P1673 Code - Cooling Fan Relay Circuit Malfunction
Quick Answer
P1673 indicates Cooling Fan Relay Circuit Malfunction. Common causes include Faulty cooling fan relay, Cooling fan relay harness is open or shorted, Cooling fan 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
- P1673 indicates Cooling Fan Relay Circuit Malfunction.
- Common causes
- Common causes include Faulty cooling fan relay, Cooling fan relay harness is open or shorted, Cooling fan 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 P1673 Description
What are the Possible Causes of the DTC P1673?
- Faulty cooling fan relay
- Cooling fan relay harness is open or shorted
- Cooling fan relay circuit poor electrical connection
How to Fix the DTC P1673?
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 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.
Need more information about the P1673 code?
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Get the P1673 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1673 Buick — EVAP Vent Solenoid Control Circuit Conditions
- P1673 Cadillac — EVAP Vent Solenoid Control Circuit Conditions
- P1673 Chevrolet — EVAP Vent Solenoid Control Circuit Conditions
- P1673 GMC — EVAP Vent Solenoid Control Circuit Conditions
- P1673 Hyundai — Fan Relay Malfunction High Speed
- P1673 KIA — Cooling Fan Relay Circuit Malfunction
- P1673 Land Rover — Engine Anti-Theft Signal New ECM Not Configured
Frequently Asked Questions about P1673 Code
What does the OBDII code P1673 mean?
1. P1673 indicates a Cooling Fan Relay Circuit Malfunction, meaning the engine control module (ECM) has detected an issue in the circuit controlling the cooling fan relay. 2.
What are the common symptoms of the P1673 code?
Common symptoms include engine overheating, the cooling fan not turning on, increased engine temperature readings, and possible activation of the check engine light. 3.
What causes the P1673 code to appear?
The code can be caused by a faulty cooling fan relay, damaged wiring or connectors in the relay circuit, a blown fuse, or a malfunctioning engine control module (ECM). 4.
Can I drive my car with the P1673 code active?
Driving with the P1673 code is not recommended, as it may lead to engine overheating and potential damage if the cooling fan isn't functioning properly. 5.
How do I diagnose the P1673 code?
Diagnosis involves checking the cooling fan relay, inspecting the wiring and connectors for damage or corrosion, testing the relay for proper operation, and verifying ECM inputs and outputs. 6.
How can I fix the P1673 code?
Repairs may include replacing a faulty cooling fan relay, repairing damaged wiring or connectors, replacing blown fuses, or, in rare cases, reprogramming or replacing the ECM. 7.
How much does it cost to fix the P1673 code?
The repair cost varies but typically ranges from $50 to $150 for a relay replacement. More extensive wiring or ECM repairs can cost significantly more, depending on the complexity. 8.
Can a blown fuse cause the P1673 code?
Yes, a blown fuse in the cooling fan circuit can interrupt power to the relay, triggering the P1673 code. 9.
How do I prevent the P1673 code from recurring?
Regularly inspect the cooling fan system, including the relay, wiring, and fuses, for signs of wear, corrosion, or damage, and address issues promptly. 10.
Will the check engine light turn off automatically after fixing the P1673 code?
The check engine light may turn off after repairs if the issue is resolved. If it doesn’t, you may need to clear the code using an OBDII scanner.
Discuss the causes and fixes for P1673 OBDII Code
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