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C1421 Lexus Code - Open or Short in Master Cylinder Pressure Sensor

- Code Popularity: 3,717 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C1421 Lexus?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Brake Actuator Assembly (Master Cylinder Pressure Sensor)
  • Brake Actuator Assembly harness is open or shorted
  • Brake Actuator Assembly circuit poor electrical connection
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How to Fix the DTC C1421 Lexus?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1421 Lexus code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

Code C1421 Lexus Description

The Master Cylinder Pressure Sensor is connected to the Skid Control ECU (Brake Actuator Assembly). The Skid Control ECU monitors the Master Cylinder Pressure Sensor. The Skid Control ECU sets the Diagnostic Trouble Code (DTC) when the Master Cylinder Pressure Sensor is not to factory specifications.

OBDII Code C1421 Lexus - Open or Short in Master Cylinder Pressure Sensor - AutoCodes.com
C1421 Lexus Code - Open or Short in Master Cylinder Pressure Sensor

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Code C1421 Lexus comments

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