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Home/Chevrolet/Cobalt/Chevrolet Cobalt I (2004-2010)/Repair manual/Ignition Switch/steering Lock/Steering Wheel & Steering Column
Contents Wiring diagrams Section: Ignition Switch/steering Lock All sections

Steering Wheel & Steering Column Chevrolet Cobalt I

Ignition Switch/steering Lock 7 illustrations ~3344 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Ignition Lock Cylinder Solenoid Screw2 N.m17 lb in
Ignition Switch Screws2 N.m17 lb in
Intermediate Shaft Pinch Bolt34 N.m25 lb ft
Ignition Lock Cylinder Case Shear Bolt20 N.m15 lb ft
Multi-Function Turn Signal/Headlamp Switch Screw2 N.m17 lb in
Steering Column Mid Pivot Bolt25 N.m18 lb ft
Steering Column Mounting Bolt25 N.m18 lb ft
Steering Column Trim Cover Screws2 N.m17 lb in
Steering Column Upper Jacket Bolt11 N.m97 lb in
Steering Wheel Nut41 N.m31 lb ft

Fastener Tightening Specifications

Scheme 1

Scheme 1: Column/Ignition Lock Schematics
Scheme 1: Column/Ignition Lock Schematics

Scheme 2

Scheme 2: Steering Column Disassembled View
Scheme 2: Steering Column Disassembled View
CalloutComponent Name
1Lower Intermediate Steering Shaft Bold
2Intermediate Steering Shaft Assembly
3Upper Intermediate Steering Shaft Bolt
4Lower Steering Column Support Bracket Bolt
5Lower Steering Column Jacket Bolt
6Steering Column Assembly
7Ignition/Start Switch Clamp Bolt
8Ignition/Start Switch Clamp
9Upper Steering Column Support Bracket Bolt
10Turn Signal Switch Bracket Screw
11Turn Signal Switch Bracket Screw
12Inflatable Restraint Steering Wheel Module Coil Assembly
13Ignition/Start Switch Screw
14Ignition/Start Switch Assembly
15Ignition/Start Switch Housing
16Sleeve
17Ignition Lock Cylinder Control Solenoid Screw
18Ignition Lock Cylinder Control Solenoid Assembly
19Steering Column Jacket Assembly
20Steering Wheel Nut
21Steering Wheel Assembly
22Inflatable Restraint Steering Wheel Module Retainer
23Steering Wheel Shroud Screw
24Wiper/Washer Switch Assembly
25Steering Wheel Shroud
26Lower Trim Cover Clip
27Upper Trim Cover
28Cruise Control Resume Switch Assembly
29Cruise Control Switch Assembly
30Harness Assembly
31Lower Trim Cover Plug
32Lower Trim Cover Screw
33Lower Trim Cover
34Headlamp/Dimmer/Park/Turn Signal Switch Assembly

Scheme 3

Scheme 3: Steering Wheel and Column Component Views
Scheme 3: Steering Wheel and Column Component Views
CalloutComponent Name
1Turn Signal/Multifunction Switch
2Inflatable Restraint Steering Wheel Module Coil
3Windshield Wiper/Washer Switch
4Steering Wheel
5Steering Wheel Controls - Right (UK3)
6Horn Switch
7Steering Wheel Controls - Left (UK3)
8Electronic Power Steering Control Module (EPS)
9Electronic Power Steering (EPS) Control Motor
10Ignition Switch
11Ignition Lock Cylinder Control Solenoid (MN5)

Steering Wheel and Column Connector End Views

Ignition Lock Cylinder Control Solenoid (MN5) Connector Part Information OEM: 12052832 Service: See Catalog 2-Way F M/P 150 (BK) Pin Wire Color Circuit No. Function A D-GN/WH 1932 Shift Select Switch Park Signal B BN 4 Accessory Voltage

Steering Wheel Controls Left (UK3) Connector Part Information OEM: 50-57-9406 Service: See Catalog 6-Way F Molex (BK) Pin Wire Color Circuit No. Function 1 L-GN 1011 Remote Radio Control Signal 2 GY 8 Instrument Panel Lamps Supply Voltage 3 BK 151 Ground 4 D-BU 1796 Steering Wheel Controls Signal 5 PK 339 Ignition 1 Voltage 6 YE 397 Cruise Control On Switch Signal

