P0942
Hydraulic Pressure Unit
P0942 is an OBD-II diagnostic trouble code meaning: Hydraulic Pressure Unit. Common causes: malfunction of the hydraulic control unit, problems with wiring to the hydraulic block. Estimated repair cost: $167–556.
Symptoms
- Jerky gear shifting
- The gearbox goes into emergency mode
- Check Engine light comes on
- Reduced acceleration dynamics
- Increased engine speed when switching
Causes
- Malfunction of the hydraulic control unit
- Problems with wiring to the hydraulic block
- Low or contaminated transmission fluid
- Malfunction of pressure sensors
- Mechanical damage inside the gearbox
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the hydraulic control unit
- Check the integrity of wiring and connectors
- Replace hydraulic unit if necessary
- Adapt the gearbox after repair
Related codes
Error P0942 by Vehicle Brand
FAQ
What does the P0942 code mean?
P0942 is an OBD-II diagnostic trouble code that indicates: Hydraulic Pressure Unit
What causes a P0942 error code?
The most common causes of P0942 include: Malfunction of the hydraulic control unit; Problems with wiring to the hydraulic block; Low or contaminated transmission fluid; Malfunction of pressure sensors.
How do I fix a P0942 diagnostic trouble code?
To fix P0942: Check the level and condition of the transmission fluid. Diagnose the hydraulic control unit. Check the integrity of wiring and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0942?
Yes, but get it checked soon
How much does it cost to fix P0942?
The estimated repair cost for P0942 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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