Audi DTC P1820 – Pressure Control Solenoid 2 Short to B+
DTC P1820 meaning on Audi
DTC P1820 on an Audi indicates a fault with the Pressure Control Solenoid 2, specifically a short to battery positive (B+). This means that there is an electrical issue causing the solenoid to receive constant power, which can disrupt the transmission’s hydraulic pressure control.
Audi DTC P1820 symptoms
Symptoms of DTC P1820 on an Audi may include harsh shifting, delayed shifting, transmission slipping, decreased fuel efficiency, and in some cases, the transmission may go into a failsafe mode to prevent further damage.
Audi DTC P1820 causes
The common causes of DTC P1820 on an Audi include a faulty pressure control solenoid, damaged wiring or connectors leading to the solenoid, a short circuit in the solenoid circuit, or issues with the transmission control module.
Audi DTC P1820 seriousness
DTC P1820 should be taken seriously as it can lead to further transmission damage if left unresolved. It can cause drivability issues and potentially leave the vehicle stranded if the transmission fails completely.
How to diagnose DTC P1820 on Audi
To diagnose DTC P1820 on an Audi, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes from the vehicle’s onboard computer. They would then inspect the pressure control solenoid 2 and its wiring for any visible damage or signs of a short circuit. Testing the solenoid’s resistance and checking the voltage supply to the solenoid may also be necessary.
How to fix DTC P1820 on Audi
Fixing DTC P1820 on an Audi usually involves replacing the faulty Pressure Control Solenoid 2 and repairing any damaged wiring or connectors. It is important to ensure that the transmission control module is functioning correctly and that there are no other underlying issues causing the fault code.
How to erase DTC P1820 on Audi
Once the underlying issue causing DTC P1820 on an Audi has been fixed, the fault code can be cleared using a diagnostic scanner. This will reset the vehicle’s onboard computer and turn off the check engine light. It is important to verify that the issue has been resolved before clearing the fault code.
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