Steering Wheel & Steering Column Cadillac STS I

Fastener Tightening Specifications

Fastener Tightening Specifications

Steering Wheel and Column Schematic Icons

Steering Wheel and Column Schematic Icons Icon Icon Definition CAUTION: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling Zones. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs

Scheme 1

Scheme 2

Scheme 3

Scheme 4

Scheme 5

Scheme 6

Steering Wheel and Column Connector End Views

Heated Steering Wheel Control Module C1 - Heated Steering Wheel Connector End (KA9) Connector Part Information 12092162 4-Way F Metri-Pack 150 Series (BLK) Pin Wire Color Circuit No. Function A YE - Steering Wheel Heating Element Supply Voltage B GY - Heated Steering Wheel Temperature Sensor Signal C-D BK 350 Ground

Heated Steering Wheel Control Module C2 - Heated Steering Wheel Switch Connector End (KA9) Connector Part Information 50-57-9403 3-Way F Molex (BLK) Pin Wire Color Circuit No. Function 1 BK 350 Ground 2 RD/BK - Indicator Control 3 GN - Heated Steering Wheel Switch Supply Voltage

Heated Steering Wheel Control Module C3 Connector End (KA9) Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BLK) Pin Wire Color Circuit No. Function A OG 341 Ignition 3 Voltage B BK 350 Ground

Steering Column Lock Control Module C1 Connector End (w/UA2) Connector Part Information OEM: 173850-1 Service: 8-Way F 070 (WH) Terminal Part Information Terminal: Terminal Seal: Release Tool: Core Crimp: Insulation Crimp: Test Probe: Pin Wire Color Circuit No. Function 1 D-GN/WH 1932 Shift Select Switch Park Signal 2 RD/WH 1640 Battery Positive Voltage 3 WH 5741 Steering Column Lock Module Lock Enable Relay Control 4 BK/WH 351 Signal Ground 5 PK 1239 Run/Crank Ignition 1 Voltage 6 - - Not Used 7 D-GN 5060 Low Speed GMLAN Serial Data

Steering Column Lock Control Module C2 Connector End (w/UA2) Connector Part Information OEM: 12064760 Service: 4-Way F Metri-Pack 150 Series (BK) Terminal Part Information Terminal: Terminal Seal: Release Tool: Core Crimp: Insulation Crimp: Test Probe: Pin Wire Color Circuit No. Function A L-GN 1601 Steering Column Lock Signal B BK 150 Ground C PU 1604 Steering Column Unlock Supply Voltage D OG 1603 Steering Column Lock Supply Voltage

Telescoping Actuator C1 Connector End Connector Part Information OEM: 12020556 Service: 12101820 2-Way F Metri-Pack 480 Series (BK) Terminal Part Information Terminal: Terminal Seal: Release Tool: Core Crimp: Insulation Crimp: Test Probe: Pin Wire Color Circuit No. Function A TN 287 Steering Column Telescope Motor Control - Reverse B OG 2098 Steering Column Telescope Motor Control - Forward

Telescoping Actuator C2 Connector End Connector Part Information OEM: 12047781 Service: 3-Way F Metri-Pack 150 Series (BK) Terminal Part Information Terminal: Terminal Seal: Release Tool: Core Crimp: Insulation Crimp: Test Probe: Pin Wire Color Circuit No. Function A TN 782 Memory Seat/Mirror Sensor Low Reference B GY 788 Memory Mirror Position Sensor 5-Volt Reference C OG 2153 Steering Column Telescope Motor Signal

Tilt/Telescope Switch Connector End Connector Part Information OEM: 12064763 Service: 12101876 6-Way M Metri-Pack 150 Series (GY) Terminal Part Information Terminal: Terminal Seal: Release Tool: Core Crimp: Insulation Crimp: Test Probe: Pin Wire Color Circuit No. Function A GY 2096 Steering Column Tilt and Telescope Up Switch Signal B YE 2097 Steering Column Tilt and Telescope Down Switch Signal C OG 2095 Steering Column Tilt and Telescope Rearward Switch Signal D PK 2094 Steering Column Tilt and Telescope Forward Switch Signal E - - Not Used F RD/WH 1640 Battery Positive Voltage

Tilt Actuator C1 Connector End Connector Part Information OEM: 12052110 Service: 12102768 2-Way F Metri-Pack 480 Series (BK) Terminal Part Information Terminal: Terminal Seal: Release Tool: Core Crimp: Insulation Crimp: Test Probe: Pin Wire Color Circuit No. Function A RD 2111 Steering Column Tilt Motor Up Control B BN 2112 Steering Column Tilt Motor Down Control

Tilt Actuator C2 Connector End Connector Part Information OEM: 12065422 Service: 3-Way F Metri-Pack 150 Series (NA) Terminal Part Information Terminal: Terminal Seal: Release Tool: Core Crimp: Insulation Crimp: Test Probe: Pin Wire Color Circuit No. Function A TN 782 Memory Seat/Mirror Sensor Low Reference B GY 788 Memory Mirror Position Sensor 5-Volt Reference C OG 2154 Steering Column Tilt Motor Signal

Diagnostic Starting Point - Steering Column

Begin the system diagnosis with the Diagnostic System Check - Vehicle in Vehicle DTC Information. The Diagnostic System Check will provide the following information

1. The identification of the control module which commands the system
2. The ability of the control module to communicate through the serial data circuit
3. The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the diagnostic system check will identify the correct procedure for diagnosing the system and where the procedure is located.

Scan Tool Output Controls

Scan Tool Output Controls

Scan Tool Data List

IPC Scan Tool Data List

DPM Scan Tool Data List in Seats

BCM Scan Tool Data List

SCLCM Scan Tool Data Definitions

The steering column lock control module (SCLCM) Scan Tool Data Definitions contains a brief description of all steering column related SCLCM parameters available on the scan tool.

DPM Scan Tool Data Definitions

The driver position module (DPM) Scan Tool Data Definitions contains a brief description of all steering column related DPM parameters available on the scan tool.

BCM Scan Tool Data Definitions

The Body control module (BCM) Scan Tool Data Definitions contains a brief description of all steering column related BCM parameters available on the scan tool.

