C1173 Nissan Code – Stop Lamp Control Relay Circuit

When you encounter the C1173 Nissan code, it indicates a fault within the stop lamp control relay circuit, which is integral to the operation of your brake lights and potentially affects vehicle safety and network communication, including the ABS and airbag systems. This issue typically arises from faulty wiring, a defective relay, or control module failures. Diagnosing it demands a thorough inspection using tools like a digital multimeter and an OBD-II scanner to ascertain the exact cause and execute appropriate repairs. Fixing this error involves checking and possibly replacing damaged components to ensure all systems communicate effectively without safety hazards. By addressing these details, you'll ensure your car's reliability and safety.

C1173 Nissan Code Meaning

The C1173 code on a Nissan indicates a Stop Lamp Control Relay Circuit issue.

It usually involves faulty wiring, a defective relay, or control module problems.

A technician will inspect, test, and possibly replace or repair the relay or wiring to restore brake light functionality.

Error Code C1173 Symptoms

If your Nissan has the C1173 error code, you might notice a few problems:

  • The check engine light might come on. This could mean there's an issue with the car's communication network.
  • You might feel the transmission acting up, like rough shifts or pauses. This happens because the network problems affect how the transmission works.
  • The anti-lock brakes (ABS) could start acting strangely. This is due to the same network issues.
  • The airbag warning light might light up, which suggests there could be problems with the car's safety systems.

These issues can make driving less safe and comfortable. If you notice them, have a professional check your car to sort out the C1173 code.

Causes of Nissan C1173 Fault Code

If your Nissan shows the C1173 error code, it means there's an issue with the brake light circuit. Here are some possible reasons:

  • The brake light switch might be broken. This switch is needed to make the brake lights work. If it fails, your brake lights won't turn on, and the car's systems might get confused.
  • Wiring problems in the brake light circuit can also cause this error. Broken or rusty wires can cause bad connections, which stop the brake lights from working properly.
  • Water or moisture near the brake light relay can cause trouble. If water gets in, it can cause short circuits, which trigger the C1173 code.
  • A faulty control module that handles the brake light circuit could be another reason. This module helps manage different electrical parts, and if it doesn't work right, it can cause issues like the C1173 error.

Fixing these problems will help keep your car safe and working well.

Tools Needed to Diagnose

To figure out what's causing the Nissan C1173 error code, you'll need some specific tools. These help you find and fix the problem quickly and correctly. Here's what you should have:

  • Digital Multimeter: Use this to check voltage and continuity in the stop lamp control relay circuit. It helps you find electrical issues.
  • OBD-II Scanner: This reads and clears error codes, including C1173, giving you details about the problem.
  • Vehicle-Specific Wiring Diagrams: These diagrams show how your Nissan model's stop lamp control circuit is set up, helping you find possible issues.
  • Test Light: Use this to check for power and ground at different points in the circuit, ensuring the relay gets the right signals.

Also, have basic hand tools like pliers and screwdrivers to access and remove parts for inspection. These tools get you ready to handle the C1173 fault code.

How to Fix C1173 Nissan Error Code – Step by Step

Step 1:

Begin by scanning your vehicle using an OBD-II scanner. This will help you retrieve the C1173 Nissan error code and any related codes that may provide insight into the underlying issue.

Step 2:

Conduct a thorough inspection of the wiring and connectors linked with the Local Area Network (LAN). Look for any signs of damage, corrosion, or loose connections that might be disrupting communication.

Step 3:

Test the control modules associated with the LAN. Identify any modules that are malfunctioning and replace them to ensure that proper communication is restored.

Step 4:

Once the necessary repairs and replacements have been made, clear the error codes from your vehicle's computer. This will remove the C1173 Nissan error code and any related codes that were previously detected.

Step 5:

Common Diagnosis Mistakes

When dealing with the C1173 Nissan error code, you should be careful to avoid common mistakes that can complicate repairs. Here are some errors to watch out for:

  • Missing Wiring and Connector Issues: Sometimes, damaged or corroded connections can be missed, which can disrupt signals and cause the C1173 code to appear.
  • Skipping Software Updates: The problem might be fixed by updating the software instead of looking for hardware issues. Always check if there are software updates needed.
  • Not Doing Continuity Tests: Make sure to test the Local Area Network thoroughly. If you skip this, you might miss problems that come and go, causing ongoing issues.
  • Misreading Trouble Codes: Don't just depend on trouble codes. Look at the car's symptoms too. The C1173 code might be a sign of another problem, not the main issue.

Being careful in your approach will help you find the real problem and fix it properly.

C1173 Nissan Repair Cost

Fixing the C1173 code on a Nissan can cost between $200 and $1000, depending on the issue. If it's something simple like loose connections or a small software problem, you might pay less than $300.

These types of repairs are usually quick and don't need expensive parts.

On the other hand, if the problem is more serious, such as damaged wires or bad control modules, the price can be much higher. The parts might cost from $100 to $500.

Plus, labor costs at most repair shops range from $80 to $150 per hour, which can quickly add up.

It's a good idea to save some money for these repairs. The exact cost depends on what needs fixing and the rates of the repair center you choose.

Fixing these issues helps keep your Nissan running well.

Related Error Codes on Nissan

When a C1173 error shows up on your Nissan, you might also see codes like C1171 and C1172. These codes are linked and can mess with your brake lights and cruise control.

Here's a quick look at these related error codes:

Code Description
C1171 Trouble with the stop lamp switch
C1172 Problem with the stop lamp relay circuit
C1173 Issue with the stop lamp control relay circuit
Other Could include codes related to wiring issues

You might notice your brake lights not working right or get warnings on your dashboard. To figure out what's wrong, check the stop lamp relay and wiring. Bad connections or broken cables might cause these codes, so make sure everything's in good shape.

If you're not sure how to fix these issues, ask a professional for help.

Can I drive safely with C1173 Nissan?

It's not safe to drive your Nissan with the C1173 error code.

This code means there might be problems with important systems like brakes and transmission.

These issues can make driving dangerous.

Get your car checked and fixed right away to stay safe.

People Also Ask

Does Weather Affect the C1173 Nissan Error Code Occurrence?

Weather can cause error codes in cars. Rain and humidity might make wires short-circuit. Cold weather can make wires crack. Humidity can rust parts, and really hot weather can break things. All these problems might cause the car to show error codes like C1173.

Will a C1173 Code Impact My Car's Resale Value?

Yes, a C1173 code can lower your car's resale value. Buyers might worry that the car isn't reliable and offer less money. Fixing the problem before selling can help keep the car's value and make it more attractive to buyers.

Can Aftermarket Modifications Trigger the C1173 Code?

Yes, changing parts on your car or messing with the wires can cause the C1173 error code. If the new parts don't work well with your car or if the wiring is not done right, it can mess up the lights.

Is the C1173 Code Common in Specific Nissan Models?

Yes, the C1173 code is often seen in Nissan cars like the Altima, Sentra, and Rogue. This happens mostly in models from 2002 to 2015. It is because these cars have similar electrical systems and communication setups.

How Often Does the C1173 Code Reappear After Repair?

If you've fixed the C1173 code and it keeps showing up again, it might be because there are still problems like bad wires or the repair wasn't done well. You may need to check it more closely to stop it from coming back.

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