Steering Wheel Controls Right (UK3) Connector Part Information OEM: 50-57-9407 Service: See Catalog 7-Way F Molex (BK) Pin Wire Color Circuit No. Function 1 WH/BK 644 10-Volt Reference 2 GY 8 Instrument Panel Lamps Supply Voltage 3 BK 651 Ground 4 D-BU 1796 Steering Wheel Controls Signal 5 L-GN 1011 Remote Radio Control Signal 6 YE 397 Cruise Control On Switch Signal 7 GY/BK 1884 Cruise Control Switch Signal

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 .

Visual/Physical Inspection

  1. Inspect for aftermarket devices which could affect the operation of the steering wheel and column.
  2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Symptoms List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

  1. «Lock System Does Not Unlock»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column__lock-system-does-not-unlock)
  2. «Lock System Does Not Lock»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column__lock-system-does-not-lock)
  3. «Lock System Sticks in Start»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column__lock-system-sticks-in-start)
  4. «Key Cannot Be Removed in the Off Lock Position»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column__key-cannot-be-removed-in-the)
  5. «High Lock Effort»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column__high-lock-effort)
  6. «Noise in Steering Column»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column__noise-in-steering-column)
  7. «Looseness in Steering Column»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column__looseness-in-steering-column)

Ignition Can/Cannot Be Turned Off with Transmission in Any Gear

StepActionYesNo
Schematic Reference: Column/Ignition Lock Schematics Connector End View Reference: Steering Wheel and Column Connector End Views
1Verify the condition is present. Does the system operate normally?Go to Testing for Intermittent Conditions and Poor Connections in Wiring SystemsGo to Step 2
2Remove the small square cover from the lower steering column trim cover. Push the ignition lock cylinder control actuator release button to the left. Turn the key to the OFF position and remove the key. Were you able to turn the key to the OFF position and remove the key?Go to Step 3Go to Lock System Does Not Lock
3Turn OFF the ignition. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement . Disconnect the ignition lock cylinder control actuator. Turn ON the ignition, with the engine OFF. Connect a test lamp between the accessory voltage circuit and the shift select switch park signal circuit of the ignition lock cylinder control actuator. Cycle the gear shifter from Park to Drive. Does the test lamp turn ON and OFF with each cycle?Go to Step 10Go to Step 4
4Does the test lamp remain illuminated with each cycle?Go to Step 6Go to Step 5
5Put the gear shifter into Park. Connect a test lamp between the shift select switch park signal circuit of the ignition lock cylinder control actuator and B+ voltage. Does the test lamp illuminate?Go to Step 11Go to Step 7
6Test the shift select switch park signal circuit of the ignition lock cylinder control actuator for a short to ground. Did you find and correct the condition?Go to Step 14Go to Step 9
7Test the shift select switch park signal circuit of the ignition lock cylinder control actuator for an open. Did you find and correct the condition?Go to Step 14Go to Step 8
8Test the ground circuit of the ignition lock cylinder control switch for an open. Did you find and correct the condition?Go to Step 14Go to Step 9
9Inspect for poor connections at the shifter assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?Go to Step 14Go to Step 12
10Inspect for poor connections at the ignition lock cylinder control actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?Go to Step 14Go to Step 13
11Repair the accessory voltage circuit of the ignition lock cylinder control actuator. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair?Go to Step 14
12Replace the shifter assembly. Refer to Floor Shift Control Replacement in Automatic Transaxle - 4T40-E/4T45-E. Did you complete the replacement?Go to Step 14
13Replace the ignition lock cylinder control actuator. Refer to Ignition Lock Cylinder Solenoid Replacement . Did you complete the replacement?Go to Step 14
14Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3

