← Back to Search Severity: Medium

C2136

C2136: Brake Booster Vacuum Switch Circuit Malfunction

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
✅ Yes
Save money
Category
Chassis
System

📖 What Does C2136 Mean?

The brake booster vacuum switch circuit has malfunctioned, preventing the brake booster from functioning properly, which can cause the brake pedal to feel spongy or soft.
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Symptoms

  • Spongy brake pedal
  • soft brake pedal
  • brake pedal travel increased
  • brake pedal travel decreased
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Common Causes

  • Faulty brake booster vacuum switch
  • vacuum leak in brake booster
  • faulty brake booster diaphragm
  • clogged brake booster vent
Fix Guide
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Possible Solutions

1. Disconnect battery negative cable. 2. Locate the brake booster vacuum switch and inspect for signs of damage or corrosion. 3. Clean or replace the vacuum switch as needed. 4. Inspect the brake booster vent for blockages and clean or replace as needed. 5. Reconnect battery negative cable.

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Common Questions About C2136

Q

Can I drive with code C2136?

A

You can drive for a short time, but should address code C2136 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix C2136?

A

The estimated repair cost for code C2136 is between $50 and $200. 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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Complex codes like C2136 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with C2136

💡 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