P07A4

Transmission Friction Element B Performance/Stuck Off

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Transmission slipping
Hard gear shifts
Inability to engage certain gears
Increased engine speed during acceleration
Check Engine light comes on

Causes

Wear of friction linings of element B
Low or contaminated transmission fluid
Element Control Solenoid B Malfunction
Problems with the hydraulic circuit
Transmission control module (TCM) malfunction

How to Fix

Check the level and condition of the transmission fluid
Diagnose the operation of control solenoids
Check the pressure in the hydraulic system
Perform transmission adaptation using a scanner
If necessary, replace friction elements or solenoids

Related codes

P07A5 P07A3 P07A6