OBD Guide

P093C

Hydraulic Accumulator Solenoid Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Unstable engine operation
  • Reduced engine power
  • Problems with the lubrication system
  • Noises from the accumulator

Causes

  • Accumulator solenoid malfunction
  • Open or short circuit in the circuit
  • Poor contact in connectors
  • Control unit malfunction
  • Solenoid relay problems

How to Fix

  1. Check the condition of the accumulator solenoid
  2. Check the integrity of the circuit and connectors
  3. Measure the solenoid resistance
  4. Check relay operation
  5. Scan the control unit for other errors

Related codes

Error P093C by Vehicle Brand