** Troubleshooting Guide for a 2009 Nissan Altima with No Key Detected Issue**

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Many car owners have experienced the frustration of their vehicle not starting due to a “No Key Detected” error. In this article, we will discuss the steps to troubleshoot and resolve this issue specifically for a 2009 Nissan Altima. We will explore various methods suggested by experts and share our experiences with attempting to fix the problem. So, if you’re facing this issue with your 2009 Altima, keep reading to find a solution.

Step-by-Step Troubleshooting Guide

Step 1: Checking the Battery Level

The first step in troubleshooting the “No Key Detected” issue is to check the battery level of your key fob. Some car owners have reported success by simply holding the key fob near the start button. With a low battery, this approach may reprogram the key and allow the car to start. However, in our case, this method did not work, and the yellow light indicating “No Key Detected” persisted.

Step 2: Reprogramming the Key

Another method suggested by experts is to reprogram the key by inserting it into the designated slot in the center console. However, despite trying this method, our 2009 Altima still refused to start.

Step 3: Checking the Steering Control Box

After exploring various online videos, we came across a suggestion to check the steering control box, which is located behind a panel in the interior of the car. The recommendation was to remove the panel and gently tap the control box with a hammer. Surprisingly, this method proved successful in starting the car. However, we later found out that this was a temporary fix and indicated a faulty interlock steering interlock module.

Step 4: Disconnecting the Battery

As a next step, we attempted to disconnect the battery to reset the system. By disconnecting the negative terminal and connecting it to the positive terminal for about a minute, we hoped to discharge the system and resolve the issue. Unfortunately, this method did not work for us, and the “No Key Detected” problem persisted.

The Faulty Interlock Steering Interlock Module

In our case, it became evident that the issue with the “No Key Detected” error lay with the interlock steering interlock module. This is a common problem in 2009 Nissan Altimas, and many customers opt to replace this module to resolve the issue. The interlock module can be purchased from various sources, including Amazon or eBay, and comes with detailed instructions for installation.

Replacing the Interlock Steering Interlock Module

To replace the faulty interlock steering interlock module, follow these steps:

  1. Access the interior of the car by removing the panel using a pocket screwdriver.
  2. Locate the interlock module, which should be visible once the panel is removed.
  3. Disconnect any wires connected to the module.
  4. Remove any screws holding the module in place, including a Phillips screw and the OBD2 plug screw.
  5. Carefully remove the module from its position, ensuring that it doesn’t get damaged in the process.
  6. Install the new interlock module by reversing the removal steps.
  7. Once installed, connect the battery and test if the “No Key Detected” issue is resolved.

Additional Considerations

While replacing the interlock module may solve the “No Key Detected” problem, it is essential to note that reprogramming the replacement module may be necessary. Some customers have reported issues after reprogramming the module using a dongle provided by the manufacturer. Therefore, it is advisable to proceed with caution and read reviews of the dongle before attempting to use it.


In conclusion, the “No Key Detected” issue in a 2009 Nissan Altima can be frustrating, but it is not an uncommon problem. By following the troubleshooting steps outlined in this article, you may find a solution to the problem. However, in some cases, like ours, the issue may lie with a faulty interlock steering interlock module, which may require professional assistance to resolve. Keep in mind that each case may differ, and it’s essential to consider the specific circumstances of your vehicle.