P1673 GMC Code - EVAP Vent Solenoid Control Circuit Conditions
Quick Answer
With the key on or engine running, the Powertrain Control Module (PCM) detects an improper voltage level on the Vent Solenoid control circuit for 30 seconds. 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
- P1673 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 P1673 GMC Description
What are the Possible Causes of the DTC P1673 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 P1673 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 P1673 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 P1673 GMC Code
What does the OBDII code P1673 mean on a GMC vehicle?
The P1673 code indicates an issue with the EVAP vent solenoid control circuit, which is part of the evaporative emissions system designed to prevent fuel vapors from escaping into the atmosphere.
What are the common symptoms of a P1673 code?
Common symptoms include the check engine light turning on, possible fuel odor near the vehicle, and in some cases, difficulty refueling or decreased fuel efficiency.
What causes the P1673 code to appear?
Typical causes include a faulty EVAP vent solenoid, damaged wiring or connectors in the control circuit, or a malfunction in the engine control module (ECM).
Can a loose gas cap trigger the P1673 code?
While a loose or damaged gas cap can cause EVAP system-related codes, the P1673 code specifically points to issues with the vent solenoid control circuit, not the gas cap.
How do you diagnose the P1673 code?
Diagnosis involves checking the EVAP vent solenoid, inspecting the wiring and connectors for damage, and using a scan tool to test the circuit's functionality.
Is it safe to drive with a P1673 code?
While the vehicle may remain drivable, ignoring the code could lead to increased emissions and potential long-term damage to the EVAP system. It’s best to address the issue promptly.
How is the P1673 code typically fixed?
Repairs may involve replacing the EVAP vent solenoid, repairing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.
What tools are needed to fix the P1673 code?
A diagnostic scan tool, a multimeter for testing circuits, and basic hand tools for replacing components are commonly used to address this issue.
Can extreme weather cause the P1673 code?
Extreme weather, especially heavy rain or snow, can sometimes cause water intrusion or corrosion in the EVAP vent solenoid or its wiring, potentially triggering this code.
How much does it cost to repair a P1673 code on a GMC?
Repair costs can vary but typically range from $100 to $300, depending on whether the vent solenoid, wiring, or ECM requires replacement or repair.
Discuss the causes and fixes for P1673 GMC OBDII Code
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