GM 26104070
Position Sensor

Begin sensor centering by identifying sensor type then checking front connector placement to ensure its position on the right side. Severing the connector breaks the connection between the sensor and the adapter and bearing assembly setup. Before sensor reuse it is unnecessary to center but you should create an alignment mark on the flush rotor flange cuff to maintain proper alignment when reinstalling. Before sensor installation check whether the new sensor has an installed pin. Keep the pin installed to the sensor until you complete proper sensor seating. You should mount the sensor against the steering shaft for the adapter and bearing assembly installation process while continuously keeping the flush rotor flange cuff alignment mark facing forward until the sensor reaches its final position. Adhere sensor wires while confirming that the FRONT shows a foam ring with both a pin hole and a flushed rotor flange cuff bearing an alignment mark. Before sensor installation you must align the marks from the flush rotor flange cuff. The connection sequence must be repeated for every supplementary sensor with careful documentation of distinctive installation specifications like pin holes and alignment marks.

When replacing the Steering Angle Sensor make sure the wheel lies straight and remains locked into position. Install the anti-rotation pin into the Steering Column when this becomes necessary for locking purposes. Begin by removing the upper intermediate shaft connection's nut and bolt then push the intermediate Steering Shaft downwards. To disconnect the sensor connector use an appropriate tool then pull it down behind the right side of the Steering Column but avoid putting side force on either the sensor or the bearing assembly. Take out the sensor retainer from the Steering Shaft. Proceed with sensor reuse by extracting it directly from the bearing adapter until the sensor clears the Steering Shaft but retain centering alignment using a pin between 1.0-2.0 mm in diameter during removal. The diameter of the pin must range from 1.0 to 2.0 mm. Never remove the bearing adapter. You can remove a new sensor directly out from the bearing adapter until it clears the Steering Shaft. When using the sensor again, position it directly onto the Steering Shaft while its bearing adapter accepts the installed pin to prevent side forces. Place the sensor directly on the Steering Shaft and within the bearing adapter until new sensors automatically center before removing the pin during final installation. Set the sensor at a 3.00 mm distance from the bearing adapter and then install the sensor connector followed by pin removal from the sensor. First install the sensor retainer onto the Steering Shaft before moving the shaft up to secure the bolt and nut to the upper intermediate shaft to Steering Column connection point while using correct fasteners according to the application. Turn the upper intermediate shaft screw to a torque of 47 n.m (35 lb ft). Check wheel alignment in vehicles that adopt rear wheel steering technology.

The following tools are mandatory for Steering Angle Sensor maintenance work which includes Steering Angle Sensor and steering shaft lower bearing replacement: j 42640 Steering Column anti-rotation pin. J 42640 Steering Column anti-rotation pin. The sir system activation needs to be disabled first while keeping the front wheels aligned and the Steering Column secured as you detach either the Steering Column or intermediate shaft to avoid sir coil assembly damage. Lock the Steering Column through j 42640 operations. Place a 1-2 mm diameter pin into the sensor before taking it out to ensure it remains properly centered when reinstalled; otherwise discard the sensor. The sensor requires replacement if installation cannot be completed. The sensor connector needs removal first followed by removal of the steering shaft retainer. When replacing the sensor and other components pull the sensor directly from both the steering shaft and bearing adapter. You should never use sideways force during sensor and bearing adapter installation. Position the sensor directly onto the steering shaft and into the bearing adapter. Keep 3 millimeters of space between the sensor and bearing adapter surfaces. Attach the sensor connector while removing the pin from the sensor followed by placing the sensor retainer onto the steering shaft. Reinstall the Steering Column then remove the j 42640. Finally, enable the sir system.

To remove the Steering Angle Sensor, raise your vehicle with due respect for your transport vehicle lifting guidelines and the rear wheel steering lifting/jacking notice. Remove the steering gear protection shield by removing the retaining bolts and disconnect the electrical connector. Delicately lift the Steering Angle Sensor cover from the steering gear without cracking the sensor. Then, unbolt the Steering Angle Sensor's retaining bolts. Do not forget to change the steering gear actuator if the boots are damaged, also inspect the inner tie rod boot for damaged or worn parts. Remove the Steering Angle Sensor from the steering gear making sure it does not turn accordingly. For installation, mount the new Steering Angle Sensor onto the steering gear with the o-ring in place. Take off the pin that keeps the location of the new sensor while immediately installing on the steering gear while carefully keeping the pin in the same location. Secure the Steering Angle Sensor with the retaining bolts with loctite 242 blue and tighten to 4 n.m (35 lb in). Replace the Steering Angle Sensor cover and reconnect the electrical connector. Finally, install and tighten the steering gear protection shield and its retaining bolts to 180 n.m (132 lb ft), lower the vehicle and undertake a four wheel alignment.

