C1257 Scion Code - Power Supply Drive Circuit
Quick Answer
The Master Cylinder Solenoid (Skid Control ECU) monitors the Brake Booster Pump Assembly. Common causes include Faulty Brake Booster Pump Assembly, Brake Booster Pump Assembly harness is open or shorted, Brake Booster Pump Assembly circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1257 Scion indicates Power Supply Drive Circuit.
- Common causes
- Common causes include Faulty Brake Booster Pump Assembly, Brake Booster Pump Assembly harness is open or shorted, Brake Booster Pump Assembly circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1257 Scion Description
What are the Possible Causes of the DTC C1257 Scion?
- 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)
How to Fix the DTC C1257 Scion?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1257 Scion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the C1257 Scion code?
Need more information on how to fix the C1257 Scion code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1257 Scion code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C1257 Scion Code
1. What does the OBDII code C1257 mean on a Scion?
C1257 refers to a "Power Supply Drive Circuit" issue, typically related to the ABS or traction control system.
2. What are the common symptoms of code C1257 in a Scion?
Symptoms may include the ABS warning light or traction control light illuminating, reduced braking performance, or disabled stability control features.
3. What causes the C1257 code to appear in a Scion?
Common causes include a faulty ABS control module, issues with the power supply to the ABS system, damaged wiring, or a weak battery.
4. Can a low or weak battery cause code C1257 in a Scion?
Yes, a weak or failing battery can disrupt the power supply to the ABS system, triggering the C1257 code.
5. How do you diagnose a C1257 code on a Scion?
Start by checking the battery voltage, inspecting ABS-related fuses and wiring, and scanning for additional codes to pinpoint the source of the problem.
6. Can you drive a Scion with code C1257?
While the car may still be drivable, safety features like ABS and traction control may not function properly, increasing the risk of reduced control in certain conditions.
7. How do you fix the C1257 code on a Scion?
Repairs may involve replacing a faulty ABS control module, repairing damaged wiring, cleaning or tightening battery terminals, or addressing power supply issues.
8. Will clearing the C1257 code solve the problem?
Clearing the code without addressing the underlying issue will only temporarily remove the warning, and the code is likely to return.
9. Is the ABS control module the most common cause of code C1257 in a Scion?
Yes, a malfunctioning ABS control module is a frequent cause, but power supply issues or wiring problems should also be ruled out.
10. How much does it cost to repair a C1257 code on a Scion?
Repair costs can vary, ranging from $50-$150 for minor fixes like wiring repairs to $500-$1,000 if the ABS control module needs replacement.
Discuss the causes and fixes for C1257 Scion OBDII Code
Code C1257 Scion comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