Circuit Description

The steering column lock control module (SCLCM) receives a discrete input from the automatic transmission shift lever and a serial data input from the instrument panel module (IPM). When the shift lever is in the park position, the switch internal to the automatic transmission shift lever closes sending a high input to the SCLCM. The SCLCM compares the serial data input to the discrete input. If the SCLCM receives a column lock enable command from the IPM and the transmission shift select switch park signal circuit is low, DTC B0005 will set.

DTC Descriptor

This diagnostic procedure supports the following DTC

DTC B0005 In Park Switch

This vehicle has DTCs which include DTC symptoms. For more information on DTC symptoms, refer to DTC Symptom Description in Vehicle DTC Information.

DTC B0005

Conditions for Running the DTC

1. DTCs B1327 or B1328 are not set as current.
2. The condition must be present for 300 ms.
3. The condition must be present for 5 consecutive ignition cycles.

Conditions for Setting the DTC

1. DTC B0005 will set when the SCLCM receives a column lock enable command from the IPM and the transmission shift select switch park signal circuit is low.
2. There is a short to ground or an open in the transmission shift select switch park signal circuit.

Action Taken When the DTC Sets

1. DTC B0005 is stored in the SCLCM memory.
2. The SCLCM will command the driver information center (DIC) to display the Service Column Lock Now message.

Conditions for Clearing the MIL/DTC

1. The SCLCM no longer detects a malfunction in the transmission shift select park signal circuit.
2. A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.

DTC B0005

The steering column lock control module (SCLCM) controls the column lock motor using an internal lock relay, an internal unlock relay, and an internal lock enable relay. The lock and unlock relays provide a low input to the column lock motor. When the column needs to be locked, the lock enable relay will energize the lock relay, which provides a high input to the lock side of the motor, energizing the motor to lock the steering column.

When the SCLCM receives the low input from the instrument panel module (IPM), the internal lock enable relay is energized and provides a high input to the lock side of the column lock motor. The unlock side of the column lock motor is grounded through the internal unlock relay within the SCLCM.

This diagnostic procedure supports the following DTC

DTC B2510 Steering Column Lock Solenoid/Motor Unlock Circuit

This vehicle has DTCs which include DTC symptoms. For more information on DTC symptoms, refer to DTC Symptom Description in Vehicle DTC Information.

DTC B2510

1. DTCs B1327 or B1328 are not set as current.
2. The condition must be present for 300 ms.

This DTC will set if there is an open, short to ground, or short to voltage on the SCLCM unlock relay circuit.

1. Stores a DTC B2510 in the SCLCM memory
2. The SCLCM will command the driver information center (DIC) to display the Service Column Lock Now message.

1. The SCLCM no longer detects a malfunction in the unlock relay circuit.
2. A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.

DTC B2510

The steering column lock control module (SCLCM) controls the column lock motor using an internal lock relay, an internal unlock relay, and an internal lock enable relay. The lock and unlock relays provide a low input to the column lock motor. When the column needs to be locked, the lock enable relay will energize the lock relay, which provides a high input to the lock side of the motor, energizing the motor to lock the steering column.

When the SCLCM receives the low input from the instrument panel module (IPM), the internal lock enable relay is energized and provides a high input to the lock side of the column lock motor. The unlock side of the column lock motor is grounded through the internal unlock relay within the SCLCM. The column lock motor will send an input back to the SCLCM indicating the motor is energized for the locked position. This results in the locking of the steering column.

This diagnostic procedure supports the following DTC

DTC B2515 Steering Column Lock Solenoid/Motor Feedback Circuit

This vehicle has DTCs which include DTC symptoms. For more information on DTC symptoms, refer to DTC Symptom Description in Vehicle DTC Information.

DTC B2515

1. DTCs B0005, B1000, B1325, or B2907 are not set as current.
2. The condition must be present for 300 ms.

1. This DTC will set when the SCLCM checks for a valid feedback signal, but the feedback is not what was expected. This indicates a failure in the motor feedback switch/motor circuit.
2. The condition must occur 5 consecutive times for this DTC to set.

1. Stores a DTC B2515 in the SCLCM memory
2. The SCLCM will command the driver information center (DIC) to display the Service Column Lock Now message.

1. The SCLCM no longer detects a malfunction in the motor feedback switch/motor circuit.
2. A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.

Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 2: During the steering column electronic lock operation, listen for an audible click. Repeat the commands as necessary.
2. 3: This test determines if the steering column electronic lock feedback circuit is operating properly.

DTC B2515

The memory seat module (MSM) receives ground inputs from contacts inside the tilt/telescoping switch. The MSM then supplies battery voltage to the tilt motor up or down circuit, or the telescope motor in or out circuit depending on which direction of movement is requested. Both motors are reversible and voltage is applied to either circuit to accomplish movement in opposite directions.

DTC Descriptors

This diagnostic procedure supports the following DTCs

1. DTC 2853 Telescope Forward Switch Circuit High
2. DTC 2858 Telescope Rearward Switch Circuit High
3. DTC 2873 Tilt Up Switch Circuit High
4. DTC 2878 Tilt Down Switch Circuit High

The MSM is ON.

The MSM detects a switch input for more than 30 consecutive seconds after movement of the motor in the requested direction has stopped.

1. The motor that is being driven by the failed switch will be deactivated.
2. Memory recall functions will be disabled.

Conditions for Clearing the DTC

1. A current DTC will clear when the failed switch input is no longer active.
2. A history DTC will clear after 100 ignition cycles.

Diagnostic Aids

An intermittently stuck switch can cause this DTC to set. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

DTC B2853, B2858, B2873, or B2878

The telescoping steering column position settings are stored in the driver position module (DPM). The DPM measures and stores the steering column position by using a position sensor, which is an internal part of the telescoping actuator. The DPM provides the position sensor with a 5-volt reference and ground. The DPM monitors the position sensor signal voltage, which ranges from 0.25-4.75 volts depending on the steering column position. The steering column position sensor becomes active only when the DPM detects a steering column switch input via a GMLAN message from the IPM.

This diagnostic procedure supports the following DTC

DTC B2860 Telescope Position Sensor

The steering column position sensor signal to the DPM, is less than 0.25 volt or greater than 4.75 volts for 2 seconds or more.

1. A history DTC B2860 is stored in the DPM memory.
2. This DTC can only be set as a history code even if the malfunction is current.
3. No driver warning message will be displayed for this DTC.
4. The memory operation/function of the faulted position sensor is disabled.

