How to Diagnose and Solve C1835 Current Sense Circuit Failure Issues

Are you a car enthusiast who loves to get your hands dirty? Or perhaps you’re a DIYer who enjoys the satisfaction of fixing things yourself? If so, you’re in the right place. Today, we’re going to delve into the world of car diagnostics, specifically focusing on the C1835 Current Sense Circuit Failure issue.

Understanding the C1835 Current Sense Circuit Failure

First things first, let’s understand what the C1835 Current Sense Circuit Failure is. This is a common issue that can occur in various car models. It’s a diagnostic trouble code (DTC) that indicates a problem with the current sense circuit in your vehicle’s powertrain control module (PCM).

What Causes the C1835 Current Sense Circuit Failure?

The C1835 code is typically triggered when there’s an irregularity in the current sense circuit. This could be due to a variety of reasons, such as a faulty PCM, damaged wiring, or even a malfunctioning current sensor.

Identifying the Symptoms of C1835 Current Sense Circuit Failure

Now that we know what causes the C1835 code, let’s look at some of the symptoms that might indicate this issue. These can include a check engine light that won’t turn off, poor fuel economy, and in some cases, the vehicle may not start at all.

How to Diagnose the C1835 Current Sense Circuit Failure

Diagnosing the C1835 code involves a series of steps. You’ll need a diagnostic scanner, a digital multimeter, and a basic understanding of car mechanics.

Step 1: Use a Diagnostic Scanner

The first step is to connect a diagnostic scanner to your vehicle’s OBD-II port. This will allow you to read any stored trouble codes, including the C1835 code.

Step 2: Inspect the Wiring and Connectors

Next, inspect the wiring and connectors associated with the current sense circuit. Look for any signs of damage, corrosion, or loose connections.

Step 3: Test the Current Sensor

Using a digital multimeter, test the current sensor to ensure it’s functioning correctly. If it’s not, it may need to be replaced.

Solving the C1835 Current Sense Circuit Failure

Once you’ve diagnosed the issue, it’s time to fix it. Here’s how:

Step 1: Repair or Replace Damaged Wiring

If you found any damaged wiring during your inspection, repair or replace it as necessary.

Step 2: Replace the Current Sensor

If the current sensor is faulty, replace it with a new one.

Step 3: Reset the PCM

Finally, reset the PCM to clear the C1835 code. This can be done using a diagnostic scanner.

Conclusion

Fixing a C1835 Current Sense Circuit Failure issue may seem daunting, but with the right tools and a bit of patience, it’s a task that can be tackled by any DIY enthusiast. Remember, the key is to diagnose the problem accurately before attempting any repairs.

FAQs

1. What is a C1835 Current Sense Circuit Failure?

A C1835 Current Sense Circuit Failure is a diagnostic trouble code that indicates a problem with the current sense circuit in your vehicle’s powertrain control module.

2. What are the symptoms of a C1835 Current Sense Circuit Failure?

Symptoms can include a check engine light that won’t turn off, poor fuel economy, and in some cases, the vehicle may not start at all.

3. How can I fix a C1835 Current Sense Circuit Failure?

Fixing a C1835 Current Sense Circuit Failure involves diagnosing the issue using a diagnostic scanner and a digital multimeter, repairing or replacing any damaged wiring, replacing a faulty current sensor, and resetting the PCM.