Engine-CodesGeneric – P1470

P1470 Code - Leakage Diagnostic Pump Control Circuit Electrical

Quick Answer

The P1470 code indicates a problem with the Leakage Diagnostic Pump Control Circuit Electrical in the vehicle. Common causes include Faulty leakage diagnostic pump, Damaged wiring or connectors in the control circuit, Corrosion or rust affecting electrical connections. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P1470 indicates Leakage Diagnostic Pump Control Circuit Electrical.
Common causes
Common causes include Faulty leakage diagnostic pump, Damaged wiring or connectors in the control circuit, Corrosion or rust affecting electrical connections.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P1470 Description

The P1470 code indicates a problem with the Leakage Diagnostic Pump Control Circuit Electrical in the vehicle. The leakage diagnostic pump is responsible for checking the fuel vapor system for leaks. When this system malfunctions, it can lead to issues with the vehicle's emissions, performance, and overall efficiency. The electrical circuit controls the pump's operation, and any faults in this circuit can prevent the pump from functioning correctly.

OBDII Code P1470 - Leakage Diagnostic Pump Control Circuit Electrical
P1470 Code - Leakage Diagnostic Pump Control Circuit Electrical

Common Causes of P1470

  1. Faulty leakage diagnostic pump.
  2. Damaged wiring or connectors in the control circuit.
  3. Corrosion or rust affecting electrical connections.
  4. Issues with the engine control module (ECM) related to the pump.
  5. Environmental factors such as moisture or debris causing circuit malfunctions.

Symptoms of P1470

  1. Check engine light is illuminated on the dashboard.
  2. Decreased fuel efficiency.
  3. Rough idling or engine stalling.
  4. Increased emissions.
  5. Vehicle may fail emissions test.

How to Fix P1470

  1. Use a diagnostic scanner to retrieve the P1470 code and identify the specific issue.
  2. Inspect the wiring and connectors in the control circuit for any damage or corrosion. Repair or replace as needed.
  3. Test the leakage diagnostic pump to ensure it is functioning correctly. Replace if necessary.
  4. Clear the code from the vehicle's computer system using the diagnostic scanner.
  5. Perform a test drive to ensure the issue has been resolved and the check engine light does not reappear.

Cost to Fix P1470

The typical repair costs for resolving a P1470 code can range from $100 to $500, depending on the specific cause of the issue and the cost of parts and labor in your area. Keep in mind that prices may vary based on the vehicle make and model, the location of the repair shop, and the extent of the necessary repairs. It is advisable to consult with a trusted mechanic or repair shop to get an accurate estimate for addressing this code.

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Code P1470 Information for Specific Makes

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.

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