P07DB

7-8 Shift

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–389 (est.)

Symptoms

Delays when switching to 7th or 8th gear
Jerks when shifting gears
The box goes into emergency mode
Increased fuel consumption
Inability to shift to higher gears

Causes

Low or contaminated transmission fluid
Worn clutches or other mechanical components
Problems with the hydraulic control unit
Faulty rotation speed sensors
Software errors in the box control unit

How to Fix

Check the level and condition of the transmission fluid
Diagnose the hydraulic control unit
Check speed sensors and their wiring
Adapt the gearbox
If necessary, replace the mechanical components of the box

Related codes

P07DA P07DC P0796