Wednesday, February 1, 2012
2002-2006 Cadillac Escalade, Escalade EXT activation at low speeds ABS brake (ABS) repair manual
2002-2006 Cadillac Escalade, Escalade EXT Antilock brake (ABS) activation at low speeds repair Manual. Some customers may comment on ABS activation at low speeds, usually less than 8 km/h (5 mph). The technician to research finds no design-time controls are set. The cause of this condition can an increased air gap between the wheel speed sensor and reluctor ring hub thanks to rust and debris built up on the sensor mounting surface. And the wheel speed sensor mounting AC measuring surfaces clean. 1. raise and support the vehicle. 2. both the front wheel speed sensor harness connectors on the frame and disconnect. 3. place a digital Volt Meter (DVM) on the terminals of each wheel speed sensor connector. 4. turn the wheel clockwise revolution about one per second. The minimum reading should be at least 350 of ACmV. If the reading is less than 350 ACmV, you delete the speed of the wheel. sensor. 5. Insert the wheel speed sensor bore to prevent debris in the hub during service. 6. clean the wheel speed sensor mounting surface using a wire brush, sandpaper, Emery cloth, scotch brite, or other suitable material. Make sure that the wheel speed sensor surface thoroughly to clean. There should be no rust or corrosion. 7. check the sensor head to determine if it has been warped/distorted due to the build-up of corrosion or other causes. Check the surface of the fitting on the head of the sensor for flatness by placing it on the edge of a metal machinists scale or other suitable straight edge to measure the flatness. Check the sensor for flatness in several (minimum 3) positions/directions. If the sensor head is distorted, replace the sensor. 8. (Spray), two thin layers of the specified rust penetrating lubricant (corrosion inhibitor) apply to the entire sensor mounting surface on the lower hub. Let dry for 3-5 minutes between coats. Use only rust penetrating lubricant, P/N 89022217 (in Canada, P/N 89022218). 9. when the corrosion inhibitor dry to the touch (about 10 minutes), apply a thin layer of bearing grease to the hub surface and sensor o-ring before installing the sensor. Use only Wheel Bearing lubricant, P/N 01051344 (in Canada, P/N 993037). 10. install either the original or a new sensor in the hub. Ensure that the sensor is flush against the hub. Refer to the applicable procedure ABS Wheel speed Sensor replacement in the subsection of the Service Manual. 11. the DVM village over the sensor terminals and recheck the tension while rotating the wheel. The voltage should now read of at least 350 ACmV. Click here for the 2002-2006 Cadillac Escalade, Escalade EXT Antilock brake (ABS) activation at low speeds repair manual
