OBD-II Trouble Code P0732 – Gear 2 Incorrect ratio

 

Causes:
– Low transmission fluid level
– Dirty transmission fluid
– Faulty Shift Solenoids
– Shift Solenoids harness is open or shorted
– Shift Solenoids circuit poot electrical connection
– Transmission mechanical problems
– Transmission hydraulic control circuit

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

When is the code detected?
P0732 is detected when A/T cannot be shifted to the 2nd gear position even if electrical circuit is good.

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

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 (2nd) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.

P0732 OBD-II Trouble Code Information for makes:
P0732 Acura
P0732 Alfa Romeo
P0732 Aston Martin
P0732 Audi
P0732 BMW
P0732 Bentley
P0732 Bugatti
P0732 Cadillac
P0732 Chevrolet
P0732 Chrysler
P0732 Citroen
P0732 Dodge
P0732 Ferrari
P0732 Fiat
P0732 Ford
P0732 Honda
P0732 Hummer
P0732 Hyundai
P0732 Infiniti
P0732 Jaguar
P0732 Jeep
P0732 Lamborghini
P0732 Lancia
P0732 Land Rover
P0732 Lexus
P0732 Lincoln
P0732 Maserati
P0732 Maybach
P0732 Mazda
P0732 Mercedes
P0732 Mitsubishi
P0732 Nissan
P0732 Opel
P0732 Pagani
P0732 Peugeot
P0732 Pontiac
P0732 Porsche
P0732 Renault
P0732 Rolls-Royce
P0732 Saab
P0732 Seat
P0732 Skoda
P0732 Subaru
P0732 Suzuki
P0732 Toyota
P0732 Volkswagen
P0732 Volvo

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