The steering column position sensor input to the DPM is within 0.25 volt to 4.75 volts for 2 seconds or more.

1. If the DTC does not reset after the code is cleared, the problem may be intermittent. Perform the tests shown while moving related wiring and connectors. This can often cause the malfunction to occur. Refer to «Testing for Intermittent Conditions and Poor Connections»(/cadillac/sts/i-2004-2007/remont/body-electrical/#wiring-systems-electrical-power-management-introduction__testing-for-intermittent-conditions-and-poor) in Wiring Systems.
2. The following conditions may also cause an intermittent malfunction: There is an intermittent open, short to ground, or short to voltage in steering column telescope motor signal circuit. The steering column position sensor is open or shorted internally.
3. If the DPM is unable to determine the correct steering column position, limited manual operation of the telescoping steering column will be functional, but the DPM will be unable to recall the correct memory settings.
4. Using a scan tool, select DPM data display and monitor the Column Position Feedback data. Operate the steering column in both directions while monitoring the position sensor data. The voltage should range from 0.25 volt to 4.75 volts depending on the steering column position.

The numbers below refer to the step numbers on the diagnostic table.

1. 3: This step tests for the proper operation of the circuit in the high voltage range.
2. 4: This step tests for the proper operation of the circuit in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.
3. 5: This step tests for a short to ground in the 5-volt reference circuit.

DTC B2860

The driver position module (DPM) determines the position of the steering column based on inputs received from position sensor built into the tilt actuator. The DPM supplies a 5-volt reference and a ground to the sensor and monitors the column position via a tilt position signal circuit.

This diagnostic procedure supports the following DTC

DTC B2880 Tilt Position Sensor

DTC B1327 is not set as current.

This DTC will set as current when the tilt actuator circuit voltage is less than 0.25 volt or greater than 4.75 volts for 2 seconds.

The DPM will not allow the affected motor to work during memory recall and/or easy exit operations. However, the motor will still operate for manual switch positioning.

This DTC will clear from current status when the voltage is greater than 0.25 volt or less than 4.75 volts for 2 seconds.

DTC B2880

The steering column lock control module (SCLCM) controls the steering column lock motor. The SCLCM monitors the voltage on the lock motor control circuits. If the voltage on a control circuit is not the same as what the SCLCM is commanding, DTC B2907 will set.

This diagnostic procedure supports the following DTC

DTC B2897 Steering Column Lock Solenoid/Motor Lock Circuit

This vehicle has DTCs which include DTC symptoms. For more information on DTC symptoms, refer to DTC Symptom Description in Vehicle DTC Information.

DTC B2897

1. DTCs B1327 or B1328 are not set as current.
2. The condition must be present for 300 ms.

This DTC will set if the SCLCM lock relay circuit has an open, short to ground, or short to voltage.

1. Stores a DTC B2897 in the SCLCM memory.
2. The SCLCM will command the Service Column Lock Now to turn ON in the driver information center (DIC).

1. The SCLCM no longer detects a malfunction in the SCLCM lock relay circuit.
2. A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.

DTC B2897

The steering column lock control module (SCLCM) receives an input from the ignition 1 relay. When the body control module (BCM) goes to the off power mode then a low input is sent to the SCLCM.

This diagnostic procedure supports the following DTC

DTC B2907 Steering Column Lock Solenoid/Motor Enable Relay Circuit

This vehicle has DTCs which include DTC symptoms. For more information on DTC symptoms, refer to DTC Symptom Description in Vehicle DTC Information.

DTC B2907

1. DTCs B1327 or B1328 are not set as current.
2. The condition must be present for 300 ms.

When the SCLCM is locking the column but no input has been received on the steering column lock enable relay circuit from the BCM.

1. Stores a DTC B2907 in the SCLCM memory
2. Stores a DTC B2907.01 in the BCM memory for a short to battery in the steering column lock enable relay circuit
3. Stores a DTC B2907.06 in the BCM memory for an open or a short to ground in the steering column lock enable relay circuit
4. The SCLCM will command the Service Column Lock Now to turn ON in the driver information center (DIC).

1. When the SCLCM is locking, the column and ground has been received on the steering column lock enable relay circuit for 300 ms.
2. A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.
3. Use a scan tool.

DTC B2907

The steering column lock control module (SCLCM) will unlock the steering column if the power mode is ON and the SCLCM and instrument panel module (IPM) passwords match. If the SCLCM and IPM passwords do not match, the DTC B2910 will set.

This diagnostic procedure supports the following DTC

DTC B2910 Steering Column Lock Password Incorrect

This vehicle has DTCs which include DTC symptoms. For more information on DTC symptoms, refer to DTC Symptom Description in Vehicle DTC Information.

DTC B2910

1. DTCs B1327 or B1328 are not set as current.
2. The condition must be present for 300 ms.

This DTC will set if the SCLCM password does not match the IPM password.

1. The SCLCM stores a DTC B2910 in memory.
2. The SCLCM will command the driver information center (DIC) to display the Service Column Lock Now message.

The stored SCLCM password matches the password from the IPM.

DTC B2910

Symptoms - Steering Wheel and Column

1. Refer to «Diagnostic Starting Point - Vehicle»(/cadillac/sts/i-2004-2007/remont/oem-general-information/#vehicle-dtc-information__diagnostic-starting-point-vehicle) in Vehicle DTC Information There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to «Steering Wheel and Column Description and Operation»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the tilt/telescoping steering column or the steering wheel theft deterrent lock system. Refer to «Checking Aftermarket Accessories»(/cadillac/sts/i-2004-2007/remont/body-electrical/#wiring-systems-electrical-power-management-introduction__checking-aftermarket-accessories) in Wiring Systems.
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Symptom List

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

1. «Steering Column Tilt/Telescoping Inoperative»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column)
2. «Steering Column Does Not Tilt Up/Down»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-column-does-not-tilt-updown)
3. «Steering Column Does Not Telescope In/Out»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-column-does-not-telescope-inout)
4. «Service Column Lock Indicator Always On»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__service-column-lock-indicator-always-on)
5. «Service Column Lock Indicator Inoperative»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__service-column-lock-indicator-inoperative)
6. «Noise in Steering Column»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__noise-in-steering-column)
7. «Looseness in Steering Column»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__looseness-in-steering-column)
8. «Heated Steering Wheel Inoperative»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__heated-steering-wheel-inoperative)
9. «Heated Steering Wheel Indicator Malfunction»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__heated-steering-wheel-indicator-malfunction)

The numbers below refer to the step numbers on the diagnostic table.

