P0847 Code - Transmission Fluid Pressure Sensor/Switch 'B' Circuit Low
Quick Answer
The Transmission Control Module (TCM) monitors the Transmission Fluid Pressure Sensor/Switch signal. Common causes include Faulty Transmission Fluid Pressure Sensor/Switch 'B', Transmission Fluid Pressure Sensor/Switch 'B' harness is open or shorted, Transmission Fluid Pressure Sensor/Switch 'B' circuit poor electrical connection. 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
- P0847 indicates Transmission Fluid Pressure Sensor/Switch 'B' Circuit Low.
- Common causes
- Common causes include Faulty Transmission Fluid Pressure Sensor/Switch 'B', Transmission Fluid Pressure Sensor/Switch 'B' harness is open or shorted, Transmission Fluid Pressure Sensor/Switch 'B' circuit poor electrical connection.
- 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.
Code P0847 Description
What are the Possible Causes of the DTC P0847?
- Faulty Transmission Fluid Pressure Sensor/Switch 'B'
- Transmission Fluid Pressure Sensor/Switch 'B' harness is open or shorted
- Transmission Fluid Pressure Sensor/Switch 'B' circuit poor electrical connection
How to Fix the DTC P0847?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0847 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P0847 Acura — 3rd Clutch Transmission Fluid Pressure Switch Circuit Short or Stuck ON
- P0847 Buick — Transmission Fluid Pressure Switch 2 Circuit Low Voltage
- P0847 Cadillac — Transmission Fluid Pressure Switch 2 Circuit Low Voltage
- P0847 Chevrolet — Transmission Fluid Pressure Switch 2 Circuit Low Voltage
- P0847 Chrysler — Transmission Fluid Pressure Sensor/Switch 'B' Circuit Low
- P0847 Dodge — Transmission Fluid Pressure Sensor/Switch 'B' Circuit Low
- P0847 GMC — Transmission Fluid Pressure Switch 2 Circuit Low Voltage
- P0847 Honda — 3rd Clutch Transmission Fluid Pressure Switch Circuit Short or Stuck ON
- P0847 Jeep — Transmission Fluid Pressure Sensor/Switch 'B' Circuit Low
- P0847 Mercedes-Benz — Transmission Fluid Pressure Sensor/Switch 'B' Circuit Low
Frequently Asked Questions about P0847 Code
1. What are the common symptoms of OBDII code P0847?
Symptoms may include harsh shifting, transmission slipping, difficulty shifting gears, and in some cases, the transmission may go into limp mode.
2. What can cause the Transmission Fluid Pressure Sensor/Switch 'B' Circuit Low code (P0847) to trigger?
Potential causes include a faulty transmission fluid pressure sensor/switch, wiring issues, low transmission fluid levels, or a malfunctioning transmission control module.
3. How serious is the P0847 OBDII trouble code?
While the vehicle may still be operable with this code present, it is essential to address it promptly to avoid potential transmission damage and drivability issues.
4. How can I diagnose the source of the P0847 code?
Diagnosis typically involves using a scan tool to read the code, checking the transmission fluid level and condition, inspecting the wiring and connectors, and testing the transmission pressure sensor/switch.
5. Can I continue driving my vehicle with the P0847 code?
It is not recommended to continue driving with the P0847 code present, as it can lead to transmission problems and potentially cause further damage.
6. What are some repair tips for addressing the P0847 code?
Repair options may include replacing the transmission fluid pressure sensor/switch, repairing any damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the trouble code.
7. How much does it typically cost to repair the P0847 code?
The cost of repairs can vary depending on the specific cause of the issue, but it may involve parts replacement, labor costs, and potential diagnostic fees from a professional mechanic.
8. Can I reset the P0847 code myself?
You can attempt to clear the code using an OBDII scanner, but it is crucial to address the underlying issue causing the code to prevent it from reoccurring.
9. Is it possible to prevent the P0847 code from appearing again?
Regular maintenance, checking transmission fluid levels, addressing any leaks promptly, and ensuring proper wiring connections can help prevent the recurrence of the P0847 trouble code.
10. How long does it typically take to repair the P0847 code?
The repair time can vary depending on the exact cause of the issue and the complexity of the repair needed, but it may range from a few hours to a day in some cases.
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