The P0943 trouble code indicates that the hydraulic pressure unit cycling period is too short. This unit is responsible for regulating the hydraulic pressure within the transmission system. When the cycling period is too short, it can lead to improper transmission operation and performance.
P0943 Hydraulic Pressure Unit Cycling Period Too Short
Code symptoms P0943.
1. Transmission slipping.
2. Erratic shifting.
3. Harsh or delayed shifting.
4. Transmission overheating.
5. Check Engine Light illuminated.
Causes of the code P0943.
1. Faulty hydraulic pressure unit.
2. Wiring or connector issues in the hydraulic pressure unit circuit.
3. Low transmission fluid level.
4. Hydraulic system leaks.
5. Internal transmission problems.
Code Solutions P0943.
1. Inspect the hydraulic pressure unit for any signs of damage or malfunction and replace if necessary.
2. Check the wiring and connectors in the hydraulic pressure unit circuit for damage or corrosion. Repair or replace any damaged wiring or connectors.
3. Ensure the transmission fluid level is correct and top up if necessary.
4. Inspect the hydraulic system for leaks and repair as needed.
5. If other transmission issues are suspected, perform a thorough diagnosis or seek professional assistance.