Steering Wheel and Steering Column: Other GMC Sierra 1500

Circuit/System Verification

Ignition ON, observe the scan tool steering wheel controls (SWC) Switch Voltage parameter in the body control module (BCM) data list. Pressing the switch should read voltage present, and drop to 0 volts when released.

Repair Instructions

Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Steering Wheel Control Switch Assembly Replacement»(ref-238184-S30439351872006072400000)
2. «Control Module References»(ref-238179-S31191948712006072400000) for BCM replacement, setup, and programming

Ignition ON, observe the scan tool steering wheel controls (SWC) Switch Voltage parameter in the BCM data list. Pressing the switch should read voltage present, and drop to 0 volts when released.

Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Steering Wheel Control Switch Assembly Replacement»(ref-238184-S30439351872006072400000)
2. «Control Module References»(ref-238179-S31191948712006072400000) for BCM 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

Lock System Does Not Unlock

Steering Column Tilt Function Inoperative

Steering Column Tilt Function Inoperative

Lock System Does Not Lock

Lock System Does Not Lock

Lock System Sticks in Start

Lock System Sticks in Start

Ignition Key Cannot Be Removed from the Ignition Lock Cylinder

Ignition Key Cannot Be Removed from the Ignition Lock Cylinder

Ignition Key Cannot Turn or Sticks in Any Position

Ignition Key Cannot Turn or Sticks in Any Position

High Shift Effort

High Shift Effort

Looseness in Steering Column

Looseness in Steering Column

Tools Required

J 42640 Steering Column Anti-Rotation Pin

Scheme 34

Scheme 35

1. Install the J 42640 in the steering column lower access hole.
2. Mark the relationships of the following components: Mark the relationship of the bolt and clamp at both ends of the upper intermediate shaft. Mark the relationship of the upper intermediate shaft to the lower intermediate shaft.
3. Remove the nut and bolt from the lower shaft to upper shaft connection.
4. Remove the nut and bolt (1) from the upper shaft (2) to steering column connection.
5. Slide the intermediate shaft down, out of the steering column connection.
6. Remove the accelerator pedal position sensor. Refer to «Accelerator Pedal with Position Sensor Replacement»(ref-238175-S16954837272006072400000) or «Accelerator Pedal with Position Sensor Replacement»(ref-238175-S16954837272006072400000) in Engine Controls.
7. Slide the upper intermediate shaft towards the instrument panel, out of the lower intermediate shaft, and remove the shaft from the vehicle.

Scheme 36

1. Install the lower end of the upper intermediate shaft through the bulkhead, into the lower shaft.
2. Install the upper end of the upper intermediate shaft (2) to the steering column.
3. Install the bolt and nut (1) at the connection of the upper intermediate shaft to the steering column. Tighten: Tighten the nut to 62 N.m (46 lb ft).
4. Install the accelerator pedal position sensor. Refer to «Accelerator Pedal with Position Sensor Replacement»(ref-238175-S16954837272006072400000) or «Accelerator Pedal with Position Sensor Replacement»(ref-238175-S16954837272006072400000) in Engine Controls.
5. Install the bolt and nut at the connection of the upper intermediate shaft to the lower intermediate shaft. Tighten: Tighten the nut to 50 N.m (37 lb ft).
6. Remove the J 42640 from the steering column lower access hole.

J 42640 Steering Column Anti-Rotation Pin

J 42759 Ignition Switch Connector Release Tool. See Special Tools .

