the repair? | Go to Step 13 | |
| 11 | Replace 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 | |
| 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 |
Lock System Does Not Lock
Lock System Sticks in Start
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Ignition Lock 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 sticks in the START position. Does the lock system operate normally? | System OK | Go to Step 3 |
| 3 | Inspect the lock module assembly for damage. Is the lock module assembly damaged? | 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 steering column. Refer to Steering Column Replacement . 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
Ignition Key Cannot Be Removed from the Ignition Lock Cylinder
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Ignition Lock System Description and perform the necessary inspections? | Go to Step 2 | Go to Steering Wheel and Column Description and Operation |
| 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 an incorrect, a worn or a damaged key. Is the key incorrect, worn or damaged? | Go to Step 5 | Go to Step 4 |
| 4 | Inspect for a faulty lock cylinder or release button. Is the lock cylinder or release button damaged? | Go to Step 6 | Go to Step 3 |
| 5 | Replace the key. Refer to Key and Lock Cylinder Coding in General Information. Did you complete the repair? | Go to Step 7 | |
| 6 | Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair? | Go to Step 7 | |
| 7 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Ignition Key Cannot Be Removed from the Ignition Lock Cylinder
Ignition Key Cannot Turn or Sticks in Any 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 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, a worn or a 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 | Replace the steering column. Refer to Steering Column Replacement . 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 |
Ignition Key Cannot Turn or Sticks in Any Position
High Shift Effort
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you review the Steering Wheel and Column Description? | Go to Step 2 | Go to Steering Wheel and Column Description and Operation |
| 2 | Verify that a high shift effort is required in order to shift out of the PARK position. Does the shifter operate normally? | System OK | Go to Step 3 |
| 3 | Inspect for worn or damaged shift linkage components. Are the shift linkage components worn or damaged? | Go to Step 6 | Go to Step 4 |
| 4 | Inspect for a damaged linear shift assembly. Is the linear shift assembly damaged? | Go to Step 7 | Go to Step 5 |
| 5 | Inspect the shift cable for binding or misadjustment. Is the shift cable binding or misadjusted? | Go to Step 8 | Go to Step 3 |
| 6 | Replace the shift cable. Refer to Automatic Transmission Range Selector Cable Replacement in Automatic Transaxle - 4T65-E. Did you complete the repair? | Go to Step 9 | |
| 7 | Replace the steering column. Refer to Steering Column Replacement . Did you complete the repair? | Go to Step 9 | |
| 8 | Adjust the shift cable. Refer to Automatic Transmission Range Selector Cable Adjustment in Automatic Transaxle - 4T65-E. 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 |
High Shift 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 8 | 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 9 | Go to Step 5 |
| 5 | NOTE: Refer to Fastener Notice in Cautions and Notices. Inspect the support screws for looseness.Are the support screws loose?Tighten the screws to specifications. Refer to Fastener Tightening Specifications . | Go to Step 6 | |
| 6 | Inspect the intermediate shaft for worn joints or looseness. Is the intermediate joint worn or loose? | Go to Step 10 | Go to Step 7 |
| 7 | Inspect the tilt head, support and pivot pins for looseness. Are there any loose components? | Go to Step 9 | Go to Step 2 |
| 8 | Tighten the brackets to specifications. Refer to Fastener Tightening Specifications . Did you complete the repair? | Go to Step 12 | |
| 9 | Replace the steering column. Refer to Steering Column Replacement . Did you complete the replacement? | Go to Step 12 | |
| 10 | Tighten or replace the intermediate shaft. Refer to Intermediate Steering Shaft Replacement . Did you complete the repair? | Go to Step 12 | |
| 11 | Replace the steering column. Refer to Steering Column 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 3 |
| NOTE |
|---|
| Refer to Fastener Notice in Cautions and Notices. |
Looseness in Steering Column
Tools Required
J 42640 Steering Column Anti-Rotation Pin. See Special Tools .
J 42640 Steering Column Anti-Rotation Pin. See Special Tools .
- J 1859-A Steering Wheel Puller. See «Special Tools»(ref-241676-S21094334892006081100000) .
- J 42578 Steering Wheel Puller Legs. See «Special Tools»(ref-241676-S21094334892006081100000) .
J 42640 Steering Column Anti-Rotation Pin. See Special Tools .
Centering Procedure
- Verify the following conditions before centering the SIR coil : The wheels on the vehicle are pointed straight ahead. The block tooth (1) of the steering shaft is in the 12 o'clock position. The ignition switch is in the LOCK position or J 42640 is installed in the upper tilt head. See «Special Tools»(ref-241676-S21094334892006081100000) .
- If the front side (3) of the SIR coil does NOT have a centering window and the back side (2) does NOT have a spring service lock (1), perform the following steps: Hold the coil with the face up. Rotate the coil hub clockwise until the coil ribbon stops. Rotate the coil hub, slowly, counter clockwise, for 2.5 revolutions. This is center position. While maintaining the coil hub in center position, align the centered SIR coil with the horn tower and slide onto the steering shaft.
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, found on 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 redundant radio/entertainment system controls
- The tilt or tilt/telescoping functions
- The navigation/OnStar® features
- The HVAC controls
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 shift, 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 the 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.