AutoCodes – Jeep – P1686 Jeep

P1686 Jeep Code - No SKIM BUS Messages Received

Quick Answer

The Powertrain Control Module (PCM) monitors the Smart Key Immobilizer Module (SKIM) for messages. Common causes include Reprogram Smart Key Immobilizer Module (SKIM) key, Faulty Immobilizer Key, Faulty Immobilizer Module. 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: P1686 Jeep indicates No SKIM BUS Messages Received.
Common causes: Common causes include Reprogram Smart Key Immobilizer Module (SKIM) key, Faulty Immobilizer Key, Faulty Immobilizer Module.
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 20,882

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 20, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P1686 Jeep Description

The Powertrain Control Module (PCM) monitors the Smart Key Immobilizer Module (SKIM) for messages. The PCM will set the Diagnostic Trouble Code (DTC) when no messages received from the Smart Key Immobilizer Module.

OBDII Code P1686 Jeep - No SKIM BUS Messages Received - AutoCodes.com — P1686 Jeep Code - No SKIM BUS Messages Received

What does this mean?

What are the Possible Causes of the DTC P1686 Jeep?

Reprogram Smart Key Immobilizer Module (SKIM) key
Faulty Immobilizer Key
Faulty Immobilizer Module

How to Fix the DTC P1686 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1686 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.

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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.