C0340 moderate

Parking Brake Pedal Switch Circuit

The C0340 code means the vehicle's onboard diagnostic system has detected: Parking Brake Pedal Switch Circuit. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
moderate
Estimated cost
$100 - $400 (parts and labor)
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Common Symptoms

  • Parking brake warning light on
  • Parking brake does not hold
  • Parking brake drags when released
  • Rear brake noise when parking brake applied

Probable Causes (Ranked by Likelihood)

  • Failed parking brake switch Very High
  • Stretched parking brake cable High
  • Worn parking brake shoes or pads Moderate
  • Stuck parking brake adjuster Low

Step-by-Step Diagnostic Procedure

  1. Check parking brake switch operation

  2. Inspect parking brake cables for damage

  3. Measure parking brake shoe thickness

  4. Test parking brake holding force

Frequently Asked Questions

What does code C0340 mean?

C0340 indicates a fault with the parking brake pedal switch circuit system in your vehicle.

Can I drive with C0340?

You can drive short distances but have the system inspected soon.

How much does it cost to fix C0340?

Typical repair costs are $100 - $400 (parts and labor).

Sources

This page is built from documented references. Verify against your own service info before repair work.

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