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1. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure (Single Battery)»(ref-238198-S11373134242006072400000) or «Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery)»(ref-238198-S42388157252006072400000) in Engine Electrical.
2. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
3. Remove the hush and knee bolster. Refer to «Knee Bolster Replacement»(ref-238186-S18945448682006072400000) in Instrument Panel, Gages, and Console.
4. Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(ref-238184-S21223629182006072400000) .
5. With the key installed, turn the key to the RUN position.
6. Install an allen wrench into the hole on top of the lock cylinder housing. Push down on the allen wrench to release the tab on the lock cylinder inside the lock cylinder housing.
7. Slide the lock cylinder out of the lock cylinder housing.
8. Disconnect the passlock and key buzzer from the lock cylinder housing.
9. Insert J 42759 into the lock cylinder housing to release the tabs on the ignition switch. See «Special Tools»(ref-238184-S11526239982006072400000) .
10. Pull the ignition switch out of the lock cylinder housing.
11. Disconnect the connector from the ignition switch.

Scheme 40

Scheme 41

1. Verify the alignment of the gear (1) in the ignition switch (2). If gear (1) is not in position shown, turn gear in ignition switch (2) until you reach the correct position.
2. Use a screwdriver to rotate the lock cylinder housing gear counterclockwise until it hits a stop.
3. Connect the connector to the ignition switch.
4. Insert the ignition switch into the lock cylinder housing. The tabs (2) on the ignition switch MUST be seated inside the lock cylinder housing (1) for proper installation.
5. Use a screwdriver to rotate the lock cylinder housing gear clockwise to the START position - allowing it to spring return into the RUN position.
6. Align the lock cylinder and install the lock cylinder into the lock cylinder housing.
7. Connect the passlock and key buzzer into the lock housing.
8. Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(ref-238184-S21223629182006072400000) .
9. Install the hush and knee bolster. Refer to «Knee Bolster Replacement»(ref-238186-S18945448682006072400000) in Instrument Panel, Gages, and Console.
10. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
11. Connect the negative battery cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure (Single Battery)»(ref-238198-S11373134242006072400000) or «Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery)»(ref-238198-S42388157252006072400000) in Engine Electrical.

J 1859-A Steering Wheel Puller. See Special Tools .

J-36541-A Steering Wheel Puller Adapter

J 42578 Steering Wheel Puller Legs. See Special Tools .

Scheme 42

1. Disable the supplemental inflatable restraint (SIR) system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
2. Remove the inflator module. Refer to «Horn Switch Replacement»(ref-238184-S36908204372006072400000) in SIR.
3. Remove the horn switch. Refer to «Horn Switch Replacement»(ref-238184-S36908204372006072400000) .
4. Make an alignment mark in order to note the relationship of the steering wheel to the steering shaft.
5. Remove the steering wheel nut.
6. Remove the steering wheel using: J 1859-A (1) with J-36541-A (2) or J 42578 (2). See «Special Tools»(ref-238184-S11526239982006072400000) .

Scheme 43

1. Align the marks made during the removal of the steering shaft and the steering wheel.
2. Install the steering wheel onto the steering shaft.
3. Install the steering wheel nut to the steering shaft. Tighten: Tighten the nut to 40 N.m (29 lb ft).
4. Install the horn switch. Refer to «Horn Switch Replacement»(ref-238184-S36908204372006072400000) .
5. Install the inflator module. Refer to «Inflatable Restraint Steering Wheel Module Replacement»(ref-238196-S37906233612006072400000) in SIR.
6. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.

Scheme 44

Scheme 45

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
2. Remove the upper and lower trim covers. Refer to «Steering Column Trim Covers Replacement»(ref-238184-S21223629182006072400000) .
3. Install the tilt lever onto the steering column tilt head assembly.
4. Use the tilt lever to tilt the column to the UP position.
5. Remove the tilt spring (1) from the steering column support assembly (2) and from the steering column tilt head assembly (3) by using the following procedure: Pry up the tilt spring (1) until a bulge occurs and most of the tilt spring tension is removed. Secure the tilt spring (1) with locking pliers. Continue prying up the tilt spring (1) until the tilt spring disengages from the post on the steering column support assembly (2) and from the steering column tilt head assembly (3).
6. Remove the spring guide (1) from the tilt spring (2).