Ignition Can/Cannot Be Turned Off with Transmission in Any Gear

Lock System Does Not Unlock

StepActionYesNo
DEFINITION: The lock system does not allow the key to rotate out of the OFF position.
1Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections?Go to Step 2Go to Steering Wheel and Column Description and Operation
2Verify that the lock system does not unlock. Does the lock system operate normally?System OKGo to Step 3
3Inspect for an incorrect, worn, or damaged key. Is the key incorrect, worn, or damaged?Go to Step 7Go to Step 4
4Inspect for a faulty lock cylinder. Is the lock cylinder damaged?Go to Step 8Go to Step 5
5Inspect the ignition switch assembly for damage. Is the ignition switch assembly damaged?Go to Step 10Go to Step 6
6Inspect the lock module assembly for looseness or binding. Is the lock module assembly loose or binding?Go to Step 9Go to Step 11
7Replace the key. Refer to Key and Lock Cylinder Coding in General Information. Did you complete the repair?Go to Step 11
8Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair?Go to Step 11
9Tighten or replace the lock module assembly mounting bolts. Refer to Fastener Tightening Specifications . Did you complete the repair?Go to Step 11
10Replace the ignition switch. Refer to Ignition Switch Replacement . Did you complete the repair?Go to Step 11
11Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3

Lock System Does Not Unlock

Lock System Does Not Lock

StepActionYesNo
DEFINITION: The lock system will not allow the key to be turned to the OFF lock position.
1Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections?Go to Step 2Go to Steering Wheel and Column Description and Operation
2Verify that the lock system does not lock. Does the ignition lock cylinder solenoid operate normally?System OKGo to Step 3
3Verify the operation of the ignition lock cylinder solenoid. Is the ignition lock cylinder solenoid and linkage operation smooth when manually operated?Go to Step 4Go to Step 11
4Verify 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 7Go to Step 5
5Inspect the lock cylinder solenoid plunger. Does the plunger exhibit scratches or signs of wear?Go to Step 11Go to Step 6
6Inspect the ignition lock cylinder solenoid spring. Is the solenoid spring assembled and operating normally?Go to Step 7Go to Step 9
7Inspect for a faulty lock cylinder or release button. Is the lock cylinder or release button damaged?Go to Step 10Go to Step 8
8Inspect the ignition lock cylinder case. Is the case worn or damaged?Go to Step 11Go to Step 12
9Replace the Ignition Lock Cylinder Solenoid and spring. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair?Go to Step 12
10Replace the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair?Go to Step 12
11Replace the ignition lock cylinder case housing. Refer to Ignition Lock Cylinder Case Replacement . Did you complete the repair?Go to Step 12
12Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 2

Lock System Does Not Lock

Lock System Sticks in Start

StepActionYesNo
1Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections?Go to Step 2Go to Steering Wheel and Column Description and Operation
2Verify that the lock system sticks in the START position. Does the lock system operate normally?System OKGo to Step 3
3Inspect the lock module assembly for looseness. Is the lock module assembly loose?Go to Step 6Go to Step 4
4Inspect the lock cylinder for damage. Is the lock cylinder damaged?Go to Step 7Go to Step 5
5Inspect the ignition switch for damage. Is the ignition switch damaged?Go to Step 8Go to Step 3
6Replace the lock module assembly mounting bolts. Refer to Fastener Tightening Specifications . Did you complete the repair?Go to Step 9
7Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair?Go to Step 9
8Replace the ignition switch. Refer to Ignition Switch Replacement . Did you complete the repair?Go to Step 9
9Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3

Lock System Sticks in Start

Key Cannot Be Removed in the Off Lock Position

StepActionYesNo
1Did you review the Ignition Lock System Description and perform the necessary inspections?Go to Step 2Go to Symptoms - Steering Wheel and Column
2Verify that the key cannot be removed from the lock cylinder in the OFF position. Does the lock system operate normally?System OKGo to Step 3
3Inspect for a faulty lock cylinder or release button. Is the lock cylinder or release button damaged?Go to Step 4Go to Step 4
4Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair?Go to Step 5
5Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3

