← Back to Search Severity: Medium

C1345

C1345: Brake System Pressure Sensor Circuit Malfunction

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Chassis
System

📖 What Does C1345 Mean?

The brake system pressure sensor circuit has malfunctioned, causing the brake system to malfunction. This can cause the brake pedal to feel spongy or soft.
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Symptoms

  • Spongy brake pedal
  • soft brake pedal
  • brake pedal may feel like it's sinking
  • brake pedal may feel like it's not responding
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Common Causes

  • Faulty brake system pressure sensor
  • faulty wiring harness
  • faulty brake master cylinder
  • air in the brake system
Fix Guide
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Possible Solutions

1. Check the brake system pressure sensor for any signs of damage or corrosion. Replace if necessary. 2. Check the wiring harness for any signs of damage or corrosion. Repair or replace if necessary. 3. Bleed the brake system to remove any air that may be present. 4. Check the brake master cylinder for any signs of damage or corrosion. Replace if necessary.

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Common Questions About C1345

Q

Can I drive with code C1345?

A

You can drive for a short time, but should address code C1345 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix C1345?

A

The estimated repair cost for code C1345 is between $100 and $500. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.

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Related Diagnostic Codes

Other codes that may appear with C1345

💡 Why These Codes Are Related:

  • Similar Issues: Same root cause or component failure
  • Related Problems: Often occur together due to system interactions
  • Sequential Codes: Progressive failure stages or multiple sensors
  • Same System: Components within the same automotive system