AutoCodes – Generic – C1704

C1704 Code - Low Front Left Tire Pressure

Quick Answer

During driving, the TPMS (Tire Pressure Monitoring System) receives the signal transmitted from the transmitter installed in each wheel, when the tire pressure becomes low. Common causes include Low Tire Pressure, Faulty Front Left Transmitter sensor, Front Left Transmitter sensor has not been programmed. 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: C1704 indicates Low Front Left Tire Pressure.
Common causes: Common causes include Low Tire Pressure, Faulty Front Left Transmitter sensor, Front Left Transmitter sensor has not been programmed.
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 Popularity 28,002

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 17, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1704 Description

During driving, the TPMS (Tire Pressure Monitoring System) receives the signal transmitted from the transmitter installed in each wheel, when the tire pressure becomes low. The BCM (Body Control Module) of this system has pressure judgment and trouble diagnosis functions. When the tire pressure monitoring system detects low inflation pressure or another unusual symptom, the low tire pressure warning lamps in the combination meter comes on.

OBDII Code C1704 - Low Front Left Tire Pressure - AutoCodes.com — C1704 Code - Low Front Left Tire Pressure

What does this mean?

What are the Possible Causes of the DTC C1704?

Low Tire Pressure
Faulty Front Left Transmitter sensor
Front Left Transmitter sensor has not been programmed
Faulty Tire Pressure Receiver
Faulty Body Control Module (BCM)

How to Fix the DTC C1704?

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 does this mean?

Code Tech Notes

Start by setting the tire pressure between 28 psi and 36 psi. Clear the code and road test vehicle for about 10 minutes.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1704 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 C1704 code?

Need more information on how to fix the C1704 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1704 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1704 Ford — Parking Aid Right Rear Outer Sensor Fault
C1704 Infiniti — Low Front Left Tire Pressure
C1704 Lincoln — Parking Aid Right Rear Outer Sensor Fault
C1704 Mercury — Parking Aid Right Rear Outer Sensor Fault
C1704 Nissan — Low Front Left Tire Pressure

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1704 Code

1. What are common symptoms of OBDII code C1704 (Low Front Left Tire Pressure)?

- The most common symptoms include a dashboard warning light indicating low tire pressure, uneven tire wear on the front left tire, and decreased handling and stability.

2. What are the possible causes of OBDII code C1704?

- The code can be triggered by a leak in the front left tire, faulty tire pressure sensor, damaged sensor wiring, or incorrect tire pressure readings.

3. How can I verify if my front left tire is indeed low on pressure?

- Use a tire pressure gauge to measure the pressure in the front left tire and compare it to the manufacturer's recommended pressure for your vehicle.

4. Can I drive my vehicle with OBDII code C1704 without immediate repair?

- It is not recommended to drive with low tire pressure as it can lead to decreased fuel efficiency, tire damage, and compromised safety on the road.

5. What should I do if I suspect a leak in my front left tire causing OBDII code C1704?

- Inspect the tire for any visible punctures or damage, and consider inflating the tire to the correct pressure to see if the warning light goes off. If it persists, have the tire professionally inspected.

6. How can I reset the OBDII code C1704 after resolving the low front left tire pressure issue?

- After addressing the tire pressure problem, use an OBDII scanner to clear the code and reset the vehicle's computer system.

7. Are there any DIY repair tips for fixing OBDII code C1704?

- DIY repair options include checking and adjusting tire pressure, inspecting the tire for damage, and ensuring the tire pressure sensor is functioning correctly.

8. Can extreme temperatures affect tire pressure and trigger OBDII code C1704?

- Yes, temperature fluctuations can cause tire pressure to decrease, leading to the activation of the low front left tire pressure warning.

9. Is it necessary to replace the tire pressure sensor if it is malfunctioning and causing code C1704?

- If the tire pressure sensor is determined to be faulty, it is advisable to replace it to ensure accurate tire pressure monitoring and prevent the code from reoccurring.

10. How often should I check my tire pressure to prevent OBDII code C1704 from appearing?

- It is recommended to check your tire pressure at least once a month and before long trips to maintain proper tire inflation and avoid triggering the code.