P0734

P0734
Gear 4, Faulty Gear Ratio.





Fault symptoms

CHECK GEARBOX warning lamp on.

TCM in limp-home mode

Conditions
^ Transmission in 4th gear
^ The TCM not in the Limp-home mode.
^ The selector lever is in position 4 or D
^ Fluid temperature over 20°C
^ Engine speed over 400 rpm.
^ Brake pedal not depressed.

Fault criteria
The gear ratio diverges by more than 20% from the expected value when the vehicle is driven in 4th gear.