1. 5: This step refers to the circuit with the MEM T&T 10A fuse.
2. 7: This step refers to the circuit with the PWR T&T 30A fuse.
3. 8: If either the tilt actuator or the telescope actuator displays Motor Current on the scan tool Data Display, as less than 0 amps and/or more than 10 amps in this step, go to the applicable chart for that actuator being inoperative.
4. 9: This step refers to the circuit with the PWR T&T 30A fuse.

Steering Column Tilt/Telescoping Inoperative

Steering Column Does Not Tilt Up/Down

Steering Column Does Not Tilt Up/Down

Steering Column Does Not Telescope In/Out

Steering Column Does Not Telescope In/Out

Steering Column Tilt Function Inoperative

Steering Column Tilt Function Inoperative

Service Column Lock Indicator Always On

Service Column Lock Indicator Always On

Service Column Lock Indicator Inoperative

Service Column Lock Indicator Inoperative

Heated Steering Wheel Inoperative

Heated Steering Wheel Inoperative

Heated Steering Wheel Indicator Malfunction

Heated Steering Wheel Indicator Malfunction

Noise in Steering Column

Noise in Steering Column

Looseness in Steering Column

Looseness in Steering Column

Removal Procedure

1. Remove the steering column. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
2. Remove the intermediate shaft seal from the mod plate.

Installation Procedure

1. Install the intermediate shaft seal to the mod plate, ensuring the seal between the intermediate shaft seal and mod plate.
2. Install the steering column. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
3. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the steering column. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
3. Remove the upper intermediate shaft to steering column retaining bolt.
4. Remove the upper intermediate shaft from the steering column.

1. Install the upper intermediate shaft to the steering column as noted during removal.
2. Install the upper intermediate shaft to the steering column retaining bolt. Tighten: Tighten the bolt to 48 N.m (35 lb ft).
3. Install the steering column. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
4. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

Tools Required

J 42640 Steering Column Anti-Rotation Pin

1. Turn the steering wheel so that the front wheels are pointing straight ahead.
2. Install the J 42640 through the access hole in the lower steering column trim cover in order to lock the steering column.
3. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/sts/i-2004-2007/remont/hoistjack/#general-information) in General Information.
4. Remove the upper to center intermediate shaft retaining bolt.
5. Remove the lower intermediate shaft to the power steering gear retaining bolt.
6. Disconnect the lower intermediate shaft from the power steering gear.
7. Disconnect the center intermediate shaft from the upper intermediate shaft
8. Remove the center intermediate shaft with the lower intermediate shaft attached.
9. Remove the lower to center intermediate shaft retaining bolt.
10. Remove the center intermediate shaft from the lower intermediate shaft.

1. Install the lower intermediate shaft to the upper intermediate shaft.
2. Install the lower to center intermediate shaft retaining bolt. Tighten: Tighten the bolt to 30 N.m (23 lb ft).
3. Connect the center intermediate shaft to the upper intermediate shaft.
4. Install the center to upper intermediate shaft retaining bolt. Tighten: Tighten the bolt to 30 N.m (23 lb ft).
5. Connect the lower intermediate shaft to the power steering gear.
6. Install the lower intermediate shaft to power steering gear retaining bolt. Tighten: Tighten the bolt to 50 N.m (37 lb ft).
7. Lower the vehicle.
8. Remove J 42640 from the steering column lower trim cover access hole.

J 42640 Steering Column Anti-Rotation Pin

1. Turn the steering wheel so that the front wheels are pointing straight ahead.
2. Lock the steering column through the access hole in the lower steering column trim cover using the J 42640 .
3. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/sts/i-2004-2007/remont/hoistjack/#general-information) in General Information.
4. Remove the center intermediate shaft to the lower intermediate shaft retaining bolt (3).
5. Remove the lower intermediate shaft to the power steering gear retaining bolt (4).
6. Disconnect the lower intermediate shaft from the power steering gear.
7. Remove the lower intermediate shaft from the center intermediate shaft.

1. Connect the lower intermediate shaft to the center intermediate shaft.
2. Connect the lower intermediate shaft to the power steering gear.
3. Install the lower intermediate shaft to the power steering gear retaining bolt. Tighten: Tighten the bolt to 50 N.m (37 lb ft).
4. Install the center intermediate shaft to the lower intermediate shaft retaining bolt (3). Tighten: Tighten the bolt to 30 N.m (23 lb ft).
5. Lower the vehicle.
6. Remove the J 42640 from the steering column lower trim cover access hole.

Steering Column Accident Damage Inspection

1. Vehicles involved in accidents resulting in frame damage, major body or sheet metal damage, or where the steering column has been impacted, or where supplemental inflatable restraint systems deployed may also have a damaged or misaligned steering column.
2. Inspect the capsules on the steering column bracket assembly. All capsules must be securely seated in the bracket slots and checked for any loose conditions when pushed or pulled by hand.
3. Observe how the bracket is attached to the jacket assembly. If the capsules are not securely seated and the bracket is bolted to the jacket assembly, replace only the bracket. If the capsules are not securely seated and the bracket is welded to the jacket assembly, replace only the jacket assembly.
4. Inspect for jacket assembly collapse by measuring the distance from the lower edge of the upper jacket to a defined point on the lower jacket. Replace the jacket assembly if the measured dimensions are not within specifications.
5. Inspect for tab (1) breakage on the bearing and adapter assembly.
6. Visually inspect the steering shaft for sheared injected plastic (1). If the steering shaft shows sheared plastic, replace the steering shaft.
7. Any frame damage that could cause a bent steering shaft must have the steering shaft runout checked. Using a dial indicator at the lower end of the steering shaft, rotate the steering wheel. The runout must not exceed 1.60 mm (0.0625 in).