Key Cannot Be Removed in the Off Lock Position

High Lock Effort

StepActionYesNo
1Did you review the Steering Wheel and Column System Description and perform the necessary inspections?Go to Step 2Go to Steering Wheel and Column Description and Operation
2Verify that the lock system has a high lock effort. Does the lock system operate normally?System OKGo to Step 3
3Inspect for an incorrect, worn, or damaged key. Is the key incorrect, worn, or damaged?Go to Step 7Go to Step 4
4Inspect for a faulty lock cylinder. Is the lock cylinder damaged?Go to Step 8Go to Step 5
5Inspect the lock module assembly for damage. Is the lock module assembly damaged?Go to Step 9Go to Step 6
6Inspect the ignition switch assembly for damage. Is the ignition switch assembly damaged?Go to Step 10Go to Step 7
7Replace the key. Refer to Key and Lock Cylinder Coding in General Information. Did you complete the repair?Go to Step 11
8Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair?Go to Step 11
9Tighten or replace the lock module assembly mounting bolts. Refer to Fastener Tightening Specifications . Did you complete the repair?Go to Step 11
10Replace the ignition switch. Refer to Ignition Switch Replacement . Did you complete the repair?Go to Step 11
11Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3

High Lock Effort

Noise in Steering Column

StepActionYesNo
1Did you review the Steering Wheel and Column Description and perform the necessary inspections?Go to Step 2Go to Steering Wheel and Column Description and Operation
2Verify that noise is present in the steering column during operation. Is noise present in the steering column during operation?Go to Step 3System OK
3Inspect the steering column components for looseness. Are the steering column components loose?Go to Step 6Go to Step 4
4Inspect the SIR coil for noise. Is the SIR coil noisy?Go to Step 7Go to Step 5
5Inspect the upper steering column shaft bearing for the following conditions: Damage Lubrication Wear Proper seating Are the bearings in need of repair or replacement?Go to Step 8Go to Step 9
6Tighten the steering column components to specifications. Refer to Fastener Tightening Specifications . Did you complete the repair?Go to Step 9
7Replace the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR. Did you complete the repair?Go to Step 9
8Replace the upper jacket assembly. Refer to Steering Column Jacket Replacement . Did you complete the repair?Go to Step 9
9Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3

Noise in Steering Column

Looseness in Steering Column

StepActionYesNo
1Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections?Go to Step 2Go to Steering Wheel and Column Description and Operation
2Verify that the steering column is loose. Is the steering column loose?Go to Step 3System OK
3Inspect the steering column mounting brackets for looseness. Are the steering column mounting brackets loose?Go to Step 6Go to Step 4
4Verify that the steering column bracket capsule is not sheared. Is the steering column bracket capsule sheared?Go to Step 7Go to Step 5
5Inspect the intermediate shaft for worn joints or looseness. Is the intermediate joint worn or loose?Go to Step 8Go to Step 9
6NOTE: 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
7Replace the upper jacket assembly. Refer to Steering Column Jacket Replacement . Did you complete the replacement?Go to Step 9
8Tighten or replace the intermediate shaft as needed. Refer to Intermediate Steering Shaft Replacement . Did you complete the repair?Go to Step 9
9Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3
NOTE
Refer to Fastener Notice in Cautions and Notices.

Looseness in Steering Column

Removal Procedure

  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/cobalt/i-2004-2010/remont/hoistjack/#general-information__lifting-and-jacking-the-vehicle) in General Information.
  2. Remove the left front tire. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/cobalt/i-2004-2010/remont/wheel-tire-system/#tires-and-wheels) in Tire and Wheel.
  3. Remove the intermediate shaft to steering gear pinch bolt. Discard the bolt.
  4. Disconnect the intermediate shaft from the steering gear.
  5. Lower the vehicle.
  6. Align the steering wheel into the straight forward position.
  7. Remove the ignition key and turn the steering wheel clockwise until it locks.
  8. Place scribe marks on the intermediate shaft to the steering column connection prior to removal.
  9. Remove the intermediate shaft pinch bolt at the steering column. Discard the pinch bolt.
  10. Slide the intermediate shaft off the steering column shaft.
  11. Use a pulling, squeezing and twisting motion to unseat the intermediate shaft seal from the dash.
  12. Remove the intermediate shaft/seal from the vehicle.

