C1423 The master cylinder pressure sensor reads below its zero point

Category
Chassis
Severity
ABS Light
Applies to
Toyota, Lexus and Scion models that use this code

What does C1423 mean on a Toyota?

C1423. The master cylinder pressure sensor reads below its zero point. Brake assist is disabled and the ABS warning light comes on.. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of C1423

How to fix C1423

  1. Confirm the code with a scan tool
  2. Inspect the sensor and its connector
  3. Test the sensor circuit for opens and shorts
  4. Check sensor power and ground
  5. Replace the sensor only after the circuit tests fail
  6. Clear the code and retest