P2687 GMC Code - Fuel Heater Relay Control Circuit
Quick Answer
Ignition voltage is supplied to the coil side of the fuel heater relay whenever the ignition is On. Common causes include Faulty Fuel Heater Relay, Fuel Heater Relay harness is open or shorted, Fuel Heater Relay circuit poor electrical connection. 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
- P2687 GMC indicates Fuel Heater Relay Control Circuit.
- Common causes
- Common causes include Faulty Fuel Heater Relay, Fuel Heater Relay harness is open or shorted, Fuel Heater Relay circuit poor electrical connection.
- 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.
Code P2687 GMC Description
What are the Possible Causes of the DTC P2687 GMC?
- Faulty Fuel Heater Relay
- Fuel Heater Relay harness is open or shorted
- Fuel Heater Relay circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2687 GMC?
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 P2687 GMC 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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Frequently Asked Questions about P2687 GMC Code
1. What are the common symptoms of OBDII code P2687 GMC (Fuel Heater Relay Control Circuit)?
- Common symptoms include rough idling, poor fuel efficiency, stalling, and illuminated check engine light.
2. What can cause OBDII code P2687 GMC to trigger?
- The code can be triggered by a faulty fuel heater relay, damaged wiring in the relay control circuit, or a malfunctioning PCM.
3. How serious is OBDII code P2687 GMC (Fuel Heater Relay Control Circuit)?
- While the code itself may not cause immediate harm to the vehicle, ignoring it can lead to poor engine performance and potentially damage other components over time.
4. What are some diagnostic steps to troubleshoot OBDII code P2687 GMC?
- Diagnostic steps include checking the fuel heater relay, inspecting the wiring for damage, testing the relay control circuit, and verifying the PCM functionality.
5. Can I drive my vehicle with OBDII code P2687 GMC present?
- It is not recommended to drive the vehicle with this code present, as it can lead to reduced fuel efficiency and potential engine issues.
6. How can I repair OBDII code P2687 GMC (Fuel Heater Relay Control Circuit) myself?
- DIY repairs may involve replacing the fuel heater relay, repairing damaged wiring, or resetting the PCM after fixing the underlying issue.
7. Is it necessary to visit a mechanic for OBDII code P2687 GMC diagnosis and repair?
- While DIY troubleshooting is possible, seeking professional help from a mechanic with diagnostic tools and expertise is recommended for accurate diagnosis and repair.
8. How much does it typically cost to fix OBDII code P2687 GMC?
- The cost of repairing this code can vary depending on the underlying issue, but it may range from $100 to $300 for parts and labor.
9. Can OBDII code P2687 GMC be intermittent?
- Yes, this code can sometimes be intermittent, which may indicate loose connections or sporadic issues with the fuel heater relay circuit.
10. Will resetting the check engine light resolve OBDII code P2687 GMC?
- Resetting the check engine light may temporarily clear the code, but it will reappear if the underlying issue causing P2687 is not addressed.
Discuss the causes and fixes for P2687 GMC OBDII Code
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