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Disconnect the battery negative cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(/cadillac/sts/i-2004-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
3. Remove the steering wheel. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
4. Remove the knee bolster. Refer to «Knee Bolster Replacement»(/cadillac/sts/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages, and Console.
5. Remove the retaining screws (4) from the lower steering column trim cover.
6. Disconnect the closeout shroud from the lower trim cover.
7. Disconnect the electrical connector for the power tilt and telescopic switch.
8. Remove the electrical connector for the telescopic switch from the lower trim cover.
9. Remove the retaining screw (2) from the upper steering column trim cover (1).
10. Lift the upper trim cover to gain access to the lock cylinder access hole.
11. Using a bent tip awl, insert the tip into the access hole.
12. Turn the ignition lock cylinder to the START position.
13. Using the bent tip awl push down on the ignition lock cylinder retaining pin.
14. Release the ignition lock cylinder to the RUN position and remove the lock cylinder.
15. Remove the upper trim cover.
16. Remove the closeout shroud from the upper trim cover.

1. Install the upper steering column trim cover (1) to the closeout shroud (3).
2. Install the upper trim cover (1) to the steering column.
3. Install the retaining screw to the upper trim cover. Tighten: Tighten the screw to 1.5 N.m (13 lb in).
4. Install the Ignition lock cylinder.
5. Install the lower steering column trim cover and ensure that the tabs (2) on the lower trim engage with the tabs on the upper trim cover. Snap the covers together.
6. Connect the lower trim cover to the closeout shroud.
7. Install the retaining screws to the lower trim cover. Tighten: Tighten the screws to 3 N.m (27 lb in).
8. Install the knee bolster. Refer to «Knee Bolster Replacement»(/cadillac/sts/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages, and Console.
9. Install the steering wheel. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
10. Connect the battery negative cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(/cadillac/sts/i-2004-2007/remont/charging-system/#battery-charging-system-and-starting-system) in Engine Electrical.
11. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

Tilt/Telescoping Soft Stops

After replacement of the driver position module (DPM), it is necessary to program the tilt/telescoping soft stops. Each soft stop is a programmable end of travel that is set approximately 1.3 cm (0.5 in) from the mechanical end of travel. The steering column has a soft stop set at each end of the telescoping in/out and tilt up/down movement. The system uses soft stops to prevent wear on the system by ensuring that the steering column movement stops before it reaches its mechanical end of travel in any direction. The soft stops are initially programmed at the factory. The stop positions may be reprogrammed, which is necessary any time the DPM, the tilt actuator or telescope actuators replaced, as described in the following procedure.

Tilt/Telescoping Soft Stop Programming Procedure

1. Turn ON the ignition, with the engine OFF.
2. Connect a scan tool to the vehicle.
3. Select Vehicle Control Systems.
4. Select Computer/Integrating Systems.
5. Select Module Replacement/Setup.
6. Select DPM.
7. Select Column Calibration.
8. Follow the scan tool on-screen instructions.

Control Module Setup (SCLCM Setup)

Set Up Steering Column Lock Control Module

1. Turn ON the ignition, with the engine OFF.
2. Connect a scan tool to the vehicle.
3. With a scan tool, select Vehicle Control Systems.
4. Select Computer/Integrating Systems.
5. Select Module Replacement/Setup.
6. Select SCLCM Setup (Export Only).
7. Select SCLCM Setup.
8. Follow the scan tool on-screen instructions.

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
3. Remove the retaining screws from the multifunction switch.
4. Disconnect the multifunction switch electrical connections.
5. Remove the multifunction switch.

1. Connect the multifunction switch electrical connectors.
2. Install the multifunction switch to the steering column.
3. Install the retaining screws to the multifunction switch. Tighten: Tighten the screws to 7 N.m (62 lb in).
4. Install the steering column trim covers. Refer to «Steering Column Trim Covers Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
5. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the steering wheel inflatable restraint module. Refer to «Inflatable Restraint Steering Wheel Module Replacement»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
3. Disconnect the electrical connectors for the steering wheel control switch.
4. Remove the steering wheel control switch retaining screws.
5. Remove the steering wheel control harness retainer and screw.
6. Carefully pull the steering wheel control switch assembly away from the steering wheel in order to release the steering wheel control switch assembly from the steering wheel.
7. Remove the steering wheel control switch assembly from the steering wheel.
8. Remove the wire harness from the steering wheel control switch assembly.

1. Install the wire harness to the steering wheel control switch assembly.
2. Align the steering control switch assembly engagement tabs to the steering wheel. Push in on the steering wheel control switch assembly in order to secure the control switch assembly to the steering wheel.
3. Install the steering wheel control harness retainer and screw. Tighten: Tighten the screw to 2.3 N.m (20 lb in).
4. Install the steering wheel control switch assembly screws. Tighten: Tighten the screws to 2.3 N.m (20 lb in).
5. Connect the steering wheel control electrical connector.
6. Secure the connector to the retaining clip.
7. Install the steering wheel inflatable restraint module. Refer to «Inflatable Restraint Steering Wheel Module Replacement»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
8. Enable the SIR. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

1. Remove the steering wheel. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
2. Remove the steering wheel rear shroud screws (1).
3. Remove the 2 retaining screws (1).

1. Install the module to the steering wheel.
2. Install the 2 retaining screws (1). Tighten: Tighten the retaining screws to 5 N.m (44 lb in).
3. Install the rear shroud of the steering wheel. Tighten: Tighten the retaining screws (1) to 4.5 N.m (40 lb in).
4. Install the steering wheel. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .

Steering Wheel Replacement

Tools Required

1. J 36541-A Steering Wheel Puller Legs
2. J 1859-A Steering Wheel Puller. See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .
3. J 42640 Steering Column Lock Pin

1. Remove the steering wheel inflator module. Refer to «Inflatable Restraint Steering Wheel Module Replacement»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the horn electrical connector.
3. Install J 42640 to the steering column.
4. Remove the steering wheel set nut.
5. Discard the steering wheel set nut.
6. Install J 36541-A and J 1859-A to the steering wheel. See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .
7. Tighten the puller center screw against steering column shaft until the steering wheel slides off the steering column shaft.
8. Remove J 36541-A and J 1859-A from the steering wheel. See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .

