P1665 GMC Code - EVAP Vent Solenoid Control Circuit Conditions
Quick Answer
The Output Driver Module (ODM) is used by the Powertrain Control Module (PCM) to turn on many of the current-driven devices that are needed to control various engine and transaxle functions. Common causes include Faulty EVAP Vent Solenoid, EVAP Vent Solenoid harness is open or shorted, EVAP Vent Solenoid 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
- P1665 GMC indicates EVAP Vent Solenoid Control Circuit Conditions.
- Common causes
- Common causes include Faulty EVAP Vent Solenoid, EVAP Vent Solenoid harness is open or shorted, EVAP Vent Solenoid 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 P1665 GMC Description
What are the Possible Causes of the DTC P1665 GMC?
- Faulty EVAP Vent Solenoid
- EVAP Vent Solenoid harness is open or shorted
- EVAP Vent Solenoid circuit poor electrical connection
How to Fix the DTC P1665 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 P1665 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 P1665 GMC Code
1. What does the OBDII code P1665 mean on a GMC vehicle?
P1665 indicates an issue with the EVAP Vent Solenoid Control Circuit, which is part of the vehicle's evaporative emissions control system.
2. What are the common symptoms of the P1665 code?
Symptoms may include an illuminated check engine light, reduced fuel efficiency, difficulty refueling, or a faint fuel odor near the vehicle.
3. What causes the P1665 code to appear?
Common causes include a faulty EVAP vent solenoid, damaged wiring or connectors in the circuit, or a malfunctioning powertrain control module (PCM).
4. Can a loose gas cap trigger the P1665 code on a GMC?
No, a loose gas cap typically triggers different codes related to the EVAP system, but not P1665, which specifically pertains to the vent solenoid circuit.
5. How do I diagnose the P1665 code?
Start by inspecting the EVAP vent solenoid wiring and connectors for damage or corrosion, then test the solenoid itself for proper operation using a multimeter or scanner.
6. Is it safe to drive with the P1665 code active?
While it may not cause immediate damage, driving with this code can lead to increased emissions and potential long-term issues with the EVAP system.
7. How do I fix the P1665 code on my GMC?
Repairs may involve replacing the EVAP vent solenoid, repairing damaged wiring, or addressing PCM-related issues if the circuit is functioning properly.
8. How much does it cost to repair a P1665 code?
The cost varies, but replacing the EVAP vent solenoid typically ranges from $100 to $300, including parts and labor.
9. Can the P1665 code clear itself after repairs?
The code might clear after resolving the issue, but you may need to manually reset it using an OBDII scanner or by completing a drive cycle.
10. What tools are needed to diagnose and fix the P1665 code?
You'll need an OBDII scanner, a multimeter to test the circuit, and basic hand tools to inspect or replace components.
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