P0688 Jeep Code - Auto Shutdown Relay Control Circuit Open
Quick Answer
The P0688 code in a Jeep indicates a problem with the Auto Shutdown (ASD) relay control circuit being open. Common causes include Damaged wiring or connectors in the ASD relay control circuit, Faulty ASD relay, Blown fuse related to the ASD 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
- P0688 Jeep indicates Auto Shutdown Relay Control Circuit Open.
- Common causes
- Common causes include Damaged wiring or connectors in the ASD relay control circuit, Faulty ASD relay, Blown fuse related to the ASD 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 P0688 Jeep Description
The P0688 code in a Jeep indicates a problem with the Auto Shutdown (ASD) relay control circuit being open. The ASD relay is responsible for providing power to various components, including the fuel pump, ignition system, and injectors. When the circuit is open, it means that there is a break or disconnect in the wiring that controls the relay, preventing it from functioning properly. This can lead to a variety of issues with the vehicle's performance, as essential systems may not receive power when needed.
Common Causes of P0688 Jeep
- Damaged wiring or connectors in the ASD relay control circuit.
- Faulty ASD relay.
- Blown fuse related to the ASD relay.
- Malfunctioning Engine Control Module (ECM).
- Corrosion or poor connections in the relay circuit.
Symptoms of P0688 Jeep
- Engine cranks but does not start.
- Engine stalls or cuts out while driving.
- Check Engine Light is illuminated.
- Fuel pump does not prime when turning the key to the ON position.
- Loss of power or rough idle.
How to Fix P0688 Jeep
- Perform a visual inspection of the wiring and connectors in the ASD relay control circuit to check for any damage or corrosion.
- Test the ASD relay for proper functioning and replace if necessary.
- Check and replace any blown fuses related to the ASD relay.
- Test the Engine Control Module (ECM) to ensure it is functioning correctly and replace if needed.
- Clear the diagnostic trouble codes and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P0688 Jeep
The typical repair costs for addressing the P0688 code in a Jeep can range from $100 to $500, depending on the specific cause of the issue and the cost of parts and labor. Keep in mind that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Additionally, factors such as the vehicle's make and model, as well as the engine type, can also affect the overall cost of the repair.
Tech Notes for P0688 Jeep
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Frequently Asked Questions about P0688 Jeep Code
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