AutoCodes – Jeep – P0689 Jeep

P0689 Jeep Code - Auto Shutdown Relay Control Circuit Low

Quick Answer

The Engine Control Module (ECM) monitors the power inputs. Common causes include Weak battery, Low voltage while cranking, Faulty Engine Control Module (ECM) 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 Jeep indicates Auto Shutdown Relay Control Circuit Low.
Common causes: Common causes include Weak battery, Low voltage while cranking, Faulty Engine Control Module (ECM) 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 3,267

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
Comments
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Code P0689 Jeep Description

The Engine Control Module (ECM) monitors the power inputs. The ECM sets the OBDII code when there is a short or open in Auto Shutdown (ASD) relay circuit

OBDII Code P0689 Jeep - Auto Shutdown Relay Control Circuit Low - AutoCodes.com — P0689 Jeep Code - Auto Shutdown Relay Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0689 Jeep?

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

How to Fix the DTC P0689 Jeep?

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 P0689 Jeep 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 Jeep 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.