Service and repair of the Steering Wheel Position Sensor requires identification of the steering angle sensor model from provided images followed by proper removal steps. The sensor connector's FRONT component faces the right side. Existing sensor reuse eliminates the need for centering before removal. Use a torque screwdriver to disconnect the sensor connector followed by sensor removal from its position within the adapter and bearing assembly. Creating an alignment mark on the flush rotor flange cuff before sensor reinstallation will prevent misalignment when reusing existing hardware. A foam ring and centering pin hole along with a flush rotor flange cuff will appear on the sensor's FRONT side. Installation requires sensor alignment with the steering shaft while placing it within the adapter and bearing assembly together with proper attachment of the connector. The installation of newly acquired sensors includes a preinstalled pin. Keep the pin in place until the sensor has reached full installation position. Multiple D flat surfaces, an alignment tab, and a foam ring can be found on the sensor's back side. The rotor flange cuff alignment marks need to remain correctly positioned until the sensor gets fully installed in position. Follow the same installation process for every additional sensor then document each sensory feature including pin positions and alignment points.

These tools should be used for servicing the Steering Angle Sensor when replacing either the Steering Angle Sensor or steering shaft lower bearing: j 42640. Steering column anti-rotation pin (J 42640). Disable the sir system first and keep the front wheels straight while locking the Steering Column before removing either the Steering Column or intermediate shaft to stop alignment issues and shield the sir coil assembly from damage. Lock the Steering Column by using the Steering Column anti-rotation pin (J 42640). When working with the sensor users need to verify that new sensors arrive equipped with pins. If not, reorder the sensor. Extract the Steering Column together with sensor connector for better access. The sensor needs a pin installed before removal to preserve centering alignment which makes sensor discarding necessary if this step is omitted. The acceptable area for pin dimensions extends from 1 to 2 millimeters. The bearing adapter needs to stay in place. Pull the sensor directly from the bearing adapter at a 90-degree angle off the steering shaft. All force during sensor and bearing adapter installation must be applied straight forward not sideways. To reuse the sensor place it on the steering shaft while keeping the pin inside. Individual sensors arriving for replacement will come set to center position. The installation process needs to be finished prior to removing the pin. First, maintain a 3 mm distance between the sensor and bearing adapter before putting on the sensor connector and removing the pin and installing the sensor retainer while reinstalling the Steering Column. The sir system becomes operational after removing the Steering Column anti-rotation pin (J 42640).

These tools should be used for servicing the Steering Angle Sensor when replacing either the Steering Angle Sensor or steering shaft lower bearing: j 42640. Steering Column anti-rotation pin (J 42640). Disable the sir system first and keep the front wheels straight while locking the Steering Column before removing either the Steering Column or intermediate shaft to stop alignment issues and shield the sir coil assembly from damage. Lock the Steering Column by using the Steering Column anti-rotation pin (J 42640). When working with the sensor users need to verify that new sensors arrive equipped with pins. If not, reorder the sensor. Extract the Steering Column together with sensor connector for better access. The sensor needs a pin installed before removal to preserve centering alignment which makes sensor discarding necessary if this step is omitted. The acceptable area for pin dimensions extends from 1 to 2 millimeters. The bearing adapter needs to stay in place. Pull the sensor directly from the bearing adapter at a 90-degree angle off the steering shaft. All force during sensor and bearing adapter installation must be applied straight forward not sideways. To reuse the sensor place it on the steering shaft while keeping the pin inside. Individual sensors arriving for replacement will come set to center position. The installation process needs to be finished prior to removing the pin. First, maintain a 3 mm distance between the sensor and bearing adapter before putting on the sensor connector and removing the pin and installing the sensor retainer while reinstalling the Steering Column. The sir system becomes operational after removing the Steering Column anti-rotation pin (J 42640).

