Possible causes

– Low transmission fluid level
– Shift solenoid mechanical fault
– Hydraulic circuit fault
– Transmission failure

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission will not shift into 6th gear

P0729 Description

This malfunction is detected when the A/T does not shift into 6GR position as instructed by TCM. This is not only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc.

P0729 Information for specific makes

P0729 AUDI
P0729 CHRYSLER
P0729 DODGE
P0729 HYUNDAI
P0729 INFINITI
P0729 LEXUS
P0729 MAZDA
P0729 MITSUBISHI
P0729 NISSAN
P0729 TOYOTA
P0729 VOLKSWAGEN