P1686 Dodge Code - No SKIM BUS Messages Received
Quick Answer
The P1686 diagnostic trouble code for Dodge vehicles refers to "No SKIM BUS Messages Received." This code indicates that the vehicle's engine control module (ECM) is not receiving any messages from the Sentry Key Immobilizer Module (SKIM). Common causes include Faulty SKIM module, Issue with the transponder key, Wiring or connection issues between SKIM and ECM. 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 Dodge indicates No SKIM BUS Messages Received.
- Common causes
- Common causes include Faulty SKIM module, Issue with the transponder key, Wiring or connection issues between SKIM and ECM.
- 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 P1686 Dodge Description
The P1686 diagnostic trouble code for Dodge vehicles refers to "No SKIM BUS Messages Received." This code indicates that the vehicle's engine control module (ECM) is not receiving any messages from the Sentry Key Immobilizer Module (SKIM). The SKIM is a security feature that is designed to prevent unauthorized starting of the vehicle. When the ECM does not receive any messages from the SKIM, it can lead to the vehicle not starting or running poorly.
Common Causes of P1686 Dodge
- Faulty SKIM module
- Issue with the transponder key
- Wiring or connection issues between SKIM and ECM
- Faulty ECM
- Software issue with the ECM
Symptoms of P1686 Dodge
- Engine cranks but does not start
- Engine starts and then immediately stalls
- Security light flashing on the dashboard
- Vehicle goes into "limp mode," limiting performance
How to Fix P1686 Dodge
- Check the transponder key for any damage or malfunction. Replace the key if necessary.
- Inspect the wiring and connections between the SKIM and ECM for any damage or loose connections. Repair or replace as needed.
- If the SKIM module is faulty, it will need to be replaced. This may require reprogramming by a professional mechanic or dealership.
- If the ECM is determined to be the issue, it may need to be replaced or reprogrammed.
- Clear the diagnostic trouble codes and perform a test drive to ensure the issue has been resolved.
Cost to Fix P1686 Dodge
The cost of repairing a P1686 code can vary depending on the specific cause of the issue. Replacement of a transponder key can range from $50 to $200, while a new SKIM module can cost between $200 and $500. If the ECM needs to be replaced, this can be a more costly repair, ranging from $500 to $1500. Labor costs can add to the total repair bill, with rates typically ranging from $80 to $150 per hour. It is advisable to get a detailed quote from a professional mechanic or dealership to get an accurate estimate for the repair.
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