C1709 Mercury 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 Mercury 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.
Code C1709 Mercury Description
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.
What are the Possible Causes of the DTC C1709 Mercury?
- 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 Mercury?
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 Mercury 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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Frequently Asked Questions about C1709 Mercury Code
1. What does the OBDII code C1709 mean on a Mercury vehicle?
C1709 indicates a Parking Aid Right Rear Inner Sensor Circuit Failure, meaning there is an issue with the wiring, sensor, or control module related to the inner right rear parking sensor.
2. What are the common symptoms of code C1709 on a Mercury?
Symptoms may include the parking aid system not functioning, warning chimes or messages on the dashboard, and the inability to detect objects near the right rear of the vehicle.
3. What causes the C1709 code to appear?
Common causes include a faulty right rear inner parking sensor, damaged or corroded wiring, poor electrical connections, or a malfunctioning parking aid control module.
4. How can I diagnose the C1709 code on my Mercury?
Start by visually inspecting the right rear inner parking sensor, its wiring, and connectors for damage or corrosion. Use an OBDII scanner to confirm the code and test the sensor and circuit for proper function.
5. Can a faulty parking sensor trigger the C1709 code?
Yes, a defective right rear inner parking sensor is one of the most common reasons for the C1709 code.
6. How do I fix the C1709 code on a Mercury?
Repairs may involve replacing a faulty right rear inner parking sensor, repairing damaged wiring, cleaning corroded connectors, or, in rare cases, replacing the parking aid control module.
7. Is it safe to drive with the C1709 code?
Yes, you can drive safely, but the parking aid system may not function correctly, increasing the risk of collisions while parking.
8. How much does it cost to fix the C1709 code on a Mercury?
The cost can range from $50 to $300, depending on whether the issue is a simple wiring repair or sensor replacement. Labor costs may vary by location.
9. Can I clear the C1709 code without repairs?
Clearing the code without addressing the underlying issue may temporarily turn off the warning, but it will likely return until the problem is resolved.
10. Does the C1709 code require professional repair?
While some issues, like cleaning connectors, can be done at home, diagnosing and replacing sensors or repairing wiring may require professional tools and expertise.
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