AutoCodes – Generic – C1701

C1701 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 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 16,154
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 27, 2020
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Code C1701 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 - Parking Aid Left Rear Outer Sensor Fault - AutoCodes.com
C1701 Code - Parking Aid Left Rear Outer Sensor Fault

What are the Possible Causes of the DTC C1701?

  • 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?

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 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 C1701 code?

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Information for Specific Makes

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 Code

1. What are the common symptoms of OBDII code C1701 (Parking Aid Left Rear Outer Sensor Fault)?

The common symptoms include a malfunctioning or disabled rear parking sensor on the left side of the vehicle, leading to inaccurate or no parking aid alerts.

2. What are the possible causes of OBDII code C1701?

The code C1701 can be triggered by issues such as a faulty left rear outer sensor, wiring problems, sensor misalignment, or sensor calibration errors.

3. How can I diagnose a Parking Aid Left Rear Outer Sensor Fault (C1701)?

Diagnosing C1701 involves using an OBDII scanner to retrieve the code, checking the left rear outer sensor for physical damage or corrosion, inspecting the wiring for any breaks or shorts, and verifying sensor alignment.

4. Can I repair the Parking Aid Left Rear Outer Sensor Fault (C1701) myself?

Depending on the cause of the fault, you may be able to repair C1701 yourself by replacing the faulty sensor, repairing damaged wiring, realigning the sensor, or recalibrating the system. However, professional assistance may be required for accurate diagnosis and repair.

5. How important is it to fix OBDII code C1701?

It is important to address code C1701 promptly as it affects the functionality of the rear parking aid system, potentially compromising safety during parking maneuvers.

6. Are there any temporary solutions for OBDII code C1701?

Temporary solutions such as cleaning the sensor, checking and securing loose connections, or resetting the system may help in some cases but should not be considered long-term fixes for the underlying issue.

7. How much does it typically cost to repair OBDII code C1701?

The cost of repairing C1701 can vary depending on the specific cause of the fault, the need for replacement parts, and labor charges. It is recommended to obtain estimates from automotive professionals.

8. Will ignoring OBDII code C1701 cause further damage to my vehicle?

Continuing to ignore code C1701 may lead to persistent issues with the parking aid system, potentially resulting in inaccurate sensor readings, increased risk of collision, or damage to the vehicle during parking.

9. Can extreme weather conditions trigger OBDII code C1701?

Extreme weather conditions, such as heavy rain, snow, or extreme temperatures, can sometimes affect the functionality of parking aid sensors and potentially trigger code C1701.

10. How can I prevent OBDII code C1701 from occurring in the future?

Regularly inspecting and maintaining the parking aid system, keeping sensors clean and free of debris, and addressing any issues promptly can help prevent the recurrence of code C1701.

Discuss the causes and fixes for C1701 OBDII Code

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