AutoCodes – Ford – P0689 2009 Ford Fusion

P0689 2009 Ford Fusion Code - Electronic Control Module Power Relay Sense Circuit Low

Quick Answer

The Powertrain Control Module (PCM) monitors the voltage on the Ignition Switch Position Run (ISP-R) and the Fuel Injector Power Monitor (INJPWRM) circuits. Common causes include Weak battery, Low voltage while cranking, Faulty Powertrain Control Module (PCM) relay. 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: P0689 2009 Ford Fusion indicates Electronic Control Module Power Relay Sense Circuit Low.
Common causes: Common causes include Weak battery, Low voltage while cranking, Faulty Powertrain Control Module (PCM) relay.
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 1,828

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
Cost to Diagnose
FAQs
Comments
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Code P0689 2009 Ford Fusion Description

The Powertrain Control Module (PCM) monitors the voltage on the Ignition Switch Position Run (ISP-R) and the Fuel Injector Power Monitor (INJPWRM) circuits. This DTC sets when the voltage on the ISP-R and the INJPWRM circuit voltages do not correspond for a calibrated period of time.

OBDII Code P0689 2009 Ford Fusion - Electronic Control Module Power Relay Sense Circuit Low - AutoCodes.com — P0689 2009 Ford Fusion Code - Electronic Control Module Power Relay Sense Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0689 2009 Ford Fusion?

Weak battery
Low voltage while cranking
Faulty Powertrain Control Module (PCM) relay
Blown PCM fuse
Faulty PCM
PCM harness is open or shorted
PCM circuit poor electrical connection

How to Fix the DTC P0689 2009 Ford Fusion?

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 P0689 2009 Ford Fusion 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 P0689 2009 Ford Fusion 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 P0689 2009 Ford Fusion Code

1. What are the common symptoms of OBDII code P0689 in a 2009 Ford Fusion?

The common symptoms of code P0689 in a 2009 Ford Fusion include difficulty starting the vehicle, rough idle, and stalling.

2. What does the OBDII code P0689 in a 2009 Ford Fusion mean?

Code P0689 indicates a problem with the Electronic Control Module Power Relay Sense Circuit being too low.

3. What are the possible causes of OBDII code P0689 in a 2009 Ford Fusion?

Possible causes of code P0689 in a 2009 Ford Fusion include a faulty power relay, a damaged wiring harness, or a defective Electronic Control Module.

4. How can I diagnose OBDII code P0689 in a 2009 Ford Fusion?

Diagnosing code P0689 involves checking the power relay, inspecting the wiring for damage, and testing the Electronic Control Module to identify the root cause of the issue.

5. Can I still drive my 2009 Ford Fusion with OBDII code P0689?

It is not recommended to drive your 2009 Ford Fusion with code P0689, as it can lead to potential issues like stalling or complete engine failure.

6. How can I repair OBDII code P0689 in a 2009 Ford Fusion?

To repair code P0689, you may need to replace the power relay, repair any damaged wiring, or replace the Electronic Control Module if necessary.

7. Is it safe to reset the OBDII code P0689 in a 2009 Ford Fusion using a scanner?

While resetting the code may temporarily turn off the Check Engine Light, it is crucial to diagnose and repair the underlying issue causing code P0689 to prevent further damage.

8. Are there any DIY tips for fixing OBDII code P0689 in a 2009 Ford Fusion?

DIY tips for fixing code P0689 include checking and cleaning the power relay connections, inspecting the wiring for any visible damage, and ensuring all connections are secure.

9. How much does it cost to repair OBDII code P0689 in a 2009 Ford Fusion?

The cost of repairing code P0689 can vary depending on the specific cause of the issue, but it may range from $100 to $500 for parts and labor.

10. Can a mechanic help me fix OBDII code P0689 in my 2009 Ford Fusion?

Yes, a qualified mechanic can help diagnose and repair code P0689 in your 2009 Ford Fusion using professional tools and expertise to ensure the problem is resolved correctly.