Possible causes

– Low transmission fluid level
– Dirty transmission fluid
– Shift solenoids
– Transmission mechanical problems
– Transmission hydraulic control circuit

Tech notes

Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

When is the code detected?

P0735 is detected when A/T cannot be shifted to the 5th gear position even if electrical circuit is good.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Incorrect transmission shifting

P0735 Description

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (5th) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.

P0735 Information for specific makes

P0735 ACURA
P0735 AUDI
P0735 BMW
P0735 CHRYSLER
P0735 DODGE
P0735 FORD
P0735 HONDA
P0735 HYUNDAI
P0735 INFINITI
P0735 JEEP
P0735 KIA
P0735 LAND-ROVER
P0735 LEXUS
P0735 MAZDA
P0735 MITSUBISHI
P0735 NISSAN
P0735 SATURN
P0735 SUBARU
P0735 SUZUKI
P0735 TOYOTA
P0735 VOLKSWAGEN