Scheme 46

1. Use the tilt lever to tilt the column to the UP position.
2. Install the spring guide into the tilt spring.
3. Install the tilt spring (1) onto the steering column support assembly (2) and onto the steering column tilt head assembly by using the following procedure: Install the tilt spring (1) onto the steering column tilt head assembly. Install the tilt spring (1) onto the post on the steering column support assembly (2).
4. Install the upper and lower trim covers. Refer to «Steering Column Trim Covers Replacement»(ref-238184-S21223629182006072400000) .
5. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.

Scheme 47

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
2. Remove the turn signal cancel cam assembly. Refer to «Turn Signal Cancel Cam and Upper Bearing Thrust Washer»(ref-238184-S41578984922006072400000) .
3. Remove the turn signal and multifunction switch assembly only. Refer to «Multifunction, Turn Signal Switch Replacement»(ref-238184-S32217177022006072400000) .
4. Slide the turn signal switch housing off of the steering column shaft assembly.
5. Remove the tilt head housing and steering shaft as an assembly. Refer to «Lower Bearing and Steering Column Jacket Replacement (Column Shift Lean Shaft)»(ref-238184-S15549955992006072400000) or «Lower Bearing and Steering Column Jacket Replacement (Floor Shift Lean Shaft)»(ref-238184-S36957332762006072400000) .
6. Remove the tilt head from the steering shaft.

Turn Signal Cancel Cam and Upper Bearing Thrust Washer

Tools Required

1. J 23653-SIR Steering Column Lock Plate Compressor
2. J 42137 Cam Orientation Plate Adapter. See «Special Tools»(ref-238184-S11526239982006072400000) .

Scheme 48

Scheme 49

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
2. Remove the SIR coil. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement (Coil)»(ref-238196-S36179370052006072400000) or «Inflatable Restraint Steering Wheel Module Coil Replacement (Coil and Harness Assembly)»(ref-238196-S35104799792006072400000) in SIR.
3. Remove and discard the bearing retainer using J 23653-SIR and J 42137 . See «Special Tools»(ref-238184-S11526239982006072400000) .
4. If tilt column, remove the following parts from the steering column shaft assembly: The cam orientation plate (5) The turn signal cancel cam assembly (4) The upper bearing spring (3) The upper bearing inner race seat (2) The inner race (1)

Scheme 50

1. If tilt column, install the following parts onto the steering column shaft assembly: Lubricate the inner race (1) with GM P/N 12345718 (Canadian P/N 10953516). The inner race (1) The upper bearing inner race seat (2) The upper bearing spring (3) Lubricate the turn signal cancel cam assembly (4) with GM P/N 12377900 (Canadian P/N 10953529). The turn signal cancel cam assembly (4) onto the steering shaft assembly The cam orientation plate (5)
2. Install the new bearing retainer onto the steering shaft assembly.
3. Compress the cam orientation plate using J 23653-SIR and J 42137 . See «Special Tools»(ref-238184-S11526239982006072400000) .
4. Firmly seat the bearing retainer into the groove on the steering shaft assembly.
5. Remove J 23653-SIR .
6. Install the SIR coil. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement (Coil)»(ref-238196-S36179370052006072400000) or «Inflatable Restraint Steering Wheel Module Coil Replacement (Coil and Harness Assembly)»(ref-238196-S35104799792006072400000) in SIR.
7. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.

J 42640 Steering Column Anti-Rotation Pin

Scheme 51

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Scheme 53

1. Disable the supplemental inflatable restraint (SIR) system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
2. Remove the knee bolster. Refer to «Knee Bolster Replacement»(ref-238186-S18945448682006072400000) in Instrument Panel, Gages and Console.
3. Lock the steering column through the access hole in the lower trim cover using J 42640 .
4. Remove the body control module bracket. Do not disconnect the harness from the body control module. Refer to «Body Control Module Replacement»(ref-238179-S13881127862006072400000) in Computer/Integrating Systems.
5. Disconnect the transmission shift cable (1) from the column.
6. Disconnect the steering column electrical connectors.
7. Remove the wiring harness retaining pin (4) from the instrument panel.
8. Remove the upper intermediate shaft pinch bolt (1) from the steering column, and remove the shaft from the steering column.
9. Remove the nuts (1) from the knee bolster deflector.
10. Remove the nuts from the upper support brackets.
11. Remove the nuts from the lower support brackets.
12. Remove the steering column from the vehicle.

