AutoCodes – Lincoln – C1709 Lincoln

C1709 Lincoln Code - Parking Aid Right Rear Inner Sensor Circuit Failure

Quick Answer

The parking aid system detects objects behind the vehicle when the vehicle is in REVERSE. Common causes include Faulty Parking Aid Right Rear Inner Sensor, Parking Aid Right Rear Inner Sensor harness is open or shorted, Parking Aid Right 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: C1709 Lincoln indicates Parking Aid Right Rear Inner Sensor Circuit Failure.
Common causes: Common causes include Faulty Parking Aid Right Rear Inner Sensor, Parking Aid Right Rear Inner Sensor harness is open or shorted, Parking Aid Right 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 760

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 C1709 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 C1709 Lincoln - Parking Aid Right Rear Inner Sensor Circuit Failure - AutoCodes.com — C1709 Lincoln Code - Parking Aid Right Rear Inner Sensor Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1709 Lincoln?

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

How to Fix the DTC C1709 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 C1709 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.

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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 C1709 Lincoln Code

1. What are the common symptoms of OBDII code C1709 Lincoln (Parking Aid Right Rear Inner Sensor Circuit Failure)?

- The common symptoms include malfunctioning or disabled parking aid system, warning lights on the dashboard, and audible alerts not functioning properly.

2. What are the possible causes of OBDII code C1709 Lincoln?

- The code C1709 usually indicates a failure in the right rear inner sensor circuit of the parking aid system. Possible causes include sensor wiring issues, sensor damage, or a faulty sensor.

3. How can I diagnose the Parking Aid Right Rear Inner Sensor Circuit Failure issue?

- Diagnosis involves checking the wiring and connections of the right rear inner sensor, testing the sensor itself for proper functionality, and scanning the system with an OBDII scanner to retrieve the specific fault code.

4. Is it safe to drive with OBDII code C1709 active?

- It is generally safe to drive with this code, but you may experience reduced parking assistance capabilities. It's still recommended to address the issue promptly to ensure the proper functioning of the parking aid system.

5. Can I repair OBDII code C1709 Lincoln issue myself?

- If you have experience with automotive electrical systems and diagnostics, you may attempt to repair this issue yourself by inspecting the sensor and wiring. However, for complex or hard-to-reach components, it's advisable to seek professional help.

6. How much does it cost to repair OBDII code C1709 Lincoln?

- The cost of repairing this issue can vary depending on the exact cause of the problem, labor rates in your area, and whether you choose to replace the sensor yourself or have a mechanic do the work. It's best to obtain quotes from local repair shops.

7. Can a faulty sensor cause other issues besides the parking aid system malfunction?

- A faulty sensor may not directly cause other issues, but it can affect the overall functionality and safety of the parking aid system. Promptly addressing the sensor failure is essential to avoid potential accidents while parking.

8. Are there any preventive maintenance tips to avoid OBDII code C1709 Lincoln?

- To prevent issues with the parking aid system, regularly inspect the sensors for damage or corrosion, ensure proper wiring connections, and address any warning lights or abnormal system behavior promptly.

9. Will resetting the OBDII system clear the C1709 code?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the Parking Aid Right Rear Inner Sensor Circuit Failure is not addressed, the code is likely to reappear after driving cycles.

10. How long does it take to repair the Parking Aid Right Rear Inner Sensor Circuit Failure issue?

- The repair time can vary depending on the exact cause of the problem, accessibility of the sensor, and the expertise of the technician. In general, this repair can take anywhere from 1 to 3 hours at a repair shop.