1. Install the steering wheel to the steering column, observing the alignment marks.
2. Install a new steering wheel set nut. Tighten: Tighten the nut to 41 N.m (30 lb ft).
3. Remove J 42640 from the steering column.
4. Connect the horn electrical connector.
5. Install the steering wheel inflator module. Refer to «Inflatable Restraint Steering Wheel Module Replacement»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

Repair Procedure

1. Remove the steering wheel. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
2. Wash the wood section of the wheel with wax and grease remover.
3. Mask off the non-wood area of the steering wheel.
4. Sand with 400 grit sand paper first. Finish sanding with 600 grit.
5. Wash the wood section of the wheel again with wax and grease remover.
6. Clear coat the steering wheel. Refer to the 2003 GM Approved Refinish Materials Booklet, GM 4901 M-D-2003 (English) or M-D-F2003 (French).
7. Install the steering wheel. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the knee bolster. Refer to «Knee Bolster Replacement»(/cadillac/sts/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages, and Console.
3. Disconnect the electrical connector from the telescope actuator assembly.
4. Remove the fasteners (2) from the telescope actuator assembly.
5. Remove the telescope actuator assembly (1) from the steering column.
6. Remove the potentiometer housing (3) from the telescope actuator assembly.
7. Disconnect the telescope cable from the telescope actuator assembly.

1. Install the white end of the telescope actuator cable assembly to the steering column.
2. Install the black end of the telescope actuator cable to the telescope actuator assembly.
3. Install the potentiometer housing (3) to the telescope actuator assembly (1).
4. Install the telescope actuator assembly.
5. Install the retaining screws (2) to the telescope actuator assembly. Tighten: Tighten the screws to 5 N.m (44 lb in).
6. Connect the electrical connector to the telescope assembly actuator.
7. Install the knee bolster. Refer to «Knee Bolster Replacement»(/cadillac/sts/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages, and Console.
8. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the upper and lower trim covers. Refer to «Steering Column Trim Covers Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
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).

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»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
5. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

J 23653-SIR Steering Column Lock Plate. See Special Tools .

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the SIR coil. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement (Coil)»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
3. Using J 23653-SIR remove the bearing retainer (1). See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .
4. Remove the shaft lock shield assembly (1).
5. Remove the turn signal cancel cam assembly (2).
6. Remove the upper bearing spring (3).

1. Install the upper bearing spring (3).
2. Install the turn signal cancel cam assembly (2).
3. Install the shaft lock shield assembly (1).
4. Install the bearing retainer onto J 23653-SIR . See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .
5. Using J 23653-SIR depress the shaft lock shield assembly. See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .
6. Push the bearing retainer (1) into place.
7. Remove J 23653-SIR from the steering shaft. See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .
8. Install the SIR coil. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement (Coil)»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
9. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

Turn Signal Cancel Cam and Upper Bearing Inner Race Replacement

Tools Required

1. J 23653-SIR Lock Plate Compressor
2. J 42137 Cam Orientation Plate Adapter. See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the SIR coil. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement (Coil)»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
3. Remove and discard the bearing retainer using J 23653-SIR and J 42137 . See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .
4. Remove the shaft lock (2) or the cam orientation plate (1).
5. Remove the turn signal cancel cam assembly (3).
6. Remove the upper bearing spring (4).
7. Remove the upper bearing inner race seat (5).
8. Remove the inner race (6).

1. Install the inner race (6).
2. Install the upper bearing inner race seat (5).
3. Install the upper bearing spring (4).
4. Install the turn signal cancel cam (3).
5. Install the shaft lock (2) or the cam orientation plate (1).
6. Install the new bearing retainer using J 23653-SIR and J 42137 . See «Special Tools»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__special-tools) .
7. Install the SIR coil. Refer to «Inflatable Restraint Steering Wheel Module Coil Replacement (Coil)»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) .
8. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

J 42640 Steering Column Anti Rotation Pin

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Turn the steering wheel so that the front wheels are pointing straight ahead.
3. Insert J 42640 into the steering column access hole in order to lock the steering column. This will maintain the correct orientation.
4. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/cadillac/sts/i-2004-2007/remont/hoistjack/#general-information) in General Information.
5. Remove the retaining bolt that secures the upper intermediate shaft to the lower intermediate shaft.
6. Lower the vehicle.
7. Remove the knee bolster. Refer to «Knee Bolster Replacement»(/cadillac/sts/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
8. Remove the knee bolster bracket. Refer to «Knee Bolster Bracket Replacement - Left»(/cadillac/sts/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console
9. Disconnect the steering column electrical connectors.
10. Support the steering column.
11. Remove the steering column mounting nuts.
12. Remove the steering column.
13. Remove the retaining bolt that secures the upper intermediate shaft to the steering column.
14. Remove the upper intermediate shaft from the steering column.

1. Install the upper intermediate shaft to the steering column.
2. Install the retaining bolt that secures the upper intermediate shaft to the steering column. Tighten: Tighten the bolt to 48 N.m (35 lb ft).
3. Install the steering column.
4. Install the steering column mounting nuts. Tighten: Tighten the nuts to 25 N.m (18 lb ft).
5. Connect the steering column electrical connectors.
6. Install the knee bolster. Refer to «Knee Bolster Replacement»(/cadillac/sts/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
7. Install the knee bolster bracket. Refer to «Knee Bolster Bracket Replacement - Left»(/cadillac/sts/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
8. Raise the vehicle.
9. Install the upper intermediate shaft to the lower intermediate shaft.
10. Install the retaining bolt that secures the upper intermediate shaft to the lower intermediate shaft. Tighten: Tighten the bolt to 48 N.m (35 lb ft).
11. Lower the vehicle.
12. Unlock the steering column by removing J 42640 from the steering column lower trim cover access hole.
13. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

J 21854-01 Pivot Pin Remover

1. Disable the SIR coil. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the steering wheel from the column. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
3. Remove the steering column from the vehicle. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
4. Remove the turn signal and multifunction switch assembly only. Refer to «Multifunction, Turn Signal Switch Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
5. Remove the wire harness assembly only. Refer to «Steering Column Wire Harness Assembly Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
6. Remove the telescope drive motor assembly and cable only. Refer to «Telescope Actuator Assembly Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
7. Remove the tilt drive motor assembly and cable only. Refer to «Tilt Motor Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
8. Remove one TORX® head screw from the control module.
9. Slide the control module out from the steering column.
10. Remove the following components: The boot seal (5) The steering shaft seal (4) The sensor retainer (3) The sensor locator (2)
11. The steering wheel position sensor (1). Refer to «Steering Wheel Position Sensor Centering»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
12. Remove one TORX® head screw from the bottom of the gearshift and tilt motor bracket.
13. Remove the bracket.
14. Gently pry the lower shield assembly off of the steering column.
15. Remove 2 pivot pins (1) from the steering column support assembly using J 21854-01 .
16. Unscrew the lead screw.
17. Remove the tilt head assembly (1) from the steering column support assembly (2) with the steering shaft (3) still attached.
18. Remove the tilt head assembly (1) from the steering shaft assembly (2).
19. Tilt the upper shaft assembly 90 degrees to the steering shaft assembly and disengage.
20. Remove two TORX® screws from the dampener.
21. Remove and discard 4 support screws from the steering column support.
22. Remove the steering column support.
23. Inspect the steering column for accident damage.

