Anti-Lock Brake System Component Testing

• DTC Index
  • ABS - Antilock Braking System
    • Notes
    • DTC B10DF: Master Cylinder Isolation Valve
      • Action
    • DTC B1111: Electric Park Brake Enable
    • DTC C0001: TCS Control Channel "A" Valve 1
      • Action
    • DTC C0002: TCS Control Channel "A" Valve 2
      • Action
    • DTC C0003: TCS Control Channel "B" Valve 1
      • Action
    • DTC C0004: TCS Control Channel "B" Valve 2
      • Action
    • DTC C0010: Left Front Inlet Control
      • Action
    • DTC C0011: Left Front Outlet Control
      • Action
    • DTC C0014: Right Front Inlet Control
      • Action
    • DTC C0015: Right Front Outlet Control
      • Action
    • DTC C0018: Left Rear Inlet Control
      • Action
    • DTC C0019: Left Rear Outlet Control
      • Action
    • DTC C001C: Right Rear Inlet Control
      • Action
    • DTC C001D: Right Rear Outlet Control
      • Action
    • DTC C0020: ABS Pump Motor Control
    • DTC C0021: Brake Booster
      • Description
    • DTC C0030: Left Front Tone Wheel
      • Action
    • DTC C0031: Left Front Wheel Speed Sensor
    • DTC C0032: Left Front Wheel Speed Sensor Supply
      • Description
    • DTC C0033: Right Front Tone Wheel
      • Action
    • DTC C0034: Right Front Wheel Speed Sensor
    • DTC C0035: Right Front
      • Notes
      • Description
    • DTC C0036: Left Rear Tone Wheel
      • Action
    • DTC C0037: Left Rear Wheel Speed Sensor
    • DTC C0038: Left Rear Wheel Speed Sensor Supply
      • Description
    • DTC C0039: Right Rear Tone Wheel
      • Action
    • DTC C003A: Right Rear Wheel Speed Sensor
    • DTC C003B: Right Rear Wheel Speed
      • Notes
      • Description
    • DTC C0040: Brake Pedal Switch "A"
      • Action
    • DTC C0044: Brake Pressure Sensor "A"
    • DTC C0047: Brake Booster Pressure Sensor
    • DTC C0051: Steering Wheel Position Sensor
    • DTC C0061: Lateral Acceleration Sensor
    • DTC C0062: Longitudinal Acceleration Sensor
    • DTC C0063: Yaw Rate Sensor
    • DTC C0064: Roll Rate Sensor
    • DTC C006A: Multi-axis Acceleration Sensor
      • Description
    • DTC C006B: Stability System Active Too Long
      • Description
      • Action
    • DTC C0072: Brake Temperature Too High
      • Action
    • DTC C0089: TCS Disable Switch
      • Description
    • DTC C1015: Vacuum Supply
    • DTC C101A: Vacuum Pressure Sensor
      • Description
    • DTC C101C: Brake Vacuum Pump
      • Description
    • DTC C101F: Generic Valve Failure
      • Description
    • DTC C1020: Brake System Fill Not Complete
      • Description
    • DTC C1034: Parking Brake
      • Action
    • DTC C1109: Vehicle Dynamics Control Switch
      • Description
    • DTC C1137: Reverse Gear Switch
      • Description
    • DTC C1A08: Pressure Sensor Supply
      • Action
    • DTC C1A43: Motor Supply
    • DTC C1A76: Valve Relay
      • Description
    • DTC C1A77: Valve Relay Supply Circuit
      • Description
    • DTC C1A78: Left Front Inlet Valve
      • Description
    • DTC C1A79: Left Front Outlet Valve
      • Description
    • DTC C1A80: Right Front Inlet Valve
      • Description
    • DTC C1A81: Right Front Outlet Valve
      • Description
    • DTC C1A82: Left Rear Inlet Valve
      • Description
    • DTC C1A83: Left Rear Outlet Valve
      • Description
    • DTC C1A84: Right Rear Inlet Valve
      • Description
    • DTC C1A85: Right Rear Outlet Valve
      • Description
    • DTC C1A90: Wheel Speed Sensor Supply
      • Description
    • DTC C1A95: Wheel Speed Sensor
      • Description
    • DTC C1A99: Pressure Sensor
      • Description
    • DTC C1B02: Return Pump
      • Description
    • DTC C1B14: Sensor Supply Voltage "A"
    • DTC C1B15: Sensor Supply Voltage "B"
      • Action
    • DTC C2005: Right Actuator
    • DTC C2006: Left Actuator
    • DTC C2007: Right Motor
    • DTC C2008: Left Motor
    • DTC P050F: Brake Assist Vacuum Too Low
      • Description
    • DTC P0604: Internal Control Module Random Access Memory (RAM) Error
      • Description
    • DTC P062F: Internal Control Module EEPROM Error
      • Description
    • DTC P0942: Hydraulic Pressure Unit
    • DTC P1571: Brake Switch
      • Description
    • DTC P193B: Throttle/Pedal Signal
    • DTC P258A: Vacuum Pump Control Circuit "A"/Open
      • Description
    • DTC U0001: High Speed CAN Communication Bus
    • DTC U0073: Control Module Communication Bus "A" Off
      • Description
    • DTC U0074: Control Module Communication Bus "B" Off
      • Description
    • DTC U0100: Lost Communication With ECM/PCM "A"
      • Action
    • DTC U0101: Lost Communication With TCM
      • Description
    • DTC U0102: Lost Communication with Transfer Case Control Module: No Sub Type Information
      • Action
    • DTC U0103: Lost Communication With Gear Shift Control Module A: No Sub Type Information
      • Action
