If you’re getting the P1816 Nissan code error, it is likely due to a malfunction or communication error in the vehicle’s Automatic Transmission Park/Neutral Position (PNP) switch. This code can lead to serious engine problems and decreased performance, so it is important to diagnose and repair the issue as soon as possible.
This article explains the causes, symptoms, and cost of diagnosing and fixing the P1816 Nissan code, as well as the meaning of the code and repair methods.
Key Takeaways
- The P1816 Nissan code is triggered when the Automatic Transmission (A/T) Park/Neutral Position (PNP) switch malfunctions or there is a communication error.
- Symptoms of the code include the Engine Light ON or Service Engine Soon Warning Light.
- Diagnosing the code requires visually inspecting the wiring harness and connectors.
- Ignoring the code can lead to poor transmission performance and further damage, so prompt diagnosis and repair are important.
What Is the P1816 Nissan Code
The P1816 Nissan code is related to the Automatic Transmission (A/T) Park/Neutral Position (PNP) switch, which transmits the A/T position indicator signal (PNP switch signal) via CAN communication to the transfer control unit. This code is triggered when the A/T PNP switch signal malfunctions or a communication error occurs.
The P1816 Nissan code meaning is important for diagnosing the issue and performing the repair. The symptoms of this code include the Engine Light ON (or Service Engine Soon Warning Light). Diagnosing the code requires visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the code is usually in the range of $75 to $150 per hour plus additional charges for parts and further repairs.
What Causes the P1816 Nissan Code
Malfunctioning or communication errors in the Automatic Transmission Park/Neutral Position switch can cause the P1816 code to be triggered. Common symptoms of the P1816 Nissan code include an engine light turning on or a “Service Engine Soon” warning light.
It is important to diagnose the code promptly to prevent long-term effects of ignoring it. Ignoring the code can cause the transmission to perform poorly, leading to further damage down the line.
To prevent the code from reoccurring, it is best to visually inspect the related wiring harness and connectors, check for any damaged components, and look for any broken, bent, pushed out, or corroded connector pins. Additionally, it is wise to check for any Factory Service Bulletins issued by Nissan for the P1816 code.
How to Diagnose the P1816 Nissan Code
Diagnosing the P1816 code may involve visually inspecting related wiring harness and connectors, checking for any damaged components, and looking for any broken, bent, pushed out, or corroded connector pins. Common symptoms of the P1816 Nissan code include engine light ON (or Service Engine Soon Warning Light).
It is important to diagnose the P1816 code as it affects the transmission. Ignoring the code can lead to further damage and higher repair costs.
If the P1816 code reoccurs after repairs, it is recommended to inspect the related wiring harness and connectors, check for any damaged components, and look for any broken, bent, pushed out, or corroded connector pins.
How to Repair the P1816 Nissan Code
Repairing the P1816 code may require replacing the Automatic Transmission (A/T) Park/Neutral Position (PNP) switch. Common symptoms of a faulty switch include Engine Light ON (or Service Engine Soon Warning Light). It is important to inspect the related wiring harness and connectors for damage, broken, bent, pushed out, or corroded pins.
Possible solutions for repairing the P1816 Nissan code include replacing the switch and its related wiring harness and connectors. It is also important to check for any Factory Service Bulletins issued by Nissan related to the P1816 code.
The cost of diagnosing and repairing the P1816 Nissan code is affected by labor, diagnosis time, and the type of engine.
Video Help for a Nissan Neutral Safety Switch Replacement
This is a video by the CarsNToys Youtube channel and in it he goes into the replacement of a Neutral Position Safety Switch in a Nissan. This video is 22 minutes long and will give you a better understanding as to what might be going wrong regarding your P1816 Nissan code issue. Click the red play button below to watch it.
Frequently Asked Questions
Is the P1816 Nissan Code the Same as a “Check Engine” Light?
No, the P1816 Nissan Code is not the same as a ‘check engine’ light. However, it is related to the vehicle’s transmission and can be diagnosed using preventative maintenance, diagnostic software, and troubleshooting tips. The cost implications depend on the vehicle’s history, and it’s important to seek professional help if needed.
Can I Fix the P1816 Nissan Code Myself?
Diagnosing and fixing the P1816 Nissan code requires proper diagnosis, the right tools, and knowledge of repair costs and maintenance tips. It is not recommended to tackle this repair yourself and instead seek the help of a professional. Diagnostic techniques are necessary for proper troubleshooting and repair.
How Long Does It Typically Take to Diagnose the P1816 Nissan Code?
Diagnosing the P1816 Nissan code typically takes 1.0 hour of labor. To quickly troubleshoot, consider common causes, DIY solutions, and online resources. Professional repair shops usually charge between $75 – $150 per hour, plus parts and additional repairs.
What Are the Most Common Symptoms of the P1816 Nissan Code?
The most common symptoms of the P1816 Nissan Code are engine light on (or service engine soon warning light), engine noise, transmission issues, sensor malfunction, electrical problems, and stalling issue.
Is There Any Way to Prevent the P1816 Nissan Code From Occurring in the Future?
To prevent the P1816 code from occurring in the future, regular preventive maintenance and use of diagnostic tools is essential. Vehicle history should be checked for any transmission problems, and engine tuning should be done regularly. This can help prevent the code from reappearing.
Final Thoughts
The P1816 Nissan code is an indication of a malfunction or communication error in the vehicle’s Automatic Transmission Park/Neutral Position (PNP) switch. Diagnosing and repairing this issue is essential as it can lead to serious engine problems if left unresolved.
Proper diagnosis and repair of the P1816 Nissan code will ensure that the vehicle is safe and running efficiently. It is important to have a professional inspect and repair the issue as soon as possible in order to prevent any further damage to the vehicle.
