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Engine-Codes – Generic – P1847

P1847 Code - 2-3 Shift Solenoid Circuit High Input Voltage

Quick Answer

The P1847 code indicates that there is a high input voltage detected in the 2-3 shift solenoid circuit of the vehicle. Common causes include Faulty shift solenoid, Shorted or open circuit in the shift solenoid wiring, Corrosion or damage to the wiring harness. 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
P1847 indicates 2-3 Shift Solenoid Circuit High Input Voltage.
Common causes
Common causes include Faulty shift solenoid, Shorted or open circuit in the shift solenoid wiring, Corrosion or damage to the wiring harness.
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 07, 2024
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Code P1847 Description

The P1847 code indicates that there is a high input voltage detected in the 2-3 shift solenoid circuit of the vehicle. The shift solenoid is responsible for controlling the flow of transmission fluid to engage the appropriate gear for smooth shifting. When the input voltage is too high, it can lead to issues with the transmission's ability to shift properly between gears, resulting in erratic or harsh shifting behavior.

OBDII Code P1847 - 2-3 Shift Solenoid Circuit High Input Voltage
P1847 Code - 2-3 Shift Solenoid Circuit High Input Voltage

Common Causes of P1847

  1. Faulty shift solenoid
  2. Shorted or open circuit in the shift solenoid wiring
  3. Corrosion or damage to the wiring harness
  4. Issues with the transmission control module
  5. Electrical problems such as a blown fuse or relay

Symptoms of P1847

  1. Harsh or delayed shifting
  2. Transmission slippage
  3. Erratic shifting behavior
  4. Illuminated check engine light
  5. Decreased fuel efficiency

How to Fix P1847

  1. Begin by connecting a diagnostic scanner to retrieve the trouble codes and confirm the presence of code P1847.
  2. Inspect the shift solenoid and wiring harness for any visible damage or corrosion. Replace any damaged components.
  3. Test the shift solenoid with a multimeter to check for proper resistance and continuity.
  4. Clear the trouble codes from the vehicle's computer and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, consult a professional technician for further diagnosis and potential repairs.

Cost to Fix P1847

The cost of repairing a 2-3 shift solenoid circuit high input voltage issue can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can add an additional $150 to $300. Overall, the total repair cost is typically between $250 and $600. However, it's important to note that these estimates can vary based on the location, make and model of the vehicle, and the rates charged by the repair shop. It's recommended to obtain quotes from multiple shops to get a more accurate cost estimate.

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Code P1847 Information for Specific Makes

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.

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