AutoCodes – Mitsubishi – P0690 Mitsubishi

P0690 Mitsubishi Code - Electronic Control Module Power Relay Sense Circuit High

Quick Answer

The Engine Control Module (ECM) monitors the power inputs. Common causes include Faulty Engine Control Module (ECM) relay, Faulty ECM, ECM harness is open or shorted. 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: P0690 Mitsubishi indicates Electronic Control Module Power Relay Sense Circuit High.
Common causes: Common causes include Faulty Engine Control Module (ECM) relay, Faulty ECM, ECM harness is open or shorted.
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 3,244

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 May 05, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0690 Mitsubishi Description

The Engine Control Module (ECM) monitors the power inputs. The ECM sets the OBDII code when the ECM remains powered up after the ignition switch has been turned OFF.

OBDII Code P0690 Mitsubishi - Electronic Control Module Power Relay Sense Circuit High - AutoCodes.com — P0690 Mitsubishi Code - Electronic Control Module Power Relay Sense Circuit High

What does this mean?

What are the Possible Causes of the DTC P0690 Mitsubishi?

Faulty Engine Control Module (ECM) relay
Faulty ECM
ECM harness is open or shorted
ECM circuit poor electrical connection

How to Fix the DTC P0690 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 does this mean?

Code Tech Notes

Check all the ECM fuses, if the fuses are OK try replacing the ASD relay.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0690 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 P0690 Mitsubishi code?

Need more information on how to fix the P0690 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0690 Mitsubishi code diagnosed by a professional: Find a repair shop in your area

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 P0690 Mitsubishi Code

1. What are the common symptoms of OBDII code P0690 in a Mitsubishi related to the Electronic Control Module Power Relay Sense Circuit High?

The common symptoms include engine stalling, difficulty starting the vehicle, and a check engine light illuminating on the dashboard.

2. What are the possible causes of the P0690 code in a Mitsubishi?

Possible causes of this code include a faulty electronic control module power relay, a short circuit in the power relay sense circuit, or a damaged wiring harness.

3. How can I diagnose the cause of the P0690 code in my Mitsubishi?

To diagnose the cause of the P0690 code, you can use a diagnostic scanner to retrieve the code and then inspect the electronic control module power relay, check for any wiring issues, and test the power relay sense circuit.

4. Can I continue driving my Mitsubishi with the P0690 code present?

It is not recommended to continue driving your Mitsubishi with the P0690 code present, as it can lead to more severe issues such as engine failure or further damage to the electronic control module.

5. What are some repair tips for fixing the P0690 code in a Mitsubishi?

Repair tips include checking and replacing the electronic control module power relay if necessary, repairing any damaged wiring, and clearing the code with a diagnostic scanner after the repairs are complete.

6. Is it possible to reset the P0690 code in a Mitsubishi without making any repairs?

While you can clear the code with a diagnostic scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair the P0690 code in a Mitsubishi?

The cost of repairing the P0690 code can vary depending on the exact cause of the issue, but it may range from around $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the P0690 code in a Mitsubishi at home?

If you have the necessary tools and experience working on automotive electrical systems, you may be able to fix the P0690 code at home. However, it is recommended to consult a professional if you are unsure.

9. Will the P0690 code cause any long-term damage to my Mitsubishi if left untreated?

Leaving the P0690 code untreated can potentially cause further damage to your Mitsubishi's electronic control module and other related components, leading to more expensive repairs down the line.

10. How long does it typically take to repair the P0690 code in a Mitsubishi?

The repair time for the P0690 code can vary depending on the exact cause of the issue and the availability of parts, but it may take anywhere from a few hours to a full day to complete the repairs.