    • DTC U0104: Lost Communication With Cruise Control Module
      • Action
    • DTC U0125: Lost Communication With Multiaxis Acceleration Sensor Module
      • Description
    • DTC U0126: Lost Communication With Steering Angle Sensor Module
      • Action
    • DTC U0128: Lost Communication With Park Brake Control Module
      • Description
    • DTC U0131: Lost Communication With Power Steering Control Module
      • Action
    • DTC U0137: Lost Communication With Trailer Brake Control Module
      • Description
    • DTC U0138: Lost Communication With All Terrain Control Module
      • Description
    • DTC U0140: Lost Communication With Body Control Module
      • Action
    • DTC U0151: Lost Communication With Restraints Control Module
    • DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
      • Action
    • DTC U0256: Lost Communication With Front Controls Interface Module "A"
      • Action
    • DTC U0300: Internal Control Module Software Incompatibility
      • Action
    • DTC U0401: Invalid Data Received From ECM/PCM "A"
    • DTC U0402: Invalid Data Received From
      • Notes
      • Description
    • DTC U0403: Invalid Data Received From Transfer Case Control Module: No Sub Type Information
      • Action
    • DTC U0404: Invalid Data Received from Gear Shift Control Module A: Signal Invalid
      • Action
    • DTC U0405: Invalid Data Received From Cruise Control Module
    • DTC U0420: Invalid Data Received From PSCM (power steering control module)
    • DTC U0422: Invalid Data Received From Body Control Module
    • DTC U0428: Invalid Data Received From Steering Angle Sensor Module
    • DTC U0439: Invalid Data Received from the All Terrain Control Module
      • Description
    • DTC U0452: Invalid Data Received From Restraints Control Module
    • DTC U0513: Invalid Data Received From Yaw Rate Sensor Module
      • Description
    • DTC U0557: Invalid Data Received From Front Controls Interface Module "A"
    • DTC U1A14: CAN Initialization Failure
      • Description
    • DTC U2001: Reduced System Function
      • Description
    • DTC U2002: Switch
    • DTC U2007: Valve(s)
    • DTC U2012: Car Configuration Parameter(s)
      • Description
    • DTC U2017: Control Module Software #2
      • Description
    • DTC U2024: Control Module Cal-Config Data
    • DTC U2100: Initial Configuration Not Complete
      • Action
    • DTC U2101: Control Module Configuration Incompatible
      • Action
    • DTC U2107: Collision Mitigation By Braking
    • DTC U2108: Adaptive Cruise Control
    • DTC U2200: Control Module Configuration Memory Corrupt
      • Action
    • DTC U2300: Central Configuration
      • Description
    • DTC U3000: Control Module
    • DTC U3002: Vehicle Identification Number
      • Action
    • DTC U3003: Battery Voltage
    • DTC U300A: Ignition Switch
      • Action
    • DTC U3013: Control Module Input Power "C"
      • Description
  • PCM - Powertrain Control Module
    • Notes
    • DTC P0555: Brake Booster Pressure Sensor Circuit
      • Description
    • DTC P0556: Brake Booster Pressure Sensor Circuit Range/Performance
      • Description
    • DTC P0557: Brake Booster Pressure Sensor Circuit Low
      • Description
    • DTC P0558: Brake Booster Pressure Sensor Circuit High
      • Description
    • DTC P0559: Brake Booster Pressure Sensor Circuit Intermittent
      • Description
    • DTC P05FF: Brake Pressure Sensor/Brake Pedal Position Sensor Correlation
      • Description
    • DTC P103C: Aspirator Valve Control Circuit/Open
      • Description
    • DTC P103D: Aspirator Valve Control Circuit Low
      • Description
    • DTC P103E
      • Description
    • DTC P1501: Vehicle Speed Sensor Out of Self Test Range
      • Action
    • DTC P193C: Steering Wheel Angle Signal
      • Description
  • SASM - Steering Angle Sensor Module
    • DTC B1016: Status Switch
    • DTC C1B00: Steering Angle Sensor
    • DTC U0001: High Speed CAN Communication Bus
    • DTC U0100: Lost Communication With ECM/PCM "A"
      • Action
    • DTC U0121: Lost Communication With Anti-Lock Brake System (ABS) Control Module
      • Action
    • DTC U0122: Lost Communication With Vehicle Dynamics Control Module
      • Action
    • DTC U0130: Lost Communication With Steering Effort Control Module
      • Action
    • DTC U0140: Lost Communication With Body Control Module
      • Description
    • DTC U0146: Lost Communication With Gateway "A"
      • Action
    • DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
      • Action
    • DTC U0253: Lost Communication With Accessory Protocol Interface Module: No Sub Type Information
      • Action
    • DTC U0300: Internal Control Module Software Incompatibility
      • Description
    • DTC U0401: Invalid Data Received from ECM/PCM A
    • DTC U0415: Invalid Data Received From Anti-Lock Brake System (ABS) Control Module