Installation Procedure

  1. If installing a new intermediate shaft, transfer the pre-scribed alignment marks onto the new part.
  2. Install the intermediate shaft/seal through the front of dash.
  3. Seat the intermediate shaft seal using a pushing, squeezing and twisting motion until seal is fully seated.
  4. Align the pre-scribed mark on the intermediate shaft to the pre-scribed mark on the steering column shaft.
  5. Connect the intermediate shaft to the steering column shaft.
  6. If the intermediate shaft was removed without the use of a scribed mark, perform the following: Place the road wheels in the straight ahead position. Install the intermediate shaft to the steering gear so the intermediate shaft bolt head faces the LH wheel well opening. Place the steering wheel in the straight ahead position. Connect the intermediate shaft to the steering column shaft.
  7. Install a new intermediate shaft to steering column pinch bolt. Tighten: Tighten the bolt to 34 N.m (25 lb ft).
  8. Connect the intermediate shaft to the steering gear.
  9. Install a new intermediate shaft to steering gear pinch bolt. Tighten: Tighten the bolt to 34 N.m (25 lb ft).
  10. Install the left front wheel. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/cobalt/i-2004-2010/remont/wheel-tire-system/#tires-and-wheels) in Tire and Wheel.
  11. Check for proper steering wheel alignment. If steering wheel is out of alignment perform the following: Remove the intermediate shaft pinch bolt at the steering column. Disconnect the intermediate shaft in order to rotate and reconnect as needed to straighten the steering alignment. Install a new intermediate shaft pinch bolt. Tighten: Tighten the bolt to 34 N.m (25 lb ft).

Inspection

This vehicle is equipped with electric power steering (EPS), with the electric motor and torque sensor mounted on the steering column. When involved in an accident resulting in sheet metal damage or driver-side air bag deployment, the steering column must be inspected for both electrical system integrity and steering column collapse. Refer to Diagnostic System Check - Vehicle in Vehicle DTC Information.

  1. If the steering column electrical system integrity is not within specifications, the complete steering column must be replaced. Refer to «Steering Column Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  2. If the steering column collapse mechanism is not within specifications, but the electrical system integrity is within specifications, then the steering column upper jacket must be replaced. Refer to «Steering Column Jacket Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .

Road test the vehicle when ever any steering system repairs or diagnostics have been performed.

Electric Power Steering (EPS) Inspection

2 Tests if the steering column is damaged due to a previous accident or airbag deployment.

StepActionValue(s)YesNo
1Install a scan tool. Does the scan tool power up?Go to Step 2Go to Scan Tool Does Not Power Up in Computer/Integrating Systems
2Start the engine. Turn the steering wheel 90° to the left, then 90° to the right, then return the steering wheel to center. IMPORTANT: After centering the steering wheel, remove hands and other objects from the steering wheel. Ensure the suspension is relaxed and that no bias, or uneven force, is being applied to the steering system. Using the scan tool, observe the Torque Sensor Main data parameter in the EPS data list. Does the scan tool indicate that the Torque Sensor Main data parameter is less than the specified range?< + or - 1 N.m(0.7 lb ft)System OK.Replace the steering column assembly. Refer to Steering Column Replacement in Steering Wheel and Column
IMPORTANT
After centering the steering wheel, remove hands and other objects from the steering wheel. Ensure the suspension is relaxed and that no bias, or uneven force, is being applied to the steering system.

