AutoCodes – Mercury – C1701 Mercury

C1701 Mercury Code - Parking Aid Left Rear Outer Sensor Fault

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 Outer Sensor, Parking Aid Left Rear Outer Sensor harness is open or shorted, Parking Aid Left Rear Outer 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: C1701 Mercury indicates Parking Aid Left Rear Outer Sensor Fault.
Common causes: Common causes include Faulty Parking Aid Left Rear Outer Sensor, Parking Aid Left Rear Outer Sensor harness is open or shorted, Parking Aid Left Rear Outer 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 534

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 C1701 Mercury 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 C1701 Mercury - Parking Aid Left Rear Outer Sensor Fault - AutoCodes.com — C1701 Mercury Code - Parking Aid Left Rear Outer Sensor Fault

What does this mean?

What are the Possible Causes of the DTC C1701 Mercury?

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

How to Fix the DTC C1701 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 C1701 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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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 C1701 Mercury Code

1. What are the common symptoms of OBDII code C1701 for a Mercury parking aid left rear outer sensor fault?

The common symptoms include an inoperative parking aid system on the left rear side of the vehicle and potential error messages or warnings on the dashboard.

2. What are the possible causes of OBDII code C1701 for a Mercury parking aid left rear outer sensor fault?

The code C1701 can be triggered by a faulty left rear outer sensor, damaged wiring or connectors, or issues with the parking aid control module.

3. How can I diagnose the OBDII code C1701 for a Mercury parking aid left rear outer sensor fault?

Diagnosing this code involves using a diagnostic scanner to retrieve the specific fault code, testing the left rear outer sensor for proper function, and inspecting the wiring and connectors for any damage or corrosion.

4. Can I repair the OBDII code C1701 for a Mercury parking aid left rear outer sensor fault myself?

Depending on your skill level and access to tools, you may be able to repair this issue yourself by replacing the faulty left rear outer sensor, repairing damaged wiring or connectors, or resetting the parking aid system.

5. Is it safe to drive with the OBDII code C1701 for a Mercury parking aid left rear outer sensor fault?

While it is generally safe to drive with this code, it is important to address the issue promptly to ensure the proper functioning of the parking aid system, especially if you rely on it for parking assistance.

6. Can a faulty left rear outer sensor cause other problems in the Mercury parking aid system?

Yes, a faulty left rear outer sensor can affect the overall performance of the parking aid system and may lead to inaccurate distance measurements or intermittent operation.

7. How much does it typically cost to repair the OBDII code C1701 for a Mercury parking aid left rear outer sensor fault?

The cost of repair can vary depending on the specific issue, but replacing a faulty sensor or repairing wiring/connectors may range from $100 to $300, including parts and labor.

8. Are there any preventive measures to avoid triggering the OBDII code C1701 for a Mercury parking aid left rear outer sensor fault?

Regularly inspecting the parking aid sensors and wiring for damage, keeping them clean from debris, and addressing any issues promptly can help prevent the occurrence of this fault code.

9. Can extreme weather conditions affect the performance of the left rear outer sensor in a Mercury parking aid system?

Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can impact the performance of the sensors and potentially trigger fault codes like C1701.

10. How long does it typically take to repair the OBDII code C1701 for a Mercury parking aid left rear outer sensor fault?

The repair time can vary based on the specific issue and the availability of parts, but a skilled technician can usually diagnose and repair this fault within a few hours to a day.