      • Action
    • DTC U0422: Invalid Data Received From Body Control Module
      • Action
    • DTC U0423: Invalid Data Received from Instrument Panel Cluster Control Module
      • Action
    • DTC U0461: Invalid Data Received From Audible Alert Control Module
    • DTC U0554: Invalid Data Received from Accessory Protocol Interface Module
      • Action
    • DTC U0556: Invalid Data Received From Front Display Interface Module
      • Action
    • DTC U1000: Solid State Driver Protection Active-Driver Disabled
      • Action
    • DTC U2001: Reduced System Function
      • Action
    • DTC U2002: Switch
      • Action
    • DTC U2016: Control Module Main Software
      • Action
    • DTC U2100: Initial Configuration Not Complete
      • Action
    • DTC U2101: Control Module Configuration Incompatible
      • Description
    • DTC U210A: Temperature Sensor
      • Action
    • DTC U2200: Control Module Configuration Memory Corrupt
    • DTC U3000: Control Module
    • DTC U3003: Battery Voltage
    • DTC U3011: Ignition Input Off
      • Action
  • SCCM - Steering Column Control Module
    • DTC C1B00: Steering Angle Sensor
  • Symptom Chart
    • Notes
    • The ABS module does not respond to the diagnostic scan tool
    • The SASM does not respond to the diagnostic scan tool
    • Parking brake fault
    • The brake warning indicator is always or never on
    • The ABS warning indicator is always or never on
    • The stability-traction control indicator (sliding-car icon) is always on or never on
    • ABS false activation, ABS too sensitive, ABS activates on normal stop
    • The traction control system is inoperative or cannot be disabled using the message center
    • The auto hold feature is inoperative, cannot be disabled or enabled
    • The hill start assist feature is inoperative, cannot be disabled or enabled
• Pinpoint Tests
  • Pinpoint Tests A: ABS Module Low Voltage Concern
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests AA: Steering Angle Reset DTC
    • Possible Causes
  • Pinpoint Tests AB: Wheel Speed Sensor Erratic Signal DTCs
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AC: Brake Pedal Input Concern
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests AD: Stability System Active Too Long Concern
    • Possible Causes
  • Pinpoint Tests AE: ABS Module Communication Concern With PSCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AF: ABS Module VIN Mismatch
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AG: Stability Control Sensor Signal Failure Faults
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AH: Brake Booster Vacuum Supply Faults
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AI: ABS Module Communication Concern With PCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AJ: Steering Wheel Position Sensor Signal Fault
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AK: Calibration Fault Between The ABS Module And The HCU
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AL: Incorrect Wheel Speed Sensor Fault
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AM: Brake Pressure Sensor Fault
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AN: IVD Initialization Fault
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AO: RCM Installed Incorrectly Concern
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AP: ABS Overheat Concern With CCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AQ: Cruise Control Braking Fault
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AR: ABS Module Communication Concern With IPC
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AS: ABS Module Communication Concern With FCIM
  • Pinpoint Tests AT: The ABS Module Does Not Respond To The Diagnostic Scan Tool
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AU: ABS Module Communication Concern With The 4WD Module
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AV: ABS Module Communication Concern With The GSM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AW: SASM Communication Concern With PCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AX: SASM Communication Concern With ABS Module
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AY: SASM Communication Concern With VDM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests AZ: SASM Communication Concern With SECM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests B: Wheel Speed Sensor Erratic Signal Faults
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BA: SASM Communication Concern With GWM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BB: SASM Communication Concern With IPC
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BC: SASM Communication Concern With APIM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BD: SASM Low Voltage Concern
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests BE: SASM High Voltage Concern