Steering Column Accident Damage Inspection

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

  1. Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  2. 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»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  3. Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  2. Position the steering column in the full downward position.
  3. Unsnap and remove the upper steering column cover.
  4. Remove the lower steering column cover screws.
  5. Remove the lower steering column trim cover.
  1. Install the lower steering column cover.
  2. Install the lower steering column cover screws. Tighten: Tighten the lower steering column cover screws to 2 N.m (17 lb in).
  3. Install the upper steering column trim cover by guiding the soft closeout under the I/P Trim Panel.
  4. Push on the upper steering column cover until it snaps into place and is secure.
  5. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  1. Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  2. Disconnect the ignition switch harness connector.
  3. Turn the ignition switch to the run position.
  4. Remove the ignition switch screws.
  5. Remove the ignition switch from the steering column.
  1. Install the ignition switch and screws on to the steering column. Tighten: Tighten the screws to 2 N.m (17 lb in).
  2. Connect the ignition switch harness connector.
  3. Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) . IMPORTANT: If the ignition switch is replaced and a learn procedure is not performed, the engine will crank but not start or will start and stall immediately.
  4. Perform the vehicle theft deterrent system learn procedure. Refer to «Programming Theft Deterrent System Components»(/chevrolet/cobalt/i-2004-2010/remont/door-locks-anti-theft-systems/#theft-deterrent-system) in Theft Deterrent.
  1. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(/chevrolet/cobalt/i-2004-2010/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
  2. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  3. Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  4. Turn the ignition lock cylinder to the RUN position.
  5. Depress the first retainer through the lock housing access hole (2) with a small Allen wrench or similar pick-type tool. The lock cylinder will back out slightly.
  6. Depress the second retainer through the lock housing access hole (1). The lock cylinder will back out slightly again.
  7. Pull the lock cylinder out enough to locate the second retainer to the lock housing access hole (2).
  8. Depress the retainer though the access hole (2) a second time. The ignition cylinder should release from the housing. If not, the ignition cylinder may need to be moved in and out several times to locate the retainer correctly in the hole.
  9. Remove the lock cylinder from the lock housing.
  1. Position the lock cylinder in the run position. Insert the cylinder into the lock housing.
  2. Rotate the lock cylinder in the housing. Verify proper rotation.
  3. Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  4. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  5. Connect the negative battery cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(/chevrolet/cobalt/i-2004-2010/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
  1. Remove the steering wheel. Refer to «Steering Wheel Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  2. Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  3. Remove the inflatable restraint steering wheel module. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  4. If applicable, disconnect the ignition lock cylinder solenoid harness connector.
  5. Disconnect the ignition switch harness connector.
  6. Using the following procedure, remove the ignition lock cylinder case shear bolt: Use a hammer and chisel to bite into the shear bolt at a position offset from center. Tap the chisel to rotate the bolt in order to loosen it. Repeat as necessary until bolt is loose enough to remove.
  7. Remove the ignition lock cylinder case housing from the steering column.
  8. Remove the ignition lock cylinder from the lock cylinder case housing. Refer to «Ignition Lock Cylinder Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  1. Install the ignition lock cylinder into the lock cylinder housing. Refer to «Ignition Lock Cylinder Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  2. Install the lock cylinder case housing to the steering column.
  3. Install the lock cylinder case housing clamp and a new shear bolt. Ensure the tab is correctly positioned.
  4. Tighten the shear bolt until the head breaks off.
  5. If applicable, connect the ignition lock cylinder solenoid harness connector.
  6. Connect the ignition switch harness connector to the lock module.
  7. Install the inflatable restraint steering wheel module. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  8. Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  9. Install the steering wheel. Refer to «Steering Wheel Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  1. Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  2. Disconnect the Ignition lock cylinder solenoid harness connector.
  3. Remove the Ignition lock cylinder solenoid screws.
  4. Remove the Ignition lock cylinder solenoid from the lock cylinder case housing.
  1. Install a new spring over the ignition lock cylinder solenoid plunger.
  2. Carefully install the new ignition lock cylinder solenoid over the plunger.
  3. Seat the ignition lock cylinder solenoid on the lock cylinder case housing and install the screws. Tighten: Tighten the screws to 2 N.m (17 lb in).
  4. Connect the lock cylinder solenoid harness connector.
  5. Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  6. Check the operation of the ignition lock cylinder solenoid.
  1. Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  2. Disconnect the multifunction turn signal switch harness connector.
  3. Depress the locking tabs and remove the multifunction turn signal switch from the steering column.
  1. Install the multifunction turn signal switch to the steering column. Ensure the locking tabs are snapped into place.
  2. Connect the multifunction turn signal switch harness connector.
  3. Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .

