P2135 Nissan Code – Throttle/Pedal Position Sensor/Switch ‘A’/’B’ Voltage Correlation

You're encountering the P2135 Nissan code due to a voltage discrepancy between throttle position sensors 'A' and 'B'. This issue might stem from faulty sensors, wiring problems, or poor connections, affecting engine performance, drivability, and safety. To diagnose this, you'll need an OBD2 scanner for code verification, a digital multimeter for voltage checks, and possibly replacement components if defects are confirmed. Remedying this quickly is essential, as delayed action can lead to further complications such as erratic engine behavior or vehicle stalling. Understanding the technical aspects and troubleshooting systematically might unveil more about your vehicle's condition.

P2135 Nissan Code Meaning

The P2135 Nissan code indicates a voltage discrepancy between throttle position sensors 'A' and 'B'.

Causes include faulty sensors, wiring issues, or poor connections.

Addressing it promptly is crucial to prevent engine performance problems or throttle unresponsiveness, affecting drivability and safety.

Error Code P2135 Symptoms

When your car shows a P2135 error code, you might see some troubling signs. This code usually means there's an issue with the throttle position sensor's voltage.

Here's what you could notice:

1. Engine Idles Roughly: Your car's engine might idle in a jumpy or rough way. This is easy to spot when you're stopped at a light or driving slowly.
2. Engine Stops Suddenly: Your engine might stall suddenly because the sensor isn't giving the right readings. This can mess up the fuel and air mixture, which the engine needs to run. Stalls can happen without warning, which is risky, especially while you're driving.
3. Sluggish Acceleration: When you press the gas pedal, the car mightn't speed up as it should. It could feel slow or weak, which can be annoying and might make it hard to merge or pass other cars safely.

These issues can make driving difficult and mean the car needs to be checked out soon to stop more problems.

Causes of Nissan P2135 Fault Code

If you're dealing with the P2135 error in your Nissan, it usually points to problems with the throttle body or the pedal position sensors. These issues can mess up how your pedal and throttle work together.

Here's what could be causing it:

1. Throttle Body Problems: The throttle body might be worn out or have electrical issues, leading to wrong voltage signals.
2. Pedal Position Sensor Issues: If this sensor is broken or not working right, it can send wrong information, causing a fault.
3. Bad Electrical Connections: Wires and connectors might be corroded or loose, leading to voltage problems.

Also, the Engine Control Module (ECM) might be acting up and misreading signals.

Normal wear or tough conditions can make these problems worse, so regular checks and maintenance are a good idea. Fixing these things can help clear the P2135 code.

Tools Needed to Diagnose

To find out what's wrong with the throttle or pedal position sensors in a Nissan, you'll need some tools.

These help you figure out what's causing the P2135 error code:

1. OBD2 Scanner: This gadget helps you read the error codes from the car's computer. Pick one that can do more than just basic code reading.
2. Digital Multimeter: Use this to check the voltage and resistance in the throttle position sensor circuit. It should be able to measure up to 20 volts.
3. Screwdrivers and Wrenches: You'll need these to inspect and maybe adjust sensor connections and mounts.

How to Fix P2135 Nissan Error Code – Step by Step

Step 1:

Connect an OBD2 scanner to your Nissan's diagnostic port to confirm the presence of the P2135 error code. Check for any additional related codes that may accompany it.

Step 2:

Turn off the engine and locate the throttle body and pedal position sensors. Carefully inspect the connectors and wiring leading to these components for any signs of damage or corrosion.

Ensure all connections are secure and clean. Repair or replace any damaged parts as needed.

Step 3:

If the connections are intact, use a multimeter to test the throttle body and pedal position sensor. Refer to Nissan's service manual for the correct voltage and resistance specifications.

If the readings fall outside the specified range, identify the faulty component.

Step 4:

Replace any defective parts identified in the previous step. Reconnect all components securely and ensure that everything is properly installed.

Step 5:

Clear the error codes using the OBD2 scanner. Take your Nissan for a test drive to verify that the issue is resolved and the P2135 code doesn't reappear.

Ensure you use proper diagnostic tools and adhere to repair protocols for a successful resolution.

Common Diagnosis Mistakes

Mechanics sometimes miss checking for extra error codes when dealing with the P2135 issue in Nissan cars. This can lead to unnecessary and expensive repairs.

The P2135 code means there's a problem with the voltage between the throttle and pedal position sensors, but it mightn't be the only issue.

Here are three common mistakes to avoid:

1. Not Checking Other Codes: Always look for other diagnostic trouble codes (DTCs). If there are several codes, it might mean there's a bigger electrical problem or the electronic control unit (ECU) might be failing.
2. Skipping a Careful Look: Take your time to inspect the throttle body, wiring, and connectors. Look for any damage or corrosion. A wiring problem can sometimes be mistaken for a sensor issue.
3. Forgetting Calibration: If you replace or fix a sensor, do a throttle body relearn procedure. This helps new parts work well with the vehicle's ECU.

P2135 Nissan Repair Cost

Repairing the P2135 error code on a Nissan can cost different amounts based on your car model, problem severity, and mechanic or dealership rates.

Common Repairs:

• Recalibration or Cleaning: If you only need to recalibrate or clean the throttle body, expect to pay around $150 to $300.
• Replacement Parts: Changing the pedal position sensor or throttle body can be more expensive. Parts may cost from $200 to $600, depending on your car model and part quality.

Labor Costs:

• Mechanics charge $75 to $150 per hour.
• Repairs can take 1 to 3 hours, so labor might cost you $75 to $450.

Total Costs:

– Combining parts and labor, you might pay between $225 and $900.

Always ask for a detailed quote before starting repairs and compare prices from different places to get the best offer.

Related Error Codes on Nissan

If you're dealing with a P2135 error code on your Nissan, you might also see other codes related to the throttle system. These codes often show similar problems, which can be confusing if you don't know what each one means.

Here's a simple list of related error codes you might find:

Each code tells you something might be wrong with the throttle system. P0121 and P0221 talk about performance issues, while P0123 and P0223 mean the sensors are getting more voltage than they should. Knowing these details can help you explain the problem to your mechanic for better repairs.

Can I drive safely with P2135 Nissan?

No, it's not safe to drive your Nissan with a P2135 error code.

This code affects important sensors that help control your engine. It can make your car act unpredictably, like stalling or losing power.

Visit a mechanic to fix it soon.

People Also Ask

Is the P2135 Nissan Code Model-Specific or Common Across All Models?

The P2135 code can show up in different Nissan cars because they use similar parts for the throttle or pedal sensors. So, it's not just for one model. This code means there's a problem with the throttle or pedal sensors in the car.

How Does Weather Affect the P2135 Nissan Error Code Occurrence?

The P2135 error code might show up more when it's really hot or really cold outside. This is because extreme temperatures can make the sensors not work correctly, causing differences in the voltage between the throttle and pedal position sensors.

Can DIY Repairs Permanently Fix Error P2135 on a Nissan?

You can try fixing error P2135 on your Nissan yourself, but it might not last forever. It's often better to have a professional check it to make sure it doesn't happen again. They have the right tools and know-how to fix it for good.

What Is the Typical Battery Drain Impact With a P2135 Code?

A P2135 code usually doesn't drain the battery by itself. But if it makes the car idle unevenly, it could lead to the battery losing charge over time. So, while it's not a direct cause, it might affect the battery later on.

Are There Any Recall Notices for Nissan Models Frequently Showing P2135?

Check Nissan's website or ask your car dealer if there are any recalls for cars with the P2135 code problem. This code is about issues with the throttle and pedal sensors. It's important to know if your car is affected.