AutoCodes – Generic – C1475

C1475 Code - High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure

Quick Answer

The Hydraulic Control Unit (HCU) monitors the High Pressure Accumulator (HPA) Sensor. Common causes include Faulty Hydraulic Control Unit (HCU), Hydraulic Control Unit (HCU) harness is open or shorted, Hydraulic Control Unit (HCU) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C1475 indicates High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure.
Common causes
Common causes include Faulty Hydraulic Control Unit (HCU), Hydraulic Control Unit (HCU) harness is open or shorted, Hydraulic Control Unit (HCU) circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 2,006
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Oct 14, 2020
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Code C1475 Description

The Hydraulic Control Unit (HCU) monitors the High Pressure Accumulator (HPA) Sensor. The HCU sets the OBDII code when the High Pressure Accumulator (HPA) Sensor is not to factory specifications.
OBDII Code C1475 - High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure - AutoCodes.com
C1475 Code - High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure

What are the Possible Causes of the DTC C1475?

  • Faulty Hydraulic Control Unit (HCU)
  • Hydraulic Control Unit (HCU) harness is open or shorted
  • Hydraulic Control Unit (HCU) circuit poor electrical connection

How to Fix the DTC C1475?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1475 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1475 code?

Need more information on how to fix the C1475 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1475 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • C1475 Ford β€” High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure
  • C1475 Lincoln β€” High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure
  • C1475 Mercury β€” High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1475 Code

1. What are common symptoms of OBDII code C1475?

The common symptoms of OBDII code C1475 include a Check Engine Light (CEL) illuminated on the dashboard, reduced engine performance, and potential issues with the vehicle's braking system.

2. What causes the OBDII code C1475 to occur?

The OBDII code C1475, High Pressure Accumulator Pressure/Volume/Temperature Plausibility Failure, can be triggered by issues with the high-pressure accumulator in the braking system, such as leaks, sensor malfunctions, or pressure imbalances.

3. How can I diagnose the OBDII code C1475?

Diagnosing OBDII code C1475 typically involves using a professional OBDII scanner to read the fault codes, conducting a visual inspection of the braking system components, and performing pressure tests to identify any abnormalities in the high-pressure accumulator.

4. Can I continue driving with OBDII code C1475 present?

It is not recommended to continue driving with OBDII code C1475 active, as it can indicate potential safety risks related to the braking system. It is advisable to address the issue promptly to ensure the vehicle's safety and performance.

5. How can I repair OBDII code C1475?

Repairing OBDII code C1475 may involve replacing faulty high-pressure accumulator components, repairing any leaks, recalibrating sensors, or resetting the fault code using a diagnostic tool. It is recommended to seek professional assistance for accurate diagnosis and repair.

6. Is OBDII code C1475 a serious issue?

OBDII code C1475 should be taken seriously, as it pertains to the braking system's high-pressure accumulator, which is crucial for safe braking performance. Ignoring this code can lead to potential safety hazards and should be addressed promptly.

7. Can weather conditions affect the occurrence of OBDII code C1475?

Extreme weather conditions, such as temperature fluctuations, can sometimes trigger OBDII code C1475 due to the impact on the high-pressure accumulator's performance. It is essential to monitor the system and address any issues promptly.

8. Are there any preventative measures to avoid OBDII code C1475?

Regular maintenance of the braking system, including checking for leaks, monitoring pressure levels, and ensuring proper sensor function, can help prevent issues that may trigger OBDII code C1475. Following the manufacturer's recommended service intervals is also crucial.

9. Can OBDII code C1475 be intermittent?

Yes, OBDII code C1475 can sometimes be intermittent, especially if the issue is related to sensor malfunctions or temporary pressure imbalances. It is essential to monitor the system closely and address any recurring faults promptly.

10. How much does it cost to repair OBDII code C1475?

The cost of repairing OBDII code C1475 can vary depending on the extent of the issue, the specific components that need to be replaced or repaired, and the labor rates of the service provider. It is recommended to obtain quotes from trusted automotive professionals for accurate cost estimation.

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