C1708 — Right Rear Center Sensor Circuit Short to Vbat #

Note: The code description may differ depending on the vehicle manufacturer. Below are some known label variations for this code:

• Right Rear Center Sensor Circuit Short to Battery (Nissan, Infiniti)
• RR Center Sensor Input Voltage High (Hyundai, Kia)
• Rear Center Right Sensor Circuit High (Ford)

Code summary for C1708 #

The C1708 diagnostic trouble code (DTC) indicates a specific issue with the right rear center sensor circuit in a vehicle’s electronic system, most often related to parking assist or proximity sensors. The code specifically points to a short circuit to Vbat, meaning the sensor circuit is receiving battery voltage when it should not. This can be caused by wiring faults, connector problems, or a failed sensor. The code is usually detected by the Electronic Control Unit (ECU), which monitors all sensors for correct operation. Prompt diagnosis and repair are important to restore normal function, especially if parking assistance is regularly used.

Common symptoms for code C1708 #

When C1708 is present, you may notice clear signs that the parking assist or proximity system is not working as intended. The most frequent symptoms include:

• Parking assist warning light illuminated on the dashboard
• Intermittent or complete loss of parking sensor function on the right rear center area
• False warnings or beeping from the parking assist system
• Lack of audible or visual alerts when reversing near obstacles on the right rear
• Possible error messages on the infotainment or driver information screen

Likely causes for code C1708 #

The causes for C1708 are typically electrical in nature. Based on frequency, here are the most common culprits:

1. Damaged or shorted wiring in the sensor circuit (often due to corrosion, pinching, or rodent damage)
2. Defective right rear center parking sensor (internal short or module failure)
3. Corroded or loose connector at the sensor or control module
4. Water intrusion into the sensor harness or connector
5. Faulty parking assistance control module (rare, but possible)

Step-by-step diagnosis for code C1708 #

Diagnosing C1708 requires a systematic approach to isolate the source of the short. Here’s how a professional or experienced DIYer should proceed:

1. Verify the code and freeze-frame data using an OBD-II scan tool and clear the code to see if it returns.
2. Visually inspect the right rear center sensor and its wiring for obvious damage, corrosion, or loose connections.
3. Check the sensor connector for moisture or bent pins; clean and dry as necessary.
4. With the ignition off, use a multimeter to check for continuity between the sensor signal wire and battery voltage (Vbat)—there should be none.
5. Unplug the sensor and retest; if voltage is still present, the short is in the wiring or harness, not the sensor.
6. If the wiring checks out, test the sensor’s internal resistance against OEM specifications. Replace if out of range.
7. If all checks above pass but the code returns, consider testing or replacing the parking assist control module (consult OEM repair manual for procedures).

Possible repairs for code C1708 #

Once the cause is identified, repairs for C1708 are usually straightforward and related to the diagnosed fault:

• Repair or replace any damaged, shorted, or corroded wiring in the right rear center sensor circuit
• Replace the right rear center parking sensor if it is determined to be faulty
• Clean and secure any loose or corroded connectors associated with the sensor
• Seal and protect connectors from future water intrusion
• Replace the parking assist control module if all other components test fine but the problem persists (rare)

Is it safe to drive with code C1708? #

Yes, but with limitations. Code C1708 does not affect critical driving systems like brakes or steering. However, your parking assist or proximity detection will not function properly, which increases the risk of minor collisions or scrapes when reversing or parking. If you rely heavily on these systems, take extra caution or consider repairing the issue before continuing to use tight parking spaces.

Vehicles most commonly affected by C1708 #

This code appears most frequently in vehicles equipped with factory-installed parking assist systems. The following brands and models are often associated with C1708:

• Nissan Altima, Maxima, Rogue, Murano
• Infiniti QX60, Q50, Q70
• Hyundai Santa Fe, Tucson
• Kia Sorento, Sportage
• Ford Explorer, Edge

Note: This list is not exhaustive. Many other vehicles with similar parking assist technology may also log this code.

Common mistakes & best practices for code C1708 #

Even experienced technicians can make errors when troubleshooting C1708. Here are some pitfalls to avoid and tips for a smoother repair:

• Replacing the sensor without checking the wiring—wiring faults are more common than failed sensors.
• Ignoring water intrusion, which often leads to recurring issues if not properly addressed.
• Not verifying the repair by clearing the code and retesting—always confirm the problem is fixed before closing the job.
• Overlooking connector corrosion, especially in regions with harsh winters or humid climates.

Quick FAQ about code C1708 #

Q: Can I disable the parking assist system to avoid this code?
A: Disabling the system may remove warning messages, but the root cause will remain and other dependent features may also be affected. It is best to repair the underlying problem.

Q: Will fixing C1708 require dealer-only tools?
A: Most basic diagnostics and repairs (wiring, sensors, connectors) can be done with standard tools and a quality OBD-II scanner. However, some OEMs may require dealer-level equipment for control module programming or replacement.