P07F9

Symptoms

• The car does not shift into 9th gear
• Jerking when trying to shift
• The emergency mode of the box is activated
• Increased fuel consumption
• Check Engine Light Is On

Causes

• Low transmission fluid level
• Dirty or worn shift solenoids
• Problems with the automatic transmission valve body
• Malfunction of shaft position sensors
• Transmission ECU software errors

How to Fix

1. Check ATF level and condition, replace if necessary
2. Diagnostics of solenoids and valve body
3. Checking error codes in the automatic transmission ECU memory
4. Software flashing of the control unit (if necessary)
5. Disassembly and troubleshooting of the mechanical part of the automatic transmission when problems are identified

Related codes

Error P07F9 by Vehicle Brand