Automotive Flow Chart

ABS and Traction Control Diagnostic Flowchart

A comprehensive troubleshooting guide for ABS and Traction Control systems, covering wheel speed sensors, hydraulic components, control modules, and system diagnostics

flowchart TD
    A[ABS/Traction Warning] --> B[Scan for Codes]
    B -->|Wheel Speed Sensor| C[Check Sensors]
    B -->|Hydraulic Issue| D[Check Pump/Valves]
    B -->|Module Issue| E[Check Module]

    C -->|Circuit Open| C1[Check Wiring]
    C -->|Dirty Sensor| C2[Clean/Inspect]
    C -->|Gap Issue| C3[Check Tone Ring]
    C1 -->|Broken Wire| C4[Repair Wiring]
    C2 -->|Damaged| C5[Replace Sensor]

    D -->|No Pressure| D1[Check Pump]
    D -->|Valve Issue| D2[Check Solenoids]
    D -->|Return Issue| D3[Check Return]
    D1 -->|Failed Pump| D4[Replace Pump]
    D2 -->|Bad Valve| D5[Replace Valve]

    E -->|No Communication| E1[Check Power/Ground]
    E -->|Internal Fault| E2[Module Test]
    E -->|Configuration| E3[Check Programming]
    E1 -->|No Power| E4[Repair Circuit]
    E2 -->|Failed| E5[Replace Module]

    C3 -->|Damaged Ring| C6[Replace Ring]
    D3 -->|Blocked| D6[Clean/Replace]
    E3 -->|Corrupted| E6[Reprogram]

    F[Traction Control] -->|Activation Issues| G[Check Inputs]
    G -->|Wheel Speed| G1[Check Sensors]
    G -->|Throttle Input| G2[Check Throttle]
    G -->|Yaw/Steering| G3[Check Angle Sensor]
    G1 -->|Bad Data| G4[Replace Sensor]
    G2 -->|Bad Signal| G5[Check Position Sensor]
    G3 -->|Misaligned| G6[Calibrate System]