OBD Guide

C1475

High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure

C1475 is an OBD-II diagnostic trouble code meaning: High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure. Common causes: malfunction of pressure, volume or temperature sensors, fluid leak in high pressure system. Estimated repair cost: $167–500.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–500 (est.)

Symptoms

  • The brake system fault indicator is on
  • Reduced braking performance
  • Unusual noises when the system is operating

Causes

  • Malfunction of pressure, volume or temperature sensors
  • Fluid leak in high pressure system
  • Problems with wiring harness or contacts
  • Malfunction of the electronic control unit (ECU)

How to Fix

  1. Diagnose the system using an OBD-II scanner
  2. Check the integrity of the wiring harness and connections
  3. Check pressure, volume and temperature sensors
  4. Eliminate leaks in the system if found
  5. Replace faulty components
  6. Reset error and test drive

Related codes

FAQ

What does the C1475 code mean?

C1475 is an OBD-II diagnostic trouble code that indicates: High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure

What causes a C1475 error code?

The most common causes of C1475 include: Malfunction of pressure, volume or temperature sensors; Fluid leak in high pressure system; Problems with wiring harness or contacts; Malfunction of the electronic control unit (ECU).

How do I fix a C1475 diagnostic trouble code?

To fix C1475: Diagnose the system using an OBD-II scanner. Check the integrity of the wiring harness and connections. Check pressure, volume and temperature sensors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1475?

Limited driving only, diagnose soon

How much does it cost to fix C1475?

The estimated repair cost for C1475 is $167–500. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat