AutoCodes – Lincoln – C1705 Lincoln

C1705 Lincoln 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 Lincoln 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 492

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

What does this mean?

What are the Possible Causes of the DTC C1705 Lincoln?

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 Lincoln?

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 Lincoln 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 Lincoln code?

Need more information on how to fix the C1705 Lincoln 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 Lincoln Code

1. What does the OBDII code C1705 mean on a Lincoln?

The C1705 code indicates a Parking Aid Left Rear Inner Sensor Circuit Short to Battery, meaning the sensor or its wiring may have an electrical issue.

2. What are the common symptoms of code C1705 on a Lincoln?

Symptoms may include the parking aid system not working, warning lights or messages on the dashboard, and potentially beeping or no sound from the parking sensors.

3. What causes the C1705 code to appear on a Lincoln?

The code can be caused by damaged wiring, a short circuit, a faulty parking sensor, corrosion at the sensor connection, or an issue with the parking aid module.

4. How do I diagnose the C1705 code on a Lincoln?

Diagnosis typically involves inspecting the wiring and connectors for damage, testing the left rear inner sensor for proper operation, and checking for continuity or short circuits in the circuit.

5. Can I drive my Lincoln with a C1705 code?

Yes, you can drive with this code, but your parking aid system may not function properly, increasing the risk of accidents when parking.

6. How do I fix the C1705 code on a Lincoln?

Repairs may involve replacing the faulty sensor, repairing damaged or shorted wiring, cleaning corroded connectors, or in rare cases, replacing the parking aid module.

7. How much does it cost to fix the C1705 code on a Lincoln?

The repair cost can range from $50 to $300, depending on whether you need to replace the sensor, repair wiring, or address other related issues.

8. Can I reset the C1705 code without fixing the problem?

You can clear the code with an OBDII scanner, but if the issue is not resolved, the code will likely return.

9. How do I prevent the C1705 code from recurring on my Lincoln?

Regularly inspect the sensors and wiring for damage, avoid high-pressure washing near the sensors, and ensure connectors remain clean and dry.

10. Is the C1705 code specific to Lincoln vehicles?

While the C1705 code may appear on other makes, its definition and location of the affected sensor are specific to Lincoln's parking aid system. Always refer to your vehicle's manual.