AutoCodes – Mitsubishi – P1490 Mitsubishi

P1490 Mitsubishi Code - Low Speed Radiator Fan Control Relay Condition

Quick Answer

P1490 Mitsubishi indicates Low Speed Radiator Fan Control Relay Condition. Common causes include Faulty Radiator Fan Control Relay, Radiator Fan Control Relay harness is open or shorted, Radiator Fan Control Relay 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: P1490 Mitsubishi indicates Low Speed Radiator Fan Control Relay Condition.
Common causes: Common causes include Faulty Radiator Fan Control Relay, Radiator Fan Control Relay harness is open or shorted, Radiator Fan Control Relay 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 11,092

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1490 Mitsubishi Description

OBDII Code P1490 Mitsubishi - Low Speed Radiator Fan Control Relay Condition - AutoCodes.com — P1490 Mitsubishi Code - Low Speed Radiator Fan Control Relay Condition

What does this mean?

What are the Possible Causes of the DTC P1490 Mitsubishi?

Faulty Radiator Fan Control Relay
Radiator Fan Control Relay harness is open or shorted
Radiator Fan Control Relay circuit poor electrical connection

How to Fix the DTC P1490 Mitsubishi?

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 P1490 Mitsubishi 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 P1490 Mitsubishi code?

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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 P1490 Mitsubishi Code

1. What are the common symptoms of OBDII code P1490 in a Mitsubishi related to the Low Speed Radiator Fan Control Relay Condition?

- Common symptoms include overheating of the engine, frequent activation of the radiator fan, and potential issues with the air conditioning system.

2. What is the typical cause of OBDII code P1490 in a Mitsubishi indicating a Low Speed Radiator Fan Control Relay Condition?

- The most common cause is a malfunctioning radiator fan control relay, which fails to properly regulate the fan speed based on engine temperature.

3. How can I diagnose the Low Speed Radiator Fan Control Relay Condition related to OBDII code P1490 in a Mitsubishi?

- Use a multimeter to test the continuity of the relay, check for any loose or damaged wiring connections, and confirm proper operation of the fan itself.

4. Can a faulty temperature sensor trigger OBDII code P1490 in a Mitsubishi for the Low Speed Radiator Fan Control Relay Condition?

- Yes, a malfunctioning temperature sensor can provide inaccurate readings to the control unit, leading to improper fan operation and the triggering of the code.

5. Is it safe to continue driving with OBDII code P1490 indicating a Low Speed Radiator Fan Control Relay Condition in a Mitsubishi?

- It is not recommended to drive the vehicle with this code active, as overheating can cause severe damage to the engine and other components.

6. What are some repair tips for addressing OBDII code P1490 related to the Low Speed Radiator Fan Control Relay Condition in a Mitsubishi?

- Start by checking and potentially replacing the radiator fan control relay, inspecting the wiring for any issues, and ensuring the fan itself is functioning correctly.

7. Can resetting the OBDII system clear the P1490 code related to the Low Speed Radiator Fan Control Relay Condition in a Mitsubishi?

- While clearing the code may temporarily turn off the check engine light, it will not fix the underlying issue causing the code to appear.

8. How much does it typically cost to repair OBDII code P1490 due to the Low Speed Radiator Fan Control Relay Condition in a Mitsubishi?

- The cost can vary depending on the specific repairs needed, but it may range from around $100 for a simple relay replacement to a few hundred dollars if additional components require attention.

9. Are there any preventive maintenance steps to avoid encountering OBDII code P1490 related to the Low Speed Radiator Fan Control Relay Condition in a Mitsubishi?

- Regularly inspecting the cooling system, including the radiator fan and related components, can help catch any issues early and prevent the code from appearing.

10. Can a professional mechanic help diagnose and repair OBDII code P1490 in a Mitsubishi due to the Low Speed Radiator Fan Control Relay Condition?

- Yes, a qualified mechanic can use diagnostic tools and expertise to accurately diagnose the issue, recommend the necessary repairs, and ensure proper resolution of the code.