what does the C1234 code mean for my Genesis G70 IG (2017-2023)?

Learn how to diagnose and fix C1234 ABS malfunction in Genesis G70 (2017-2023). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Wheel Speed Sensors

• Sub-steps:
  1. Lift the vehicle using a jack and secure it with jack stands.
  2. Remove the wheel corresponding to the faulty sensor as indicated by diagnostic steps.
  3. Locate the wheel speed sensor on the wheel hub assembly.
  4. Disconnect the sensor's electrical connector.
  5. Remove the sensor from its mounting point (usually secured with a bolt).
  6. Install the new wheel speed sensor by reversing the removal steps.
  7. Reconnect the electrical connector ensuring a secure fit.

3. Check ABS Control Module Connections

• Sub-steps:
  1. Locate the ABS control module, typically found near the master cylinder.
  2. Inspect the connectors for any signs of corrosion or loose connections.
  3. Clean the connectors with electrical contact cleaner if necessary.
  4. Reconnect the connectors securely.

4. Reassemble and Test

• Sub-steps:
  1. Reinstall the wheel and lower the vehicle back to the ground.
  2. Reconnect the battery.
  3. Start the vehicle and check for any warning lights.
  4. Conduct a test drive to ensure the ABS and traction control systems are functioning properly.