AutoCodesMazda – P1485 Mazda

P1485 Mazda Code - EGRV Circuit Out Of Range

Quick Answer

P1485 Mazda indicates EGRV Circuit Out Of Range. Common causes include Faulty Engine Gas Recirculation Valve (EGRV), EGRV harness is open or shorted, EGRV circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P1485 Mazda indicates EGRV Circuit Out Of Range.
Common causes
Common causes include Faulty Engine Gas Recirculation Valve (EGRV), EGRV harness is open or shorted, EGRV circuit poor electrical connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code Popularity 2,869
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 24, 2019
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Code P1485 Mazda Description

OBDII Code P1485 Mazda - EGRV Circuit Out Of Range - AutoCodes.com
P1485 Mazda Code - EGRV Circuit Out Of Range

What are the Possible Causes of the DTC P1485 Mazda?

  • Faulty Engine Gas Recirculation Valve (EGRV)
  • EGRV harness is open or shorted
  • EGRV circuit poor electrical connection

How to Fix the DTC P1485 Mazda?

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 P1485 Mazda 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.

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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 P1485 Mazda Code

What does the OBDII code P1485 mean for a Mazda?

It indicates an issue with the EGRV (Exhaust Gas Recirculation Valve) circuit, specifically that it is out of the expected range.

What are the common symptoms of the P1485 code in a Mazda?

Symptoms may include a check engine light, reduced engine performance, rough idling, and increased emissions.

What causes the P1485 code on a Mazda?

Common causes include a faulty EGR valve, damaged wiring or connectors in the EGR circuit, or issues with the PCM (Powertrain Control Module).

Can a damaged EGR valve trigger the P1485 code?

Yes, a malfunctioning EGR valve can prevent proper operation and lead to the P1485 code.

How can I diagnose the P1485 code on my Mazda?

Start by inspecting the EGR valve, wiring, and connectors for damage or corrosion. Use a multimeter to test electrical continuity and check for proper voltage readings.

Can I drive my Mazda with the P1485 code?

It’s possible to drive, but doing so may lead to reduced engine performance, higher emissions, or potential long-term damage if the issue isn’t resolved.

How do I fix the P1485 code in a Mazda?

Repairs may involve cleaning or replacing the EGR valve, repairing damaged wiring or connectors, or reprogramming the PCM if necessary.

How much does it cost to repair the P1485 code on a Mazda?

Costs vary but typically range from $150 to $600, depending on whether the EGR valve needs replacement or if electrical repairs are required.

Can a dirty EGR valve cause the P1485 code in a Mazda?

Yes, a clogged or dirty EGR valve can restrict proper operation and cause the circuit to go out of range.

Should I reset the PCM after fixing the P1485 code?

Yes, clearing the code with an OBDII scanner after repairs ensures the PCM can recheck the system and verify the issue is resolved.

Discuss the causes and fixes for P1485 Mazda OBDII Code

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