P093D
Hydraulic Accumulator Solenoid Performance
What it means
P093D means Hydraulic Accumulator Solenoid Performance.
Where it lives
For P093D, start at the solenoid the description names.
Check these first
- A hydraulic accumulator solenoid that does not hold pressure
- Debris in the accumulator solenoid valve
- A weak accumulator spring or charge
- A TCM driver fault on the accumulator solenoid circuit
What to do next
- Read hydraulic accumulator solenoid command on a scan tool
- Watch accumulator pressure with the solenoid commanded
- Check the fluid level and condition
- Measure the accumulator solenoid resistance
- Replace the solenoid if the pressure bleeds off
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.