OBD Guide

P0944

Hydraulic Pressure Unit Loss of Pressure

P0944 is an OBD-II diagnostic trouble code meaning: Hydraulic Pressure Unit Loss of Pressure. Common causes: transmission fluid leaks, hydraulic pump malfunction. Estimated repair cost: $56โ€“167.

Severity
๐Ÿ”ด High
Can you drive?
Do not drive โ€” repair immediately
Approx. repair cost
$56โ€“167 (est.)

Symptoms

  • Gear shifting problems
  • Switching delays
  • Dips or jerks when moving
  • Transmission overheating
  • Check Engine Light Is On

Causes

  • Transmission fluid leaks
  • Hydraulic pump malfunction
  • Worn valve body seals
  • Clogged hydraulic channels
  • Low or inadequate transmission fluid

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Diagnose possible leaks in the hydraulic system
  3. Check the functionality of the hydraulic pump
  4. Clean or replace the hydraulic unit if necessary
  5. Replacing valve body seals and gaskets

Related codes

Error P0944 by Vehicle Brand

FAQ

What does the P0944 code mean?

P0944 is an OBD-II diagnostic trouble code that indicates: Hydraulic Pressure Unit Loss of Pressure

What causes a P0944 error code?

The most common causes of P0944 include: Transmission fluid leaks; Hydraulic pump malfunction; Worn valve body seals; Clogged hydraulic channels.

How do I fix a P0944 diagnostic trouble code?

To fix P0944: Check the level and condition of the transmission fluid. Diagnose possible leaks in the hydraulic system. Check the functionality of the hydraulic pump. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0944?

Do not drive โ€” repair immediately

How much does it cost to fix P0944?

The estimated repair cost for P0944 is $56โ€“167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat