P0942

Hydraulic Pressure Unit

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$167–556 (est.)

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

P0940 P0941 P0943