J 21854-01 Pivot Pin Remover

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Scheme 60

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
2. Remove the steering column from the vehicle. Refer to «Steering Column Replacement»(ref-238184-S42947104592006072400000) .
3. Remove the turn signal multifunction switch. Refer to «Multifunction, Turn Signal Switch Replacement»(ref-238184-S32217177022006072400000) .
4. Remove the ignition lock cylinder case. Refer to «Ignition Lock Cylinder Case Replacement»(ref-238184-S41947327112006072400000) .
5. Remove the tilt spring assembly only. Refer to «Tilt Spring Replacement»(ref-238184-S36712550012006072400000) .
6. Remove the linear shift and the automatic shift lock control. Refer to «Linear Shift Assembly Replacement»(ref-238184-S42867765142006072400000) .
7. Inspect the steering column for accident damage. Refer to «Steering Column Accident Damage Inspection»(ref-238184-S17718177392006072400000) .
8. Remove the sensor retainer (1) from the steering column jacket assembly (3).
9. Remove the steering shaft position sensor (2) from the steering column jacket assembly (3).
10. Gently pull the adapter and bearing assembly (1) from the steering shaft assembly. If the cage and balls separate from the adapter and bearing assembly, you may install them back together in the installation procedure.
11. Remove the 2 pivot pins (3) from the steering column tilt head assembly (1) by using J 21854-01 .
12. Install the tilt lever into the steering column tilt head assembly (1).
13. Pull back on the tilt lever and at the same time pull the steering column tilt head assembly (1) down and away from the steering column.
14. Remove the steering column tilt head assembly (1) with the steering column shaft assembly from the steering column jacket assembly (2).
15. Remove the tilt lever.
16. Remove the steering column shaft assembly (2) from the steering column tilt head assembly (1).
17. Remove the upper bearing assembly.
18. Remove the 4 TORX® head screws (2) from the steering column support assembly (1).
19. Discard the 4 TORX® head screws.
20. Remove the steering column support assembly (1) from the steering column jacket assembly.

Scheme 61

Scheme 62

1. Attach the steering column support assembly (1) to the steering column jacket assembly (3) with 4 TORX® head screws (2). Tighten: Tighten the screws to 17 N.m (13 lb ft).
2. Install the upper bearing assembly.
3. Install the steering column shaft assembly (2) into the steering column tilt head assembly (1).
4. Install the steering column shaft assembly with the steering column tilt head assembly (1) into the steering column jacket assembly (2).
5. Maneuver the tilt knob and push the steering column tilt head assembly (1) up towards the steering column in order to lock the steering wheel lock shoes in place.
6. Lubricate the pivot pins (1) with GM P/N 12346293 (Canadian P/N 992723).
7. Firmly seat each pivot pin (1) into the steering column tilt head assembly.
8. Stake the steering column support assembly in 3 locations around each pivot pin.
9. If necessary, install the balls (2) into the cage (3).
10. Install the race (1) into the ball and cage assembly.
11. Install the race, cage and balls into the adapter and bearing assembly (2).
12. Install the adapter and bearing assembly (1) onto the steering column jacket assembly by performing the following steps: Align the tab on the adapter and bearing assembly (1) with the slot in the steering column jacket assembly. Push the adapter and bearing assembly (1) onto the steering column shaft assembly until the tab snaps into the slot.
13. Install the steering shaft position sensor (2) onto the steering column jacket assembly (3).
14. Install the sensor retainer (1) onto the steering column jacket assembly (3).
15. Install the linear shift and the automatic transmission shift lock control only. Refer to «Linear Shift Assembly Replacement»(ref-238184-S42867765142006072400000) .
16. Install the tilt spring only. Refer to «Tilt Spring Replacement»(ref-238184-S36712550012006072400000) .
17. Install the turn signal multifunction switch. Refer to «Multifunction, Turn Signal Switch Replacement»(ref-238184-S32217177022006072400000) .
18. Install the ignition lock cylinder case. Refer to «Ignition Lock Cylinder Case Replacement»(ref-238184-S41947327112006072400000) .
19. Install the steering column into the vehicle. Refer to «Steering Column Replacement»(ref-238184-S42947104592006072400000) .
20. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.

