AutoCodes – Lincoln – P0689 Lincoln

P0689 Lincoln 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 Lincoln 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 1,443

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 Lincoln 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 Lincoln - Electronic Control Module Power Relay Sense Circuit Low - AutoCodes.com — P0689 Lincoln Code - Electronic Control Module Power Relay Sense Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0689 Lincoln?

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 Lincoln?

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 Lincoln 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 Lincoln code?

Need more information on how to fix the P0689 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0689 Lincoln 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 P0689 Lincoln Code

1. What are the common symptoms of OBDII code P0689 in a Lincoln vehicle?

- Common symptoms include difficulty starting the engine, rough idling, stalling, and potential issues with the vehicle's electrical components.

2. What are the possible causes of the Electronic Control Module Power Relay Sense Circuit Low error code in a Lincoln?

- The error code P0689 in a Lincoln may be caused by a faulty power relay, damaged wiring or connectors, a defective electronic control module (ECM), or a weak battery.

3. How can I diagnose the cause of the P0689 code in my Lincoln?

- To diagnose the issue, you can perform a visual inspection of the wiring and connectors, test the power relay, check the battery voltage, and use a diagnostic scanner to read the fault codes stored in the ECM.

4. Can I drive my Lincoln with the P0689 error code present?

- It is not recommended to drive your Lincoln with the P0689 code present, as it can lead to potential issues with starting the engine and affect the overall performance of the vehicle.

5. How can I repair the Electronic Control Module Power Relay Sense Circuit Low issue in my Lincoln?

- Repairing the P0689 code may involve replacing the faulty power relay, repairing or replacing damaged wiring or connectors, or replacing the electronic control module if necessary.

6. Will resetting the error code make it go away permanently?

- Resetting the error code may temporarily clear the warning light, but if the underlying issue causing the P0689 code is not addressed, the code is likely to reappear.

7. Can a DIY enthusiast fix the P0689 code in a Lincoln?

- Depending on the cause of the code, some DIY enthusiasts may be able to diagnose and repair the issue themselves, such as checking and replacing fuses, relays, and connectors. However, more complex repairs may require professional assistance.

8. How much does it typically cost to repair the P0689 code in a Lincoln?

- The cost of repairing the P0689 code in a Lincoln can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It is advisable to get a diagnostic and repair estimate from a qualified mechanic.

9. Are there any preventive measures to avoid the P0689 error code in a Lincoln?

- Regular maintenance of the vehicle's electrical system, checking the battery health, and addressing any warning signs promptly can help prevent issues like the P0689 code from occurring in a Lincoln.

10. Is the P0689 code specific to Lincoln vehicles only?

- While the OBDII code P0689 is associated with the Electronic Control Module Power Relay Sense Circuit Low error, it can potentially occur in other vehicle makes and models as well, not just limited to Lincolns.