P0824 - Transmission Range Sensor Circuit High Input - Common in 2014-2019 Chevrolet Silverado

Quick Answer

P0824 means: P0824 means there is a high input signal from the transmission range sensor.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with P0824? Immediate attention is recommended to avoid further transmission issues.

Common Questions

What does P0824 mean and how does it affect my car?

The P0824 code indicates a problem with the transmission range sensor circuit, which is crucial for the transmission to know which gear it is in. If this code appears, you may experience issues with starting your car, shifting problems, or erratic behavior in how your vehicle drives. Neglecting this code can lead to more serious transmission issues.

What are the most common causes of P0824 and how much does it cost to fix?

The most common cause of the P0824 code is a faulty transmission range sensor, which has a higher likelihood of occurring. Repair costs can range from $150 to $300 for a sensor replacement. Other causes include wiring issues and transmission fluid problems, which can vary in repair costs.

Can I drive my car with P0824 or should I stop immediately?

It is not advisable to drive your vehicle if you see the P0824 code. Doing so can lead to transmission failure or unsafe driving conditions. It’s best to have your vehicle inspected by a professional as soon as possible to avoid further damage.

How can I diagnose P0824 myself using GeekOBD APP?

To diagnose the P0824 code yourself, download the GeekOBD APP on your smartphone. Connect the OBD2 scanner, retrieve the codes, and check the freeze frame data for additional context. Use the app’s functionality to monitor live data, focusing on the transmission range sensor's readings during operation.

What vehicles are most commonly affected by P0824?

The P0824 code is frequently seen in 2014-2019 Chevrolet Silverado models, as well as other GM vehicles from the same era. These vehicles may have known issues, so it’s wise to check for any recalls or technical service bulletins (TSBs) related to the transmission system.

How can I prevent P0824 from happening again?

To prevent the P0824 code from reoccurring, regular maintenance is key. Ensure your vehicle's transmission fluid is changed at recommended intervals, inspect wiring for wear or damage, and replace any faulty components promptly. Also, periodic diagnostics using the GeekOBD APP can help catch issues before they escalate.

What is P0824?

The diagnostic trouble code (DTC) P0824 indicates an issue with the transmission range sensor circuit, specifically that it is reading a high input. This code is commonly seen in vehicles like the 2014-2019 Chevrolet Silverado and other GM models. The transmission range sensor, also known as the neutral safety switch, is responsible for relaying the gear position to the vehicle's engine control unit (ECU). When this sensor detects a position that is not within its expected range, it triggers the P0824 code. Real-world implications of this code can lead to various issues, including difficulty starting the engine, erratic shifting, or the inability to shift the vehicle into gear altogether. Ignoring this code can lead to further transmission problems and potentially costly repairs down the line. If you suspect your vehicle is showing signs of this code, it’s crucial to address it promptly to maintain the vehicle's performance and safety.

System: P - Powertrain (Engine, Transmission, Emissions)

Symptoms

Common symptoms when P0824 is present:

  • Check engine light stays on constantly, indicating a persistent issue with the transmission range sensor.
  • Engine hesitates during acceleration, making it difficult to drive smoothly and causing potential safety risks.
  • Fuel economy decreased by 10-15%, which may lead to increased costs at the pump and reduced overall vehicle efficiency.
  • Inability to shift into certain gears, which can affect driving performance and vehicle control.
  • Unusual shifting patterns, where the transmission might shift harshly or unpredictably.

Possible Causes

Most common causes of P0824 (ordered by frequency):

  1. Faulty transmission range sensor (60% likelihood) - Over time, the sensor can wear out due to heat and vibration, leading to incorrect signals.
  2. Wiring issues (25% likelihood) - Damaged or corroded wiring can disrupt the connection between the sensor and the ECU, causing high input readings.
  3. Transmission fluid problems (10% likelihood) - Low or contaminated fluid can affect sensor operation and lead to erratic behavior.
  4. Control module malfunction (3% likelihood) - A faulty transmission control module can misinterpret signals from the range sensor.
  5. Mechanical issues within the transmission (2% likelihood) - Problems such as internal damage can cause sensors to report inaccurate information.

P0824 Repair Costs

Cost Breakdown by Repair Type

Transmission Range Sensor Replacement

Replacing the faulty transmission range sensor to restore proper function.

  • Total: $150 - $300
  • Success rate: 90%
Wiring Repair

Repairing or replacing damaged wiring that affects the sensor's operation.

  • Total: $100 - $200
  • Success rate: 85%
Fluid Change

Changing the transmission fluid to ensure optimal operation.

  • Total: $80 - $150
  • Success rate: 70%
Money-Saving Tips for P0824
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional P0824 Diagnosis Process

Follow these systematic steps to accurately diagnose P0824. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the transmission range sensor's voltage and resistance (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the transmission range sensor's voltage and resistance (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes using the GeekOBD APP (10-15 minutes)

Step 4: System function test - Verify proper operation after repairs and clear codes using the GeekOBD APP (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: Transmission Range Sensor Replacement in 2015 Chevrolet Silverado

Vehicle: 2015 Chevrolet Silverado 1500, 75,000 miles

Problem: Customer reported check engine light on and difficulty shifting gears.

Diagnosis: Scanned for codes and confirmed P0824. Conducted visual inspection and found the transmission range sensor was faulty.

Solution: Replaced the transmission range sensor and cleared the codes. Verified proper function post-repair.

Cost: $250 (sensor cost: $150, labor: $100)

Result: Customer reported smooth shifting and no further issues.

Case Study 2: Wiring Repair in 2018 GMC Sierra

Vehicle: 2018 GMC Sierra 1500, 50,000 miles

Problem: Check engine light illuminated; transmission was stuck in limp mode.

Diagnosis: OBD2 scan revealed P0824. Inspected wiring and located corrosion on the connector.

Solution: Repaired wiring and connectors, and performed a system function test.

Cost: $180 (parts: $30, labor: $150)

Result: Transmission operated normally after repairs and the check engine light was cleared.

Diagnose P0824

Use GeekOBD APP for professional diagnosis!

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  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: P0824
System: Powertrain (Engine, Transmission, Emissions)
Severity: HIGH
Category: Engine Codes