J 21854-01 Pivot Pin Remover

Scheme 63

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
2. Remove the steering column from the vehicle. Refer to «Steering Column Replacement»(ref-238184-S42947104592006072400000) .
3. Remove the turn signal multifunction switch. Refer to «Multifunction, Turn Signal Switch Replacement»(ref-238184-S32217177022006072400000) .
4. Remove the ignition lock cylinder case. Refer to «Ignition Lock Cylinder Case Replacement»(ref-238184-S41947327112006072400000) .
5. Remove the tilt spring only. Refer to «Tilt Spring Replacement»(ref-238184-S36712550012006072400000) .
6. Inspect the steering column for accident damage. Refer to «Steering Column Accident Damage Inspection»(ref-238184-S17718177392006072400000) .
7. Gently pull the adapter and bearing assembly (1) from the steering shaft assembly. If the cage and balls separate from the adapter and bearing assembly, you may install them back together in the installation procedure.
8. Remove the 2 pivot pins (3) from the steering column tilt head assembly (1) by using J 21854-01 .
9. Install the tilt knob into the steering column tilt head assembly (1).
10. Pull back on the tilt knob and at the same time pull the steering column tilt head assembly (1) down and away from the steering column.
11. Remove the steering column tilt head assembly (1) with the steering shaft assembly from the steering column support assembly (2).
12. Remove the tilt knob.
13. Remove the steering shaft assembly (2) from the steering column tilt head assembly (1).
14. Remove the upper bearing assembly.
15. Remove the 4 TORX® head screws (2) from the steering column support assembly (1).
16. Discard the 4 TORX® head screws.
17. Remove the steering column support assembly (1) from the steering column jacket assembly.

J 42640 Steering Column Anti-Rotation Pin

Scheme 64

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) in SIR.
2. Lock the steering column through the access hole in the lower trim cover using J 42640 .
3. Remove the steering column from the vehicle. Refer to «Steering Column Replacement»(ref-238184-S42947104592006072400000) .
4. Remove the sensor connector by using a suitable tool in order to pull the connector down around the right side of the steering column for accessibility.
5. Remove the sensor retainer from the steering shaft.
6. If reusing the sensor (1), remove the position sensor by pulling the sensor straight out from the bearing adapter (3) until the sensor is almost off the steering shaft (2). Install a pin into the sensor before removing from the steering shaft (2). Do not remove the pin until the sensor is re-installed.
7. If replacing the sensor (1), remove the sensor by pulling the sensor straight out from the bearing adapter (3) and off the steering shaft.

Scheme 65

1. If reusing the sensor, with the pin still installed, align the sensor onto the steering shaft (2) and into the bearing adapter (3).
2. Install the sensor onto the steering shaft (2) and into the bearing adapter (3).
3. The sensor must be set to approximately 3 mm gap between the sensor and the bearing adapter.
4. Install the sensor connector.
5. Remove the pin from the sensor.
6. Install the sensor retainer onto the steering shaft.
7. Install the steering column to the vehicle. Refer to «Steering Column Replacement»(ref-238184-S42947104592006072400000) .
8. Remove J 42640 from the steering column.
9. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(ref-238196-S42401173072006072400000) .

