P0847 – Audi DTC

Audi DTC P0847 – Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue

DTC P0847 meaning on Audi

DTC P0847 refers to a problem with the Transmission Fluid Pressure Sensor/Switch ‘B’ circuit. This code indicates that the Transmission Control Module (TCM) has detected an issue with the transmission fluid pressure sensor, which is crucial for proper transmission operation. The sensor monitors the fluid pressure within the transmission and sends this information to the TCM to help manage shifting and overall transmission performance.

Audi DTC P0847 symptoms

Common symptoms associated with DTC P0847 may include:

• Transmission slipping or harsh shifting
• Delayed engagement when shifting from park to drive or reverse
• Check Engine Light illuminated
• Reduced fuel efficiency
• Unusual noises from the transmission

Audi DTC P0847 causes

Several factors can lead to the occurrence of DTC P0847, including:

• Transmission fluid level is low
• Transmission fluid pressure sensor failure
• Wiring issues, such as damaged or corroded connectors
• Faulty Transmission Control Module (TCM)
• Internal transmission problems

Audi DTC P0847 seriousness

DTC P0847 can be serious as it may lead to transmission failure if not addressed promptly. The symptoms can affect drivability and may cause further damage to the transmission system. It is essential to diagnose and repair the issue to ensure safe and reliable vehicle operation.

How to diagnose DTC P0847 on Audi

To diagnose DTC P0847, follow these steps:

1. Check the transmission fluid level and condition.
2. Inspect the wiring and connectors related to the transmission fluid pressure sensor.
3. Use a scan tool to read the DTCs and any related codes.
4. Perform a visual inspection of the transmission and its components.
5. Test the transmission fluid pressure sensor using a multimeter.
6. Check for any signs of internal transmission damage.

How to fix DTC P0847 on Audi step-by-step instructions

To fix DTC P0847, follow these steps:

1. Ensure the transmission fluid is at the correct level and replace if necessary.
2. Repair or replace any damaged wiring or connectors related to the transmission fluid pressure sensor.
3. Replace the transmission fluid pressure sensor if it is found to be faulty.
4. If the TCM is suspected to be faulty, consider replacing it.
5. After repairs, check for any internal transmission issues and address them as needed.
6. Clear the DTCs using a scan tool and test drive the vehicle to ensure the issue is resolved.

How to erase DTC P0847 on Audi

To erase DTC P0847, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Access the diagnostic menu on the scanner.
4. Select the option to clear or erase DTCs.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to ensure the code does not return.

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