1. Install the steering column support and secure the support using 4 support screws. Tighten: Tighten the screws to 17 N.m (13 lb ft).
2. Install two TORX® screws into the dampener. Tighten: Tighten the screws to 1.5 N.m (13 lb in).
3. Apply GM P/N 12345718 (Canadian P/N 10953516) to the race and upper shaft assembly.
4. Align the marks on the race and upper shaft assembly with the lower shaft assembly.
5. Install the lower shaft assembly to the race and upper shaft assembly.
6. Install the steering shaft assembly (2) into the tilt head assembly (1).
7. Install the tilt head assembly (1) and the steering shaft assembly (3) into the jacket assembly (2).
8. Install the lead screw.
9. Lubricate the pivot pins with GM P/N 12345718 (Canadian P/N 10953516). Install the 2 pivot pins onto the steering column support assembly.
10. Align and snap the lower shield assembly onto the steering column.
11. Install the bracket.
12. Install one TORX® head screw to the bottom of the gearshift and tilt motor bracket. Tighten: Tighten the screw to 3 N.m (27 lb in).
13. Install the following components: The steering wheel position sensor (1). Refer to «Steering Wheel Position Sensor Centering»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) . The sensor locator (2) The sensor retainer (3) The steering shaft seal (4) The boot seal (5)
14. Slide the control module into position.
15. Install one retaining screw. Tighten: Tighten the screw to 5 N.m (44 lb in).
16. Install the tilt drive motor assembly and cable only. Refer to «Tilt Motor Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
17. Install the telescope drive motor assembly and cable only. Refer to «Telescope Actuator Assembly Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
18. Install the turn signal and multifunction switch assembly only. Refer to «Multifunction, Turn Signal Switch Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
19. Install the wire harness assembly only. Refer to «Steering Column Wire Harness Assembly Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
20. Install the steering column into the vehicle. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
21. Install the steering wheel onto the steering column. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
22. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

1. Disable the SIR coil. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the steering wheel from the column. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
3. Remove the steering column from the vehicle. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
4. Inspect the steering column for accident damage. Refer to «Steering Column Accident Damage Inspection»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-column-accident-damage-inspection) .
5. Remove the upper and lower trim cover. Refer to «Steering Column Trim Covers Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
6. Disconnect all connectors attached to the wire harness assembly.
7. Slide the bulkhead connector out from the column shift and tilt motor bracket assembly.

1. Slide the bulkhead connector into the column shift and tilt motor bracket assembly.
2. Connect all of the connectors to the wire harness assembly.
3. Install the upper and lower trim cover. Refer to «Steering Column Trim Covers Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
4. Install the steering column into the vehicle. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
5. Install the steering wheel onto the steering column. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
6. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the steering column from the vehicle. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
3. Remove the following from the steering shaft: The boot seal (5) The steering shaft seal (4) The sensor retainer (3) The sensor locator (2)
4. The steering wheel position sensor (1). Refer to «Steering Wheel Position Sensor Centering»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
5. Remove the adapter and bearing assembly from the steering jacket assembly.

1. Install the adapter and bearing assembly to the steering jacket assembly.
2. Install the following onto the steering shaft: The steering wheel position sensor (1) Refer to «Steering Wheel Position Sensor Centering»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) . The sensor locator (2) The sensor retainer (3) The steering shaft seal (4) The boot seal (5)
3. Install the steering column into the vehicle. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
4. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

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.

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.

1. Disable the SIR coil. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the steering wheel from the column. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
3. Remove the steering column from the vehicle. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
4. Inspect the steering column for accident damage. Refer to «Steering Column Accident Damage Inspection»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-column-accident-damage-inspection) .
5. To remove the tilt drive motor assembly (2) perform the following procedure: Disconnect the connectors of the tilt drive motor assembly (2). Remove the 2 TORX® head screws (3). Remove the tilt drive motor assembly (2). Pull off the potentiometer housing (1).
6. To remove the tilt cable assembly perform the following procedure: With locking pliers squeeze the white end of the tilt cable assembly to remove from the tilt drive motor assembly. Pull the black end to separate the tilt cable assembly from the steering column.

1. Install the black end of the tilt cable assembly to the steering column.
2. Install the white end of the tilt cable assembly to the tilt drive motor assembly.
3. Snap on the potentiometer housing. (1).
4. Install the tilt drive motor assembly (2) to the steering column.
5. Install 2 TORX® head screws (3). Tighten: Tighten the screws to 1.5 N.m (13 lb in).
6. Connect the connectors of the tilt drive motor assembly (2).
7. Install the steering column into the vehicle. Refer to «Steering Column Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column) .
8. Install the steering wheel onto the steering column. Refer to «Steering Wheel Replacement»(/cadillac/sts/i-2004-2007/remont/steering-column-switches/#steering-wheel-steering-column__steering-wheel-replacement) .
9. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 3»(/cadillac/sts/i-2004-2007/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.

Inflatable Restraint Steering Wheel Module Coil Centering

1. Verify the following 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 on the back side (2) 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 no spring service lock on the back side (1), 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 no centering window is present on the front side (3) of the SIR coil, but a spring service lock (1) is on the back side (2), 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 2 1/2 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. For no centering window on the front side (2) of the SIR coil and no spring service lock on the back side (1), perform the following steps: Hold the SIR coil with the face up. Rotate the coil hub in the direction of the arrow (3) until the coil ribbon stops. Rotate the coil hub, slowly, counterclockwise, for 2 1/2 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.

