P1685 Jeep Code - Wrong or Invalid Key Message Received from SKIM
Quick Answer
The P1685 Jeep diagnostic trouble code (DTC) indicates that the Engine Control Module (ECM) has received a wrong or invalid key message from the Sentry Key Immobilizer Module (SKIM). Common causes include Faulty key or key fob, Malfunctioning SKIM module, Wiring issues between the 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
- P1685 Jeep indicates Wrong or Invalid Key Message Received from SKIM.
- Common causes
- Common causes include Faulty key or key fob, Malfunctioning SKIM module, Wiring issues between the 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 P1685 Jeep Description
The P1685 Jeep diagnostic trouble code (DTC) indicates that the Engine Control Module (ECM) has received a wrong or invalid key message from the Sentry Key Immobilizer Module (SKIM). The SKIM is a security feature installed in modern vehicles to prevent unauthorized starting of the engine. When the ECM receives an incorrect key message from the SKIM, it may prevent the vehicle from starting or cause it to stall while driving.
Common Causes of P1685 Jeep
- Faulty key or key fob
- Malfunctioning SKIM module
- Wiring issues between the SKIM and ECM
- ECM problems
- Aftermarket modifications affecting the SKIM system
Symptoms of P1685 Jeep
- Engine cranks but does not start
- Engine stalls while driving
- Security light on the dashboard illuminates
- Inability to start the vehicle with a known good key
How to Fix P1685 Jeep
- Inspect the key and key fob for damage or malfunctions
- Check the SKIM module for proper operation and potential faults
- Verify the wiring connections between the SKIM and ECM
- Perform a diagnostic scan to identify any ECM issues related to the key message
- Reset the SKIM system and reprogram any keys as needed
Cost to Fix P1685 Jeep
The typical repair costs for addressing the P1685 Jeep code can range from $100 to $500, depending on the specific cause of the issue and the required repairs. This estimate includes the cost of parts such as a new key or SKIM module, as well as labor charges for diagnosis and repair. It's important to note that actual repair costs may vary based on the location, vehicle make and model, and the extent of the repairs needed. Professional labor rates at auto repair shops typically range from $80 to $150 per hour, but rates may differ at dealerships or independent shops. It's recommended to obtain multiple quotes from reputable service providers to ensure a fair and accurate cost estimate for this repair.
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Frequently Asked Questions about P1685 Jeep Code
No Frequently Asked Questions about P1685 Jeep Code found.
Discuss the causes and fixes for P1685 Jeep OBDII Code
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What model and year is your Jeep? You may have a bad key. Try with another key or have your key reprogram by the dealer.
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