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Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptor DTC C0252 00 VSES Sensor Uncorrelated Circuit/System Description The vehicle stability enhancement system (VSES) is activated by the electronic brake control Conditions for Running the DTC The steer angle has been centered. The VSES is active. The centered lateral acceleration value is less than 0.5 g. The yaw rate error is less than 6 degrees/second. Conditions for Setting the DTC One of the following conditions exists: The DTC sets when VSES is engaged for 10 seconds with the yaw rate error always in The yaw rate error is greater then 10 degrees/second for 5 seconds, and the yaw has not Action Taken When the DTC Sets One or more of the following actions may occur: The EBCM disables the ABS/TCS/VSES for the duration of the ignition cycle. The ABS and VSES indicators illuminate. The driver information center (DIC) displays the Service Traction Control and Stabilitrak Conditions for Clearing the DTC
2008 Chevrolet Silverado 1500 2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
The condition for the DTC is no longer present. The EBCM automatically clears the history DTC when a current DTC is not detected in 100 Diagnostic Aids The following conditions can cause this concern: Improper steering alignment An internal lateral accelerometer failure Reference Information Schematic Reference Antilock Brake System Schematics Connector End View Reference Component Connector End Views Description and Operation ABS Description and Operation (With JL4) or ABS Description and Operation (Without Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for Scan Tool Information Circuit/System Verification 1. Perform the steering angle sensor calibration. 2. Clear the DTC with a scan tool, and operate the vehicle within the conditions for setting the
2008 Chevrolet Silverado 1500 2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
DTC. 3. Verify DTCs : C0186, C0196, C0252, C0253, or C0710 are not set. If DTCs C0186, C0196, C0253, or C0710 are set, refer to Diagnostic Trouble Code If only DTC C0252 set as current, replace the EBCM. DTC C0253 Diagnostic Instructions 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. DTC Descriptor DTC C0253 00 Centering Error Circuit/System Description The usable output voltage range for the yaw rate sensor signal and lateral accelerometer sensor Conditions for Running the DTC The vehicle speed is greater than 40 km/h (25 mph). Conditions for Setting the DTC The vehicle has been driven for 10 minutes without completing steer angle centering. Action Taken When the DTC Sets The EBCM disables the VSES for the duration of the ignition cycle. The driver information center (DIC) displays the TRAC/STABILITRAK OFF message. The antilock brake system (ABS) and traction control system (TCS) remain functional.
2008 Chevrolet Silverado 1500 2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Conditions for Clearing the DTC The condition for the DTC is no longer present. The EBCM automatically clears the history DTC when a current DTC is not detected in 100 Diagnostic Aids The following conditions can cause this concern: Improper steering alignment. Internal yaw and lateral acceleration sensor failure. EBCM internal failure. Reference Information Schematic Reference Antilock Brake System Schematics Connector End View Reference Component Connector End Views Description and Operation ABS Description and Operation (With JL4) or ABS Description and Operation (Without Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for Scan Tool Information Circuit/System Verification
2008 Chevrolet Silverado 1500 2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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