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2024 VOLVO EX30
Single Motor RWD•RWD•AUTOMATIC•ev
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Repairs0Labor318Torque4466Fluid5DTC738Battery1Maintenance0Recalls0
P3023high severityPowertrain

CVT Line Pressure Control Performance

on 2024 Volvo EX30 Single Motor RWD · RWD

What this code means

The CVT line pressure is not within the expected range for the current operating conditions. Line pressure controls clamping force on the belt/chain.

Symptoms

  • Check Engine Light
  • CVT belt slip
  • Shudder during acceleration
  • Delayed engagement
  • Unusual transmission noise
  • Overheating transmission

Common causes

  • Faulty line pressure solenoid
  • Worn oil pump
  • Clogged CVT fluid filter
  • Low fluid level
  • Internal seal leak

Diagnostic steps

  1. Check CVT fluid level and condition
  2. Monitor line pressure PID on scan tool
  3. Test pressure control solenoid
  4. Inspect CVT fluid filter
  5. Check for internal leaks with pressure test

Repair notes

Replace line pressure solenoid. If oil pump is weak, transmission rebuild may be required.

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