In order to service/repair the Steering Angle Sensor or Steering Shaft lower bearing, first, insert the front wheels in the straight-ahead position and install the steering column anti-rotation pin (J 42640) or check the position of the Steering Wheel in the locked position. Unplug the negative battery cable and remove the sir including its shaft taking care of register marks on the upper intermediate shaft to the steering column shaft where they meet since these marks will be needed during assembly. Cover the ends of the bolts to prevent the loss of the nut and the bolt connecting the upper and the lower Steering Shaft, slide the lower shaft down. Suitable tool must be used to pull down the angle sensor for the Steering Wheel connector around the right side for the column for accessibility. If going to reuse the existing Steering Angle Sensor, make sure it is in the middle before removing it and confirm the type of sensor. Take out the Steering Angle Sensor and adapter and bearing assembly from the steering column jacket and pull it with a straight action and remove the sensor from the clips in the adapter and bearing assembly. In case of installing a new sensor, make sure it has an inbuilt pin; if not, reorder the sensor. Check that the front wheels are straight and the steering column anti-rotation pin (J 42640) is installed or the Steering Wheel is locked. In the case of reuse of the existing sensor, ensure that you determine the type of sensor before installation. Replace the Steering Angle Sensor into the adapter and bearing assembly and seat this assembly into the steering column jacket so that the two notches match up without pushing sideways. Hook up the Steering Angle Sensor connector, align the marks on the upper intermediate shaft and at the ones at the steering column shafts, and put on the intermediate shaft to the steering column pinch bolt and tighten the nut to torque of 62 nm (46 ft. Lbs.). Finally, reconnect the negative cable of the battery and activate the sir system.

Service on the Steering Angle Sensor begins by checking sensor type before aligning the sensor connector's front connector on the right side. The adapter and bearing assembly requires the removal of both sensor and connector before proceeding. A pre-removal centering step is unnecessary when preserving the same sensor for reuse. Before removing the sensor create a reference mark on the flush rotor flange cuff so the components stay properly aligned during replacement. During installation keep the pin in place until you successfully position the sensor. Place the sensor against the Steering Shaft with the front position of the sensor showing a foam ring and a pin hole alongside the flushed rotor flange cuff and alignment mark. Connect the device while checking that the sensor back contains double d flats in addition to a foam ring and an alignment tab set-up. The installation process for extra sensors requires repetition of alignment steps while maintaining rotor flange cuff alignment marks throughout sensor positioning. Make sure to check that the front section of the sensor uses proper holes and marks for correct setup.

A technician can identify the steering angle sensor type by reviewing mentioned illustrations. The sensor connector has its FRONT section stored to the right side when viewing directions from a technician's position. The sensor connector needs removal before proceeding with the operation. It's not necessary to perform centering operations before removing the existing sensor when planning sensor reuse. Extract the sensor body from its adapter connection to the bearing assembly. During sensor installation check for a foam ring located on the FRONT side of the sensor next to a pin hole that facilitates centering while ensuring a smooth rotor flange cuff fit. Place a strategic alignment mark on the flush rotor flange cuff during sensor removal in order to prevent incorrect positioning for the reinstallation procedure. A raised rotor flange cuff appears on the sensor's FRONT side along with a pin hole and an alignment mark. Install the sensor by positioning it against the steering shaft then connecting it to the adapter and bearing assembly. The sensor includes a pin which must remain in place unless it's a fresh sensor installation. When installing the sensor make sure to keep the pin in place until the sensor is fully seated. Installation requires proper alignment of the marks found on the flush rotor flange cuff. Double D flat features and a foam ring exist on the BACK section of the sensor for successful mounting. Repetitions should be done for all sensors while keeping track of unique features together with matching requirements for proper installation.