Scheme 4

Scheme 4: Steering Wheel Control Switch Assembly Replacement
Scheme 4: Steering Wheel Control Switch Assembly Replacement
CalloutComponent Name
NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .
1Switch Assembly, Steering Wheel Control Tip: Pry out the switch using a small flat-bladed tool. Disconnect the electrical connectors.
NOTE
Refer to Fastener Notice in Cautions and Notices.

Steering Wheel Control Switch Assembly Replacement

Scheme 5

Scheme 5: Steering Wheel Replacement
Scheme 5: Steering Wheel Replacement
CalloutComponent Name
NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . Preliminary Procedures Disable the SIR system. Refer to SIR Zone Identification Views . Remove the steering wheel SIR module. Refer to Inflatable Restraint Steering Wheel Module Replacement . Remove the I/P cluster bezel. Refer to Bezel Replacement - Instrument Panel (I/P) Cluster . Remove the steering column covers. Refer to Steering Wheel Shroud Replacement .
1Nut, Steering Wheel Tighten: 40 N.m (30 lb ft)
2Wheel, Steering Tip: Use J 1859-A and J 42578 to remove the steering wheel. See Special Tools .
NOTE
Refer to Fastener Notice in Cautions and Notices.

Steering Wheel Replacement

Scheme 6

Scheme 6: Steering Wheel Shroud Replacement
Scheme 6: Steering Wheel Shroud Replacement
CalloutComponent Name
NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . Preliminary Procedures: Remove the I/P cluster bezel. Refer to Bezel Replacement - Instrument Panel (I/P) Cluster .
1Cover Assembly, Steering Column Upper
2Cover Assembly, Steering Column Left
3Cover Assembly, Steering Column Right
NOTE
Refer to Fastener Notice in Cautions and Notices.

Steering Wheel Shroud Replacement

  1. Place the steering wheel in the straight forward position.
  2. Remove the steering wheel. Refer to «Steering Wheel Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  3. Remove the column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  4. Disconnect the head lamp/turn signal harness connector from the SIR coil module assembly.
  5. Disconnect the wiper/washer harness connector from the SIR coil module assembly.
  6. Disconnect the SIR coil harness connector from the SIR coil module assembly.
  7. Remove the SIR coil module assembly. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  8. Disconnect the ignition lock cylinder harness connector.
  9. Disconnect the ignition switch harness connector.
  10. Place scribe marks on the intermediate shaft to steering column, for use during assembly.
  11. Remove the intermediate shaft pinch bolt at the steering column and discard.
  12. Slide the intermediate shaft off the steering column.
  13. Disconnect the EPS control module power feed harness connector.
  14. Disconnect the EPS control module small harness connector.
  15. Remove the steering column pivot Bolt.
  16. Remove the steering column mounting bolts.
  17. Remove the column from the vehicle and place on a bench.
  18. Remove the ignition lock cylinder case from the steering column. Refer to «Ignition Lock Cylinder Case Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  1. If replacing the steering column duplicate the scribed mark placed on the old column.
  2. Install the ignition lock cylinder case to the steering column. Refer to «Ignition Lock Cylinder Case Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  3. Position the steering column in the vehicle.
  4. Hand start the steering column mid-pivot bolt.
  5. Hand start the steering column mounting bolts.
  6. Tighten the column bolts using the following order: Tighten: Tighten the mid-pivot bolt to 25 N.m (18 lb ft). Tighten the RH column mounting bolt to 25 N.m (18 lb ft). Tighten the LH column mounting bolt to 25 N.m (18 lb ft).
  7. Connect the EPS control module power feed harness connector.
  8. Connect the EPS control module small harness connector.
  9. Slide the intermediate shaft onto the steering column while aligning the previously scribed marks.
  10. If the steering column to intermediate shaft was not previously scribed. Refer to «Intermediate Steering Shaft Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  11. Install a new intermediate shaft pinch bolt. Tighten: Tighten bolt to 34 N.m (25 lb ft).
  12. Connect the ignition lock cylinder harness connector.
  13. Connect the ignition switch harness connector.
  14. Install the SIR coil module assembly. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  15. Connect the SIR coil harness connector to the SIR coil module assembly.
  16. Connect the wiper/washer harness connector to the SIR coil module assembly.
  17. Connect the head lamp/turn signal harness connector to the SIR coil module assembly.
  18. Install the upper and lower shroud. Refer to «Steering Wheel Shroud Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  19. Install the steering wheel. Refer to «Steering Wheel Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  1. Place the steering wheel in the straight forward position.
  2. Remove the steering wheel. Refer to «Steering Wheel Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  3. Remove the column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  4. Remove the SIR coil module assembly. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  5. Remove the ignition lock cylinder case. Refer to «Ignition Lock Cylinder Case Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  6. Remove the steering column mounting bolts.
  7. Support the lower column as necessary.
  8. Remove the jacket attaching bolts.
  9. Remove the upper jacket from the steering column.
  1. Clean the column shaft splines
  2. Use the supplied grease to apply 2 grams (0.07 oz) of grease to the column shaft splines.
  3. Install the new jacket on the steering column.
  4. Install the jacket attaching bolts. Tighten: Tighten the bolts to 11 N.m (97 lb in).
  5. Install the steering column mounting bolts. Tighten: Tighten the RH bolt to 25 N.m (18 lb ft). Tighten the LH bolt to 25 N.m (18 lb ft).
  6. Install the ignition lock cylinder case. Refer to «Ignition Lock Cylinder Case Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  7. Install the SIR coil module assembly. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement»(/chevrolet/cobalt/i-2004-2010/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
  8. Install the column trim covers. Refer to «Steering Column Trim Covers Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .
  9. Install the steering wheel. Refer to «Steering Wheel Replacement»(/chevrolet/cobalt/i-2004-2010/remont/ignition-switchsteering-lock/#steering-wheel-steering-column) .