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BF: ABS False Activation, ABS Too Sensitive, ABS Activates On Normal Stop
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BG: The Traction Control System Cannot Be Disabled Using The Traction Control Switch
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BH: ABS Module Communication Concern With The RCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BJ: ABS Module Communication Concern With The IPC
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BK: ABS Module Communication Concern With SASM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests BL: SASM Ignition Input Circuit Fault
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests BM: Lost Communication With ATCM Concern
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests C: Brake Booster Vacuum Sensor Faults
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests CA: Brake Booster Vacuum Sensor Circuit Faults
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests CB: Brake Booster Low Vacuum Fault
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests CC: Aspirator Valve Control Circuit Faults
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests CD: Valve Relay Supply Circuit Fault
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Sources
  • Pinpoint Tests D: ABS Module Communication Concern With BCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests E: The Traction Control System Is Inoperative Or Cannot Be Disabled Using The Message Center
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests F: ABS Module High Voltage Concern
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests G: Stability Control Sensor Signal Failure Faults
    • Notes
    • Normal Operation and Fault Conditions
  • Pinpoint Tests H: HCU Pump Faults
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests I: ABS Module Communication Concern With PCM - TCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests J: ABS Module Communication Concern With SASM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests K: SASM Battery Voltage Signal Compare Concern
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests L: SASM Signal Failure Faults
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests LA: Steering Wheel Position Sensor Signal Fault
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests LB: Steering Wheel Position Sensor Faults
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests M: Front Wheel Speed Sensor Electrical Faults
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests MA: Front Wheel Speed Sensor Electrical Faults
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests N: Rear Wheel Speed Sensor Electrical Faults
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests NA: Rear Wheel Speed Sensor Electrical Faults
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests O: The Traction Control System Is Inoperative Or Cannot Be Disabled Using The Traction Control Switch
  • Pinpoint Tests OA: The Hill Descent Control System Is Inoperative Or Cannot Be Disabled
  • Pinpoint Tests P: SASM Incompatibility Concern
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests Q: ABS Module Communication Concern With TCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests QA: ABS Module Communication Concern With The TCCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests R: ABS Module Communication Concern With CCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests S: ABS Module Communication Concern With TBM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests SA: ABS Module Communication Concern With The Park Brake Control Module
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests T: SASM Communication Concern With BCM
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests U: The Brake Booster Vacuum Pump Is Inoperative
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests UA: The Brake Vacuum Pump Is Inoperative
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Sources
  • Pinpoint Tests V: The Brake Booster Vacuum Pump Runs Continuously
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-checks
  • Pinpoint Tests VA: The Brake Vacuum Pump Runs Continuously
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Sources
  • Pinpoint Tests W: The Traction Control Switch LED Indicator Is Always On Or Never On
    • Notes
    • Normal Operation and Fault Conditions
    • Possible Causes
    • Visual Inspection and Diagnostic Pre-Checks
  • Pinpoint Tests X: ABS Temperature Too High
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests Y: ABS Module Internal Fault Concern
    • Normal Operation and Fault Conditions
    • Possible Causes
  • Pinpoint Tests Z: ABS Module Configuration Concern
    • Normal Operation and Fault Conditions
    • Possible Causes