AutoCodes – Ford – C1705 Ford

C1705 Ford Code - Parking Aid Left Rear Inner Sensor Circuit Short To Battery

Quick Answer

The parking aid system detects objects behind the vehicle when the vehicle is in REVERSE. Common causes include Faulty Parking Aid Left Rear Inner Sensor, Parking Aid Left Rear Inner Sensor harness is open or shorted, Parking Aid Left Rear Inner Sensor 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: C1705 Ford indicates Parking Aid Left Rear Inner Sensor Circuit Short To Battery.
Common causes: Common causes include Faulty Parking Aid Left Rear Inner Sensor, Parking Aid Left Rear Inner Sensor harness is open or shorted, Parking Aid Left Rear Inner Sensor 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.

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Code Popularity 788

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 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code C1705 Ford Description

The parking aid system detects objects behind the vehicle when the vehicle is in REVERSE. The parking aid module does this by calculating the distance to an object by the use of 4 ultrasonic sensors mounted in the rear bumper. The ultrasonic field is emitted in a semicircular area around the rear of the vehicle. The parking aid sensors can detect objects approximately 1.8 m (5.9 ft) to the rear of the vehicle, 46 cm (18 in) to the rear side of the vehicle, and 16 cm (6 in) above ground. A 750 Hz variable warning tone is generated from a parking aid speaker attached to the parking aid module. The parking aid speaker increases its warning tone rate as the vehicle gets closer to an obstacle. When an object is detected within 25 cm (10 in) of the sensors, the warning tone becomes continuous.
The parking aid system is enabled when the ignition switch is in the RUN position and REVERSE is selected. The system can be disabled through the message center RESET switch located in the instrument cluster. The parking aid menu is displayed until the transmission is taken out of REVERSE. While the menu is displayed, pressing the message center RESET switch changes the parking aid system status to OFF.
The parking aid system is disabled if a fault is detected in 1 of the 4 sensors, the parking aid speaker, or the parking aid module. This will be indicated by the parking aid disabled warning CHECK BACKUP AID displayed in the message center. The parking aid module is on the International Standards Organization (ISO) 9141 network and can be diagnosed with a diagnostic tool.

OBDII Code C1705 Ford - Parking Aid Left Rear Inner Sensor Circuit Short To Battery - AutoCodes.com — C1705 Ford Code - Parking Aid Left Rear Inner Sensor Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC C1705 Ford?

Faulty Parking Aid Left Rear Inner Sensor
Parking Aid Left Rear Inner Sensor harness is open or shorted
Parking Aid Left Rear Inner Sensor circuit poor electrical connection

How to Fix the DTC C1705 Ford?

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 C1705 Ford 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 C1705 Ford code?

Need more information on how to fix the C1705 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 C1705 Ford Code

What does the OBDII code C1705 indicate for a Ford vehicle?

C1705 indicates a fault in the parking aid system, specifically a short circuit in the left rear inner sensor circuit to the battery.

What symptoms might I experience if my vehicle has the C1705 code?

Common symptoms include a malfunctioning parking aid system, warning lights on the dashboard, or incorrect distance readings from the parking sensors.

What could cause the C1705 code to trigger?

The code can be triggered by a wiring issue, such as damaged or corroded wires, a faulty left rear inner sensor, or a problem with the parking aid module itself.

How can I diagnose the issue associated with code C1705?

Start by visually inspecting the wiring and connectors for damage, then test the left rear inner sensor for proper function. You may also need to check the parking aid module.

Is it safe to drive with the C1705 code?

While it may be safe to drive, the parking aid system will not function properly, which could make parking more difficult. It's advisable to address the issue as soon as possible.

What are some common repair solutions for the C1705 code?

Repairs may include replacing the faulty left rear inner sensor, repairing damaged wiring, or replacing the parking aid module if it's found to be defective.

Can I clear the C1705 code without fixing the issue?

Yes, you can clear the code using an OBDII scanner, but the issue will likely return if the underlying problem is not resolved.

How much might it cost to repair the problem associated with the C1705 code?

Repair costs can vary widely, but they typically range from $100 to $500, depending on whether you need to replace a sensor, repair wiring, or replace the module.

Are there any preventative measures to avoid the C1705 code?

Regularly inspect and maintain the parking aid system, including checking for corrosion on connectors and ensuring that the sensors are clean and free from debris.