Scheme 66

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1. Verify the type of steering wheel position sensor.
2. From the technicians point of view, the FRONT of the sensor (1) connector will be on the right.
3. Remove the connector from the sensor.
4. Remove the sensor (1) from the adapter and bearing assembly.
5. To install the sensor, proceed to step 1 in the installation section.
6. From the technicians point of view, the FRONT of the sensor will have: A foam ring (2) A pin hole (1) for centering the pin. Note the location of the pin hole. A flush rotor flange cuff (4)
7. Make an alignment mark on the flush rotor flange cuff (3).
8. Remove the connector from the sensor.
9. Remove the sensor from the adapter and bearing assembly.
10. To install the sensor, proceed to step 5 in the installation procedure.
11. From the technicians point of view, the FRONT of the sensor will have: A raised rotor flange cuff (3) An alignment mark (2) on the rotor flange cuff (3) for installation A pin hole (1) for the centering pin. Note the location of the pin hole.
12. Remove the connector from the sensor.
13. Remove the sensor from the adapter and bearing assembly.
14. To install the sensor, proceed to step 9 in the installation procedure.
15. From the technicians point of view, the FRONT of the sensor will have: A raised rotor flange cuff (3) An alignment mark (2) on the rotor flange cuff (3) for installation A pin hole (1) for the centering pin. Note location of the pin hole. A sensor clip in FRONT of the sensor
16. Remove the connector from the sensor.
17. Remove the sensor clip from the sensor.
18. Remove the sensor from the adapter and bearing assembly.
19. To install the sensor, proceed to step 13 in the installation procedure.
20. From the technicians point of view, the FRONT of the sensor will have: A flush rotor flange cuff (3) A pin hole (1) for the centering pin. Note the location of the pin hole. An alignment mark (2) on the flush rotor flange cuff (3) for installation
21. Remove the connector from the sensor.
22. Remove the sensor from the adapter and bearing assembly.
23. To install the sensor, proceed to step 17 in the installation procedure.
24. From the technicians point of view, the FRONT of the sensor will have: A flush rotor flange cuff (4) A pin hole (2) for the centering pin-Note the location of the pin hole. An alignment mark (3) on the flush rotor flange cuff (4) for installation A foam ring (1)
25. Remove the connector from the sensor.
26. Remove the sensor from the adapter and bearing assembly.
27. To install the sensor, proceed to step 21 in the installation procedure.

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1. If installing a new sensor, it will come with a pin installed in the sensor. Do not remove the pin until the sensor is seated.
2. From the technicians point of view, the FRONT of the sensor (1) connector will be on your right. From the technicians point of view, the BACK of the sensor (2) connector will be on your left.
3. Looking at the FRONT of the sensor, align the sensor with the steering shaft and install into the adapter and bearing assembly.
4. Install the connector to the sensor.
5. From the technicians point of view, the FRONT of the sensor will have: A foam ring (4) A pin hole (7) for the centering pin-Note the location of the pin hole. A flushed rotor flange cuff (6) An alignment mark (5) for installation
6. From the technicians point of view, the BACK of the sensor will have: Double D flats (1) A foam ring (3) An alignment tab (2) for installing into the adapter and bearing assembly A view of the inside of the connector
7. Looking at the FRONT of the sensor, align the sensor with the steering shaft and install into the adapter and bearing assembly.
8. Install the connector to the sensor.
9. From the technicians point of view, the FRONT of the sensor will have: A pin hole (3) for the centering pin-Note location of the pin hole. A raised rotor flange cuff (5) An alignment mark (4) for installation
10. From the technicians point of view, the BACK of the sensor will have: Double D flats (1) An alignment tab (2) for installing into the adapter and bearing assembly
11. Looking at the FRONT of the sensor, align the sensor with the steering shaft and install into the adapter and bearing assembly.
12. Install the connector to the sensor.
13. From the technicians point of view, the FRONT of the sensor will have: A pin hole (2) for the centering pin- Note the location of the pin hole. A raised rotor flange cuff (4) An alignment mark (3) for installation
14. From the technicians point of view, the BACK of the sensor will have an alignment tab (1) for installation. This sensor does not have double D flats.
15. Looking at the FRONT of the sensor, align the sensor with the steering shaft and install into the adapter and bearing assembly.
16. Install the connector to the sensor.
17. From the technicians point of view, the FRONT of the sensor will have: A pin hole (2) for the centering pin-Note the location of the pin hole. A flush rotor flange cuff (4) An alignment mark (3) for installation
18. From the technicians point of view, the BACK of the sensor will have an alignment tab (1) for installation. This sensor does not have double D flats.
19. Looking at the FRONT of the sensor, align the sensor with the steering shaft and install into the adapter and bearing assembly.
20. Install the connector to the sensor.
21. From the technicians point of view, the FRONT of the sensor will have: A pin hole (3) for the centering pin-Note location of the pin hole. A flush rotor flange cuff (5) An alignment mark (4) for installation A foam ring (6)
22. From the technicians point of view, the BACK of the sensor will have: Double D flats (1) An alignment tab (2) for installing into the adapter and bearing assembly
23. Looking at the FRONT of the sensor, align the sensor with the steering shaft and install into the adapter and bearing assembly.
24. Install the connector to the sensor.

