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DIAGNOSTIC STARTING POINT - ANTILOCK BRAKE SYSTEM DTC C0196 C0196 00: Yaw Rate Circuit C0196 5A: Yaw Rate Circuit Plausibility Failure DTC C0201 C0201 00: Antilock Brake System (ABS) Enable Relay Contact Circuit C0201 04: Antilock Brake System (ABS) Enable Relay Contact Circuit Open C0201 0E: Antilock Brake System (ABS) Enable Relay Contact Circuit Resistance Below Threshold DTC C0242 C0242 00: Engine Control Module (ECM) Indicated TCS Malfunction P0856: Engine Control Module (ECM) Indicated TCS Malfunction DTC C0245 C0245 00: Wheel Speed Sensor Frequency Error C0245 5A: Wheel Speed Sensor Plausibility Failure DTC C0252 C0252 00: VSES Sensor Uncorrelated DTC C0253 C0253 00: Centering Error DTC C0299 C0299 00: Brake Booster Sensor Performance C0299 5A: Brake Booster Sensor Plausibility Failure C0299 31: Brake Booster General Checksum Failure DTC C0455 C0455 00: Front Steering Position Sensor Circuit DTC C0550 C0550 00: Electronic Control Unit (ECU) Performance DTC C0561 C0561 71: System Disabled Information Stored Invalid Serial Data Received C0561 72: System Disabled Information Stored Alive Counter Incorrect or not Updated C0561 74: System Disabled Information Stored Value of Signal Protection Calculation Incorrect DTC C0569 C0569 00: System Configuration Error DTC C0710 C0710 00: Steering Position Signal C0710 5A: Steering Position Signal Plausibility Failure DTC C0774 C0774 00: Low Tire Pressure System Performance DTC C1100 or C1101 C1100 00: Brake Booster Vacuum Sensor Performance
2008 Chevrolet Silverado 1500 2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Begin the system diagnosis with Diagnostic System Check - Vehicle . The Diagnostic System The identification of the control modules which command the system The ability of the control modules to communicate through the serial data circuit The identification of any stored diagnostic trouble codes (DTCs) and their status The use of the Diagnostic System Check will identify the correct procedure for diagnosing the HYDRAULIC BRAKE BOOSTER CALIBRATION Hydraulic Brake Booster Calibration Perform the Diagnostic System Check for DTCs prior to using this diagnostic procedure. Refer to For vehicles under 8600 GVWR, the EBCM calibrates itself to the Brake Booster Vacuum If the "Power Brake Booster" activates excessively or if excessive effort of the brake pedal is 1. Transmission in Park, engine running. 2. With scan tool connected to the vehicle, check for any DTCs. If there are any DTCs current, diagnose and correct DTCs before proceeding. 3. Apply throttle pedal to attain 3000 RPM 4. Release throttle pedal. 5. Apply and hold brake pedal firmly for approximately 1 second, release brake pedal. Perform this step 3 times. The entire sequence of steps 3 through 5 (consisting of one 6. With the scan tool, navigate to the "data display" for the EBCM and observe the "HBB Calibration Status" parameter. It should display "complete/success" If not, repeat HBB DTC C0035 OR C0040 (WITH JL4) Diagnostic Instructions
2008 Chevrolet Silverado 1500 2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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 Descriptors DTC C0035 00 Left Front Wheel Speed Sensor Circuit DTC C0035 5A Left Front Wheel Speed Sensor Circuit Plausibility Failure DTC C0040 00 Right Front Wheel Speed Sensor Circuit DTC C0040 5A Right Front Wheel Speed Sensor Circuit Plausibility Failure Diagnostic Fault Information Circuit/System Description The wheel speed sensor receives ignition voltage from the electronic brake control module Conditions for Running the DTC Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance Left Front Sensor Signal Circuit C0035 00 C0035 00 C0035 00 C0035 5A Left Front Sensor 12 volt C0035 00 C0035 00 - C0035 5A Right Front Sensor Signal C0040 00 C0040 00 C0040 00 C0040 5A Right Front Sensor 12 volt C0040 00 C0040 00 - C0040 5A
2008 Chevrolet Silverado 1500 2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
C0035 00 or C0040 00 The ignition is ON. Ignition voltage is greater than 9.5 volts. C0035 5A or C0040 5A The ignition is ON. Ignition voltage is greater than 9.5 volts. The brake pedal is not pressed. A DTC is not set for the other wheel speed circuit on the same axle. Conditions for Setting the DTC An erratic signal output of the wheel speed sensor is detected. A short to ground, open/high resistance is detected on the wheel speed sensor signal circuit. A short to voltage, short to ground or an open/high resistance is detected on the low A missing wheel speed sensor signal Action Taken When the DTC Sets The amber ABS indicator turns ON. The Traction Control indicator turns ON. The driver information center (DIC) displays warning message. Conditions for Clearing the DTC The condition for setting the DTC is no longer present. The EBCM automatically clears the history DTC when a current DTC is not detected in 100 Diagnostic Aids Inspect the back of the wheel bearing on the encoder surface for metal debris that could If 2 or more wheel speed sensors are inoperative diagnose each wheel speed sensor
2008 Chevrolet Silverado 1500 2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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