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C1257 Toyota Code - Power Supply Drive Circuit

- Code Popularity: 2,647 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C1257 Toyota?

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 Booster Pump Assembly
  • Brake Booster Pump Assembly harness is open or shorted
  • Brake Booster Pump Assembly circuit poor electrical connection
  • Faulty Master Cylinder Solenoid (Skid Control ECU)
⚠ Does your Toyota have Safety Recalls? → Check here

How to Fix the DTC C1257 Toyota?

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 C1257 Toyota 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 C1257 Toyota Description

The Master Cylinder Solenoid (Skid Control ECU) monitors the Brake Booster Pump Assembly. The Master Cylinder Solenoid (Skid Control ECU) sets the OBDII code when the Brake Booster Pump Assembly is not to factory specifications.

OBDII Code C1257 Toyota - Power Supply Drive Circuit - AutoCodes.com
C1257 Toyota Code - Power Supply Drive Circuit

Need More Information on the Code?

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Code C1257 Toyota comments

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