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1. Verify the following conditions before centering the SIR coil: The wheels on the vehicle are straight ahead. The block tooth (1) of the steering shaft assembly is in the 12 o'clock position. The ignition switch is in the LOCK position.
2. If the front (5) of the SIR coil has a centering window (4), and the back side (2) includes a spring service lock (1), perform the following steps: Hold the SIR coil with the face up. While depressing the spring service lock, rotate the coil hub clockwise until the coil ribbon stops. Rotate the coil hub slowly, counterclockwise, until the centering window appears yellow and both arrows (3) line up. Release spring service lock between the locking tab. The SIR coil is now centered. Align the centered SIR coil with the horn tower and slide onto the steering shaft assembly.
3. If the front (4) of the SIR coil has a centering window (3), and the back side (1) includes NO spring service lock, perform the following steps: Hold the SIR coil with the face up. Rotate the coil hub clockwise until the coil ribbon stops. Rotate the coil hub slowly, counterclockwise until the centering window appears yellow and both arrows (2) line up. This is the CENTER position. While holding the coil hub in the CENTER position, align the SIR coil with the horn tower and slide onto the steering shaft assembly.
4. If the front side (3) of the SIR coil has NO centering window, but the back side (2) includes a spring service lock (1), perform the following steps: Hold the SIR coil with the back side up. While depressing the spring service lock, rotate the coil hub in the direction of the arrow (4) until the coil ribbon stops. Still pressing the spring service lock, rotate the coil hub in the opposite direction 21/2 revolutions. Release the spring service lock between locking tabs. The SIR coil is now centered. Align the centered SIR coil with the horn tower and slide onto the steering shaft assembly.
5. If the front side (2) of the SIR coil has NO centering window, and the back side (1) includes NO spring service lock, perform the following steps: Hold the SIR coil with the face up. Rotate the coil hub in the direction of the arrow until the coil ribbon stops. Rotate the coil hub, slowly, counterclockwise, for 21/2 revolutions. This is the CENTER position. While maintaining the coil hub in the CENTER position, align the centered SIR coil with the horn tower and slide onto the steering shaft assembly.
6. If double wire harness strap is installed onto the wire harness assembly and column, you must route the wires up against the steering column. One wire harness strap will surround one lead from the coil to the steering column. The other wire harness strap will surround all leads to the steering column.

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 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

1. The ignition switch
2. The manual transmission 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 redundant radio/entertainment system controls
7. The tilt or tilt/telescoping functions
8. The navigation/OnStar® features
9. 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.