• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
The electronic brake control module (EBCM) monitors the deceleration of the vehicle for Antilock Brake System (ABS) operation.
Ignition is in the ON position
• | The yaw rate sensor calibration is deleted and the vehicle is driven. |
• | The yaw rate sensor calibration obtained, sensor voltage is not between 2.38V and 2.62V. |
• | The ABS is disabled. |
• | The ABS warning indicator turns ON. |
• | The traction control and vehicle stability control (VSC) is disabled. |
• | The VSC warning indicator turns ON. |
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
Antilock Brake System Schematics
Control Module References for scan tool information
⇒ | If DTC U0123, U0124, or U0126 is set, refer to appropriate DTC. |
⇒ | If yaw rate sensor is not correctly installed, correct installation of yaw rate sensor and using a scan tool perform yaw rate sensor calibration. |
⇒ | If yaw rate sensor is correctly installed, replace EBCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for EBCM replacement, setup, and programming |