Tilt/Telescoping Switch Operation

The tilt/telescoping steering column has a 4-position switch which may be used to adjust the position of the steering wheel in or out which is telescope and up or down which is tilt. The position of the column may be changed as follows

1. Press the switch up to tilt the column up.
2. Press the switch down to tilt the column down.
3. Press the switch forward and the column moves toward the front of the vehicle.
4. Press the switch rearward and the column moves toward the rear of the vehicle.

The instrument panel module (IPM) receives inputs from the tilt/telescope switch to manually move the column to a desired position. Pressing the control switch sends an input to the IPM. The IPM receives an input and sends a GMLAN message to the driver position module (DPM) which actuates the corresponding column motor.

Motors

Both the tilt and telescoping motors are reversible. For example, the tilt motor moves the column both up and down. When the DPM receives an input to move the column up, the DPM supplies battery positive voltage and ground to the tilt motor in order to move the column up. When the DPM receives a column down input, the DPM supplies battery positive voltage and ground to the same motor, but with a reverse polarity. When the voltage polarity is reversed, the motor runs in the opposite direction and moves the column down.

Position Sensors

Two position sensors are used by the DPM to store column positions in memory and to return the column to the stored memory positions. The DPM provides a 5-volt reference voltage and a ground to both the tilt and telescoping position sensors. The sensor feedback circuit voltage varies from 0.25-4.75 volts. Each sensor is mounted to its corresponding motor cable assembly. When the motor rotates its cable, the resistance of the sensor varies. The DPM monitors the feedback voltage to determine the column position via the tilt and telescoping position sensor input circuits. When an entry or exit position is saved, the DPM stores the column positions by recording each position sensor's feedback voltage. When an entry or exit position is commanded, the module moves the motors until all the position sensor feedback voltages equal the feedback voltages stored in memory.

Tilt/Telescoping Memory

Memory settings and the personalization of steering wheel positions are available with the tilt/telescoping steering column. The data stored consists of entry positions and exit positions. The entry position is the position that the steering column moves in when the ignition is turned ON. The exit position is the direction that the steering column moves in when the ignition is turned OFF and the driver door is opened.

An initial memory setting is set in the DPM at the assembly plant. This setting may be changed to suit the customer at the time of purchase or at anytime in the future.

Entry/Exit Personalization

The DPM stores personalization information. The radio is used to enable and disable the personalization feature in the DPM. A GMLAN message is sent to the DPM by the radio which specifies that the DPM enable the personalization feature until disabled again using the DIC.

The steering column control module can store 6 possible positions: 3 entry positions and 3 exit positions.

1. Driver 1 exit position, set using the memory switches
2. Driver 2 exit position, set using the memory switches
3. Default exit position which is all forward, all up, with no memory position set
4. Driver 1 entry position, set using the memory switches
5. Driver 2 entry position, set using the memory switches
6. Last known driver entry position which is when the ignition is turned ON by an unknown driver

Memory Personalization Recall

When a keyless entry transmitter is used to unlock the vehicle doors, the EKM communicates which driver key fob performed that command. The DPM receives the unlock command via a GMLAN message from the EKM.

Tilt/Telescoping Description

The energy absorbing and locking steering column includes 3 important features in addition to the steering function.

1. The steering column is energy absorbing and is designed to compress in a front-end collision which will lessen the chance of injury to the driver.
2. The steering column has a tilt/telescoping control system that consists of a steering column power assembly with positioning motors and sensors, and a steering column control switch.
3. The multi-function lever provides for the control of the headlamp high beams, and the windshield washer and wiper.

Heated Steering Wheel

The heated steering wheel system consists of a heated steering wheel, a heated steering wheel switch, and a steering wheel heat module. The heated steering wheel includes a non-serviceable heating element and temperature sensor. The heating element and sensor are located in the rim of the steering wheel. The heated steering wheel switch is located in the steering wheel switch bezel. The steering wheel heat module is located on the backside of the steering wheel center hub. When the switch is pressed, a signal is sent to the controller and the heated steering wheel is turned ON. The system then remains ON until the customer turns it OFF. The wheels normal operating temperature is 32°C (89.6°F). The wheel takes approximately 3-4 minutes to reach the normal operating temperature. The wheel will take longer to heat up if the vehicle temperature is below -21°C (-5.8°F). The built-in temperature sensor provides input to the controller to limit the temperature to the normal operating temperature. The wheel will not operate if the vehicle temperature is at or above 32°C (89.6°F).

Special Tools

Special Tools Illustration Tool Number/ Description J 1859-A Steering Wheel Puller J 21854-01 Pivot Pin Remover J 23653-SIR Lock Plate Compressor J 36541-A Steering Wheel Puller Legs J 42137 Cam Orientation Plate Adapter J 42640 Steering Column Anti Rotation Pin

Scheme 7

Scheme 8

Scheme 9

Scheme 10

Scheme 11

See also:
• Diagnostic System Check - Vehicle
• DTC Symptom Description
• Circuit Testing
• Wiring Repairs
• Testing for Intermittent Conditions and Poor Connections
• Connector Repairs
• Steering Column Lock Control Module Programming and Setup
• Frame, Trim Cover, Heater, Pad, Blower, Power Adjuster Control Module Replacement - Front Seat Cushion
• Control Module References
• Instrument Panel Module Programming and Setup
• Diagnostic Starting Point - Vehicle
• Checking Aftermarket Accessories
• Inflatable Restraint Steering Wheel Module Coil Replacement (Coil)
• Fastener Notice
• SIR Caution
• Lifting and Jacking the Vehicle
• Battery Negative Cable Disconnect/Connect Procedure
• Knee Bolster Replacement
• SIR Inflator Module Coil Caution
• Column/Ignition Lock Schematics
• Steering Wheel and Column Connector End Views
• Control Module Setup (SCLCM Setup)
• Steering Column Does Not Tilt Up/Down
• Steering Column Does Not Telescope In/Out
• Service Column Lock Indicator Always On
• Service Column Lock Indicator Inoperative
• Noise in Steering Column
• Looseness in Steering Column
• Heated Steering Wheel Inoperative
• Heated Steering Wheel Indicator Malfunction
• Symptoms - Steering Wheel and Column
• Steering Wheel Replacement
• Fastener Tightening Specifications
• Special Tools
• Steering Column Accident Damage Inspection