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P1730 Nissan Code - Automatic Transmission Interlock

Quick Answer

The P1730 code for Nissan vehicles specifically refers to an issue with the automatic transmission interlock. Common causes include Malfunctioning automatic transmission interlock solenoid, Damaged or misaligned interlock cable, Faulty brake light switch. 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
P1730 Nissan indicates Automatic Transmission Interlock.
Common causes
Common causes include Malfunctioning automatic transmission interlock solenoid, Damaged or misaligned interlock cable, Faulty brake light switch.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1730 Nissan Description

The P1730 code for Nissan vehicles specifically refers to an issue with the automatic transmission interlock. This means that there is a problem with the mechanism that prevents the transmission from being shifted out of "Park" without the use of the brake pedal. The automatic transmission interlock system is designed to ensure that the vehicle cannot be accidentally shifted into gear when the brake pedal is not depressed, thus enhancing safety.

OBDII Code P1730 Nissan - Automatic Transmission Interlock
P1730 Nissan Code - Automatic Transmission Interlock

Common Causes of P1730 Nissan

  1. Malfunctioning automatic transmission interlock solenoid.
  2. Damaged or misaligned interlock cable.
  3. Faulty brake light switch.
  4. Issues with the transmission control module.
  5. Electrical wiring issues affecting the automatic transmission interlock system.

Symptoms of P1730 Nissan

  1. Inability to shift out of "Park" without using the manual override feature.
  2. Transmission getting stuck in a specific gear.
  3. Illumination of the check engine light on the dashboard.
  4. Brake lights not functioning properly.

How to Fix P1730 Nissan

  1. Diagnose the specific cause of the P1730 code using a scan tool to identify the faulty component.
  2. Replace the malfunctioning automatic transmission interlock solenoid, interlock cable, brake light switch, or transmission control module, depending on the diagnosis.
  3. Test the repaired system to ensure proper functionality and address any related issues.
  4. Clear the diagnostic trouble codes from the vehicle's computer to reset the system.
  5. Perform a road test to verify that the transmission can shift smoothly between gears without any issues.

Cost to Fix P1730 Nissan

The typical repair costs for addressing the P1730 code could range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on various factors such as location, vehicle make and model, and engine type. It's important to consider that rates in metropolitan areas or at dealerships may be higher, while independent shops might offer more competitive pricing. To obtain a more accurate estimate, it is recommended to contact local auto repair shops for quotes.

When is the Code Detected?

Diagnostic Trouble Code (DTC) P1730 is detected when Transmission Control Module (TCM) does not receive the proper voltage signal from the sensor and switch.

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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 P1730 Nissan Code

1. What does OBDII code P1730 for Nissan mean?

The OBDII code P1730 in Nissan vehicles refers to an issue with the Automatic Transmission Interlock.

2. What are the common symptoms of OBDII code P1730 in a Nissan?

Common symptoms of OBDII code P1730 in a Nissan may include difficulty shifting gears, the transmission not engaging properly, and the vehicle not moving when in gear.

3. What are the possible causes of OBDII code P1730 in a Nissan?

Possible causes of OBDII code P1730 in a Nissan include a faulty transmission range sensor, issues with the transmission solenoid, wiring problems, or a malfunctioning interlock control unit.

4. How can I diagnose OBDII code P1730 in my Nissan?

Diagnosing OBDII code P1730 in a Nissan typically involves using a professional OBDII scanner to read the code and then conducting further testing to pinpoint the exact cause, such as checking the transmission range sensor or inspecting the wiring.

5. How do I repair OBDII code P1730 in my Nissan?

Repairing OBDII code P1730 in a Nissan may involve replacing the transmission range sensor, fixing any wiring issues, replacing the interlock control unit, or addressing any other specific component causing the problem.

6. Can OBDII code P1730 in a Nissan be fixed at home?

Depending on the specific cause of the OBDII code P1730, some DIY enthusiasts may be able to address the issue at home by following repair guides and using the necessary tools and parts.

7. Is it safe to continue driving with OBDII code P1730 in my Nissan?

It is not recommended to continue driving with OBDII code P1730 in a Nissan as it can lead to further damage to the transmission and potentially cause safety hazards on the road.

8. How much does it cost to repair OBDII code P1730 in a Nissan?

The cost of repairing OBDII code P1730 in a Nissan can vary depending on the exact cause of the issue, the labor rates in your area, and the cost of parts needed for the repair.

9. Can OBDII code P1730 in a Nissan trigger the check engine light?

Yes, OBDII code P1730 in a Nissan can trigger the check engine light on the dashboard, indicating that there is an issue with the Automatic Transmission Interlock system.

10. Will resetting the OBDII code P1730 in a Nissan make the problem go away?

Resetting the OBDII code P1730 in a Nissan may temporarily turn off the check engine light, but it will not fix the underlying issue causing the code to appear. It is important to diagnose and repair the problem to prevent it from reoccurring.

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