AutoCodesGeneric – C1703

C1703 Code - Parking Aid Right Rear Outer 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 Outer Sensor, Parking Aid Right Rear Outer Sensor harness is open or shorted, Parking Aid Right 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
C1703 indicates Parking Aid Right Rear Outer Sensor Circuit Failure.
Common causes
Common causes include Faulty Parking Aid Right Rear Outer Sensor, Parking Aid Right Rear Outer Sensor harness is open or shorted, Parking Aid Right 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 16,717
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 C1703 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 C1703 - Parking Aid Right Rear Outer Sensor Circuit Failure - AutoCodes.com
C1703 Code - Parking Aid Right Rear Outer Sensor Circuit Failure

What are the Possible Causes of the DTC C1703?

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

How to Fix the DTC C1703?

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 C1703 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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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 C1703 Code

1. What does the OBDII code C1703 mean?

C1703 indicates a failure in the parking aid system, specifically in the right rear outer sensor circuit, which could result in the sensor not functioning properly.

2. What are the symptoms of code C1703?

Symptoms include the parking aid system not detecting objects on the right rear side, a warning light or message on the dashboard, and audible alerts not working as expected.

3. What causes the C1703 code?

Common causes include a faulty parking aid sensor, damaged sensor wiring or connector, corrosion, or an issue with the parking aid control module.

4. Can I still drive with the C1703 code?

Yes, you can drive with the code present, but the parking aid system may not function correctly, increasing the risk of collisions while parking.

5. How do I diagnose the C1703 code?

Diagnose the code by visually inspecting the right rear outer sensor and its wiring for damage, testing the sensor with a multimeter, and using a scan tool to check for additional related codes.

6. How do I fix the C1703 code?

Repairs may involve replacing the faulty parking aid sensor, repairing damaged wiring or connectors, cleaning corroded terminals, or reprogramming the control module if necessary.

7. How much does it cost to fix code C1703?

The repair cost can vary but typically ranges from $100 to $300, depending on whether the sensor, wiring, or control module needs replacement.

8. Can I clear the C1703 code without fixing it?

Clearing the code without fixing the issue may temporarily reset the warning, but the code will likely return if the underlying problem isn’t resolved.

9. What tools are needed to repair a C1703 code?

You’ll need a scan tool or OBDII code reader, a multimeter, and basic tools for removing and inspecting the sensor and wiring.

10. Could a dirty sensor cause the C1703 code?

Yes, dirt or debris on the sensor can interfere with its operation, so cleaning the sensor may resolve the issue if no other damage is present.

Discuss the causes and fixes for C1703 OBDII Code

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