Alignment Procedure

  1. If available remove the yellow tab (2) and save for reassembly.
  2. Gently rotate the coil hub (1) clockwise until a slight tension is present.
  3. Count the number of revolutions, while gently rotating the coil hub (1) counter clockwise until a slight tension is present.
  4. Gently rotate the coil hub (1) clockwise one half of the previously counted revolutions.
  5. Rotate the coil hub as required to align the yellow tab (2).
  6. Install the yellow tab (2) into the coil hub. Use tape if the tab is unavailable.

Steering Wheel and Column Description and Operation

The steering wheel and column has 4 primary functions

  1. Vehicle steering
  2. Vehicle security
  3. Driver convenience
  4. Driver safety

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

  1. The ignition switch
  2. The steering column lock
  3. 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.

  1. The turn signal switch
  2. The hazard switch
  3. The headlamp dimmer switch
  4. The wiper/washer switch
  5. The horn pad/cruise control switch
  6. 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.

Special Tools

Special Tools Illustration Tool Number/ Description J 1859A Steering Wheel Puller J 42578 Steering Wheel Puller Legs

Scheme 7

Scheme 7: Special Tools
Scheme 7: Special Tools

See also:
• Testing for Intermittent Conditions and Poor Connections
• Connector Repairs
• Wiring Repairs
• Floor Shift Control Replacement
• Key and Lock Cylinder Coding
• Inflatable Restraint Steering Wheel Module Coil Replacement
• Fastener Notice
• Lifting and Jacking the Vehicle
• Tire and Wheel Removal and Installation
• Diagnostic System Check - Vehicle
• Scan Tool Does Not Power Up
• Programming Theft Deterrent System Components
• Battery Negative Cable Disconnect/Connect Procedure
• Fastener Tightening Specifications
• SIR Zone Identification Views
• Bezel Replacement - Instrument Panel (I/P) Cluster
• Steering Wheel and Column Description and Operation
• Lock System Does Not Unlock
• Lock System Does Not Lock
• Lock System Sticks in Start
• Key Cannot Be Removed in the Off Lock Position
• High Lock Effort
• Noise in Steering Column
• Looseness in Steering Column
• Column/Ignition Lock Schematics
• Steering Wheel and Column Connector End Views
• Fastener Tightening Specifications
• Ignition Can/Cannot Be Turned Off with Transmission in Any Gear
• Symptoms - Steering Wheel and Column
• Special Tools