OBD Guide

C2805

Brake Pressure Transducer Ground Circuit Short To Battery

C2805 is an OBD-II diagnostic trouble code meaning: Brake Pressure Transducer Ground Circuit Short To Battery. Common causes: wiring harness damage, short circuit in the sensor circuit. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The brake system fault indicator is on
  • Incorrect operation of ABS or ESP
  • Reduced braking performance

Causes

  • Wiring harness damage
  • Short circuit in the sensor circuit
  • Brake pressure sensor malfunction
  • Oxidation or corrosion of contacts

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the resistance and continuity of the sensor ground circuit
  3. Replace brake pressure sensor if necessary
  4. Clear and fix contacts

Related codes

FAQ

What does the C2805 code mean?

C2805 is an OBD-II diagnostic trouble code that indicates: Brake Pressure Transducer Ground Circuit Short To Battery

What causes a C2805 error code?

The most common causes of C2805 include: Wiring harness damage; Short circuit in the sensor circuit; Brake pressure sensor malfunction; Oxidation or corrosion of contacts.

How do I fix a C2805 diagnostic trouble code?

To fix C2805: Check the integrity of the wiring harness. Check the resistance and continuity of the sensor ground circuit. Replace brake pressure sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C2805?

Limited driving only, diagnose soon

How much does it cost to fix C2805?

The estimated repair cost for C2805 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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