P07F6

Gear 9 Incorrect Ratio

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$89–167 (est.)

Symptoms

Uncertain shifting to 9th gear
Jerking or slipping when driving at high speed
Switching the box to emergency mode
Increased fuel consumption
The engine warning light comes on

Causes

Low level or contamination of automatic transmission oil
Wear of 9th gear clutches
Transmission Control Solenoid Problems
Malfunction of input/output shaft speed sensors
Mechanical damage inside the gearbox

How to Fix

Check the level and condition of the transmission fluid
Scan the box for other fault codes
Check the operation of the transmission control solenoids
Diagnose automatic transmission shaft speed sensors
If necessary, perform detailed diagnostics of the internal components of the box

Related codes

P07F5 P07F7 P0720