P0690 2016 GMC Sierra Code - Electronic Control Module Power Relay Sense Circuit High
Quick Answer
The P0690 code in a 2016 GMC Sierra indicates a problem with the Electronic Control Module (ECM) power relay sense circuit being too high. Common causes include Faulty ECM power relay, Short circuit in the sense circuit wiring, Malfunctioning 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
- P0690 2016 GMC Sierra indicates Electronic Control Module Power Relay Sense Circuit High.
- Common causes
- Common causes include Faulty ECM power relay, Short circuit in the sense circuit wiring, Malfunctioning 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 P0690 2016 GMC Sierra Description
The P0690 code in a 2016 GMC Sierra indicates a problem with the Electronic Control Module (ECM) power relay sense circuit being too high. The ECM power relay is responsible for supplying power to the ECM, which controls various functions in the vehicle such as engine management, transmission shifting, and emissions control. The sense circuit is a feedback loop that monitors the voltage supplied to the ECM.
Common Causes of P0690 2016 GMC Sierra
- Faulty ECM power relay
- Short circuit in the sense circuit wiring
- Malfunctioning ECM
- Issues with the vehicle's battery or charging system
- Corrosion or damage to electrical connections
Symptoms of P0690 2016 GMC Sierra
- Check engine light illuminated
- Engine running rough or misfiring
- Reduced fuel efficiency
- Vehicle stalling or difficulty starting
- Loss of power or acceleration
How to Fix P0690 2016 GMC Sierra
- Use a diagnostic scanner to retrieve the trouble code and verify the issue.
- Inspect the ECM power relay and sense circuit wiring for any signs of damage or corrosion.
- Test the ECM power relay and replace if faulty.
- Check the ECM for proper operation and replace if necessary.
- Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0690 2016 GMC Sierra
The cost of repairing a P0690 code in a 2016 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of parts for replacing an ECM power relay or ECM can range from $100 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour. Therefore, the total repair cost could be anywhere from $200 to $800 or more, depending on the extent of the repairs needed. It's recommended to consult with a professional mechanic to get an accurate estimate based on your specific situation.
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Frequently Asked Questions about P0690 2016 GMC Sierra Code
1. What does the OBDII code P0690 for a 2016 GMC Sierra mean?
- The code P0690 indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit being too high.
2. What are the common symptoms of OBDII code P0690 in a 2016 GMC Sierra?
- Common symptoms include difficulty starting the vehicle, engine stalling, and potential loss of power while driving.
3. What are possible causes of the ECM Power Relay Sense Circuit high in a 2016 GMC Sierra?
- Causes can include a faulty ECM power relay, damaged wiring or connectors in the power relay circuit, or issues with the ECM itself.
4. How can I diagnose the ECM Power Relay Sense Circuit high issue in my 2016 GMC Sierra?
- Diagnosing this issue typically involves checking the power relay and related wiring for any signs of damage or corrosion, as well as testing the ECM for proper functionality.
5. Can driving with the P0690 code in a 2016 GMC Sierra cause further damage?
- Continuing to drive with this code may lead to further electrical system issues or potential damage to the ECM, so it is best to address the problem promptly.
6. How can I repair the ECM Power Relay Sense Circuit high problem in my 2016 GMC Sierra?
- Repair may involve replacing the ECM power relay, repairing damaged wiring or connectors, or even replacing the ECM if necessary.
7. Is it safe to continue driving my 2016 GMC Sierra with the P0690 code?
- It is not recommended to drive the vehicle with this code present, as it can lead to unreliable performance and potential safety hazards.
8. Can I reset the OBDII code P0690 in my 2016 GMC Sierra using a diagnostic scanner?
- Yes, a diagnostic scanner can be used to clear the code after the underlying issue has been addressed and resolved.
9. How much does it cost to repair the ECM Power Relay Sense Circuit high issue in a 2016 GMC Sierra?
- The cost of repair can vary depending on the exact cause of the problem, but it may involve parts and labor costs ranging from $100 to $500 or more.
10. Are there any preventive measures to avoid the ECM Power Relay Sense Circuit high problem in a 2016 GMC Sierra?
- Regular vehicle maintenance, including checking the electrical system components, can help prevent issues like the ECM Power Relay Sense Circuit high from occurring.
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