A replacement of the Steering Angle Sensor or steering shaft lower bearing requires first disabling sir functionality. The Steering Column anti-rotation pin (J 42640) enables access through the access hole in the lower trim cover to lock the Steering Column. Steering column installation must wait until the column reaches the lock position and both front wheels face forward. This prevents damage to the sir coil assembly while working on the intermediate shaft or Steering Column. First separate the vehicle's Steering Column. When using the sensor a second time always install the pin before extracting it from the bearing adapter to its nearly-off position from the steering shaft. Eliminate the pin only when re-installing the sensor. To remove the sensor permanently pull it forward directly off the steering shaft from its bearing adapter position. The reuse of the sensor requires placement onto the steering shaft before insertion into the bearing adapter while maintaining the pin to prevent sideways movement. Stand the sensor up onto the steering shaft and the bearing adapter. Maintain a 3 millimeter gap between the sensor and the bearing adapter. Connect the sensor to its port, remove the pin from the sensor body then mount the retainer on the shaft. After installation of the Steering Column to the vehicle you must remove the Steering Column anti-rotation pin (J 42640) to activate the sir system.

To replace the rear position sensor, first lift the vehicle with a lift and disconnect its electrical connector. Gently lift off the rear wheel position sensor cover from the steering gear with a slot by not damaging the rear position sensor. Next, pull off the rear wheel position sensor retaining bolts and see how worn or damaged the inner tie rod boot is; steering gear actuator-as stated if it is damaged, change it. Keep position of sensor intact without turning it and remove the rear wheel position sensor from the steering gear. As for installation, make sure the o-ring is installed and fix the rear wheel position sensor to the steering gear, trying your best to ensure the position of the replacement sensor. Temporarily slide out the pin holding the new sensor's position and then reinstall it as soon as possible. Thread the rear wheel position sensor retaining bolts and apply loctite 242 blue to them and tighten to 4 nm (35 inch lbs.). Last but not least, install the rear wheel position sensor cover, reconnect the electrical connector, lower the vehicle, and conduct a four-wheel alignment.

You must identify which steering angle sensor version you are working with from the drawing set prior to sensor detachment. The sensor connector's FRONT end faces right from the installation point of view. The retention of the original sensor requires no alignment since removal proceeds without sequential steps. Service requires connector disconnection followed by sensor removal from its placement on the adapter and bearing assembly. A mark should be applied to the flush rotor flange cuff before taking it off to avoid installation misalignment. During setup keep the sensor's FRONT section with a foam ring alongside a centered pin hole and a rotor flange cuff that is flat. To achieve proper installation of reused sensors keep your alignment marks on the flush rotor flange cuff in sight until the sensor reaches its final position. A fresh installation of the sensor arrives with its installation pin included. However, users should not remove this pin before the sensor is completely seated. The sensor installation procedure mandates you to leave the pin in place until the sensor reaches its full position. The setup requires three stages to perform: first position the sensor to match the steering shaft then fit it into the adapter and bearing assembly followed by sensor connection. A pin hole exists at the FRONT of the sensor along with a raised rotor flange cuff and installation alignment mark. The BACK of the sensor includes two D flats for double installation and a tab for alignment. The whole procedure should be repeated while paying close attention to component position accuracy.

The repair of the steering wheel position sensor requires these essential tools: Steering Column anti-rotation pin (J 42640). Steering Column anti-rotation pin (J 42640). The first step involves both the sir system disablement and locking the Steering Column from the access hole with a Steering Column anti-rotation pin (J 42640). Disconnecting the Steering Column or intermediate shaft without first locking the column in position and achieving straight-front wheel alignment will result in sir coil assembly damage and improper alignment. When installing a new sensor always check it includes the pin. Extract the vehicle's Steering Column after making sure the new sensor contains this pin. If not, reorder the sensor. The sensor connector requires a suitable tool to lower it down so the connection can be accessed while removing the sensor retainer from the Steering Shaft. Before reusing a sensor install a pin into it to keep it properly centered; otherwise discard it. Otherwise, discard the sensor. Leaving the bearing adapter in position remains crucial. To replace sensors maintain a direct pull which extracts them from the bearing adapter toward the Steering Shaft. Keep the sensor straight when fitting it onto the Steering Shaft before inserting it inside the bearing adapter. Never apply torque to the sensor during installation. The sensor needs to be adjusted to create a 3 mm distance between itself and the bearing adapter. Place the sensor connector onto the rotational sensor before pulling its pin off while mounting the two-part sensor retainer on the Steering Shaft. Reinstall the Steering Column to the vehicle after you remove the Steering Column anti-rotation pin (J 42640) then activate the sir system.

Remove the pin retaining the position of the new sensor and install it immediately.