P1847 GMC Code - 2-3 Shift Solenoid Circuit High Input Voltage
Quick Answer
The P1847 GMC code indicates a problem with the 2-3 shift solenoid circuit in the vehicle's transmission system. Common causes include Faulty 2-3 shift solenoid, Wiring issues in the solenoid circuit, ECM malfunction. 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 GMC indicates 2-3 Shift Solenoid Circuit High Input Voltage.
- Common causes
- Common causes include Faulty 2-3 shift solenoid, Wiring issues in the solenoid circuit, ECM malfunction.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1847 GMC Description
The P1847 GMC code indicates a problem with the 2-3 shift solenoid circuit in the vehicle's transmission system. This code specifically points to a high input voltage in the circuit, which can lead to improper shifting of gears. The 2-3 shift solenoid is responsible for controlling the hydraulic pressure that activates the 2-3 gear shift in an automatic transmission. When the solenoid receives a signal from the vehicle's engine control module (ECM), it opens or closes to allow transmission fluid to flow and engage the appropriate gear.
Common Causes of P1847 GMC
- Faulty 2-3 shift solenoid
- Wiring issues in the solenoid circuit
- ECM malfunction
- Overvoltage in the electrical system
- Poor electrical connections
Symptoms of P1847 GMC
- Harsh or delayed shifting between gears
- Jerky or rough driving experience
- Decreased fuel efficiency
- Check Engine Light illuminated
- Transmission slipping
How to Fix P1847 GMC
- Diagnose the issue by using a scan tool to read the code and pinpoint the exact cause of the high input voltage in the 2-3 shift solenoid circuit.
- Inspect the wiring and connections related to the solenoid circuit for any signs of damage or corrosion. Repair or replace as needed.
- Test the 2-3 shift solenoid itself to determine if it is faulty and causing the high input voltage issue. Replace the solenoid if necessary.
- Clear the code from the vehicle's ECM and test drive the vehicle to ensure proper shifting between gears.
- If the issue persists, further diagnostics may be required to identify any underlying electrical problems or component failures that could be contributing to the code.
Cost to Fix P1847 GMC
The typical repair costs for addressing a P1847 GMC code related to the 2-3 shift solenoid circuit high input voltage can range from $200 to $500, depending on the extent of the issue and the specific repairs needed. This estimate includes the cost of parts such as a new solenoid and any necessary wiring repairs, as well as labor costs for diagnosis and repair. It's important to note that the actual cost can vary based on factors such as the vehicle make and model, location, and the rates charged by individual repair shops. It's advisable to consult with a professional mechanic for a more accurate cost estimate tailored to your specific situation.
Need more information about the P1847 GMC code?
Need more information on how to fix the P1847 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1847 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1847 GMC Code
No Frequently Asked Questions about P1847 GMC Code found.
Discuss the causes and fixes for P1847 GMC OBDII Code
Code P1847 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.