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1. Ignition OFF, disconnect the harness connector at the yaw rate/lateral and longitudinal accelerometer sensor. 2. Test for less than 1 ohm of resistance between the ground circuit terminal 4 and ground. If greater than the specified range, test for an open/high resistance in the ground 3. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground. If the test lamp does not illuminate, test the ignition circuit for a short to ground or an 4. Ignition OFF, disconnect the C2 harness connector at the EBCM. 5. Ignition ON, test for 0 volts between the CAN HI circuit terminal 11 and ground. If greater than the specified value, test the CAN HI circuit for a short to voltage. 6. Test for 0 volts between the CAN LO circuit terminal 25 and ground. If greater than the specified value, test the CAN LO circuit for a short to voltage. 7. Ignition OFF, test for infinite resistance between the CAN HI circuit terminal 11 and ground. If not the specified value, test the suspect circuit for a short to ground. 8. Test for infinite resistance between the CAN LO circuit terminal 25 and ground. If not the specified value, test the CAN LO circuit for a short to ground. 9. Test for less than 1 ohm of resistance between the CAN HI circuit terminal 11 and terminal 2. If greater than the specified range, test the CAN HI circuit for an open/high resistance. 10. Test for less than 1 ohm of resistance between the CAN LO circuit terminal 3 and terminal 25. If greater than the specified range, test the CAN LO circuit for an open/high resistance. 11. Test for infinite resistance between the CAN HI terminal 11 and the CAN LO terminal 25. If not the specified value, test the CAN HI and CAN LO circuits for a short together. 12. If all circuits test normal, replace the Yaw Rate/Lateral sensor. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Vehicle Yaw Sensor with Vehicle Lateral and Longitudinal Accelerometer Replacement SYMPTOMS - ANTILOCK BRAKE SYSTEM
2007 Hummer H3 2007 BRAKES Antilock Brake System - H3
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