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Engine-Codes – Generic – C2506

C2506 Code - Transmission Shift Level Position Signal Plausibility Failure

Quick Answer

The C2506 code indicates a Transmission Shift Level Position Signal Plausibility Failure. Common causes include Faulty transmission shift level position sensor, Loose or damaged wiring/connectors related to the sensor, Corrosion or debris affecting sensor operation. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C2506 indicates Transmission Shift Level Position Signal Plausibility Failure.
Common causes
Common causes include Faulty transmission shift level position sensor, Loose or damaged wiring/connectors related to the sensor, Corrosion or debris affecting sensor operation.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code C2506 Description

The C2506 code indicates a Transmission Shift Level Position Signal Plausibility Failure. This means that the signal sent by the transmission shift level position sensor is not within the expected range or is not consistent with other signals being received by the vehicle's computer system. This issue can affect the vehicle's performance by causing erratic shifting behavior, difficulty in selecting gears, or even preventing the vehicle from shifting at all.

OBDII Code C2506 - Transmission Shift Level Position Signal Plausibility Failure
C2506 Code - Transmission Shift Level Position Signal Plausibility Failure

Common Causes of C2506

  1. Faulty transmission shift level position sensor
  2. Loose or damaged wiring/connectors related to the sensor
  3. Corrosion or debris affecting sensor operation
  4. Issues with the transmission control module
  5. Electrical system malfunctions

Symptoms of C2506

  1. Erratic shifting behavior
  2. Difficulty in selecting gears
  3. Delayed or harsh shifting
  4. Transmission slipping
  5. Transmission warning light illuminated on the dashboard

How to Fix C2506

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific code and identify the source of the problem.
  2. Inspect the transmission shift level position sensor and its wiring for any visible damage, corrosion, or loose connections. Replace or repair as necessary.
  3. Check the transmission control module for any faults or malfunctions. Address any issues found by repairing or replacing the module.
  4. Clear the code from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to pinpoint the exact cause of the plausibility failure.

Cost to Fix C2506

The typical repair costs for addressing a Transmission Shift Level Position Signal Plausibility Failure can range from $200 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. For a more accurate estimate, it is recommended to inquire about local rates before proceeding with the repair.

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Code C2506 Information for Specific Makes

  • C2506 Chrysler — Transmission Shift Level Position Signal Plausibility Failure
  • C2506 Dodge — Transmission Shift Level Position Signal Plausibility Failure
  • C2506 Fiat — Transmission Shift Level Position Signal Plausibility Failure
  • C2506 Jeep — Transmission Shift Level Position Signal Plausibility Failure
  • C2506 RAM — Transmission Shift Level Position Signal Plausibility Failure
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C2506 Code

1. What are the common symptoms of OBDII code C2506?

- Common symptoms include issues with shifting gears, hesitation or delays in gear changes, and illuminated warning lights on the dashboard.

2. What causes the OBDII code C2506 to trigger?

- The code C2506 is triggered when the Transmission Control Module (TCM) detects a signal plausibility failure in the transmission shift level position sensor.

3. How serious is the OBDII code C2506?

- The code C2506 can affect the performance and drivability of the vehicle, potentially leading to transmission-related issues if not addressed promptly.

4. Can driving with the OBDII code C2506 cause further damage?

- Continuing to drive with the code C2506 may exacerbate transmission problems and could potentially lead to costly repairs if not addressed in a timely manner.

5. How can I diagnose the OBDII code C2506?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the fault code and conducting further testing to pinpoint the exact cause of the signal plausibility failure.

6. What are some DIY repair tips for OBDII code C2506?

- DIY repair options may include checking and cleaning the shift level position sensor, inspecting the wiring for any damage, and ensuring proper connections.

7. Is it recommended to reset the OBDII code C2506 after making repairs?

- Yes, it is recommended to clear the code after repairing the issue to see if the problem has been resolved. If the code persists, further diagnosis may be needed.

8. Can a faulty battery or electrical issues trigger the OBDII code C2506?

- Yes, electrical issues, such as a weak battery or poor connections, can sometimes lead to signal plausibility failures and trigger the code C2506.

9. Should I seek professional help for OBDII code C2506 repairs?

- If you are unsure about diagnosing or repairing the code C2506 yourself, it is advisable to seek the expertise of a qualified mechanic or technician for proper diagnosis and resolution.

10. How much does it typically cost to fix the OBDII code C2506?

- The cost of repairing the OBDII code C2506 can vary depending on the underlying cause, parts needed, and labor costs, but it is advisable to budget for potential transmission-related repairs.

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