What is the P0735 fault code What is the description for Gear 5 Incorrect Gear Ratio Failure? How do you fix the P0735 fault code What are the causes and symptoms of the P0735 error code?
What is the P0735 Fault code? What does it mean
Fault code “P0735” indicates that an automatic transmission is unable to shift into 5th gear. This code is used when the 5th gear ratio doesn’t meet manufacturer’s standards.
Modern vehicles equipped with automatic transmission/transaxle use a torque converter between engine and transmission to increase engine torque output and drive the rear wheels. Computer-controlled automatic transmission can use multiple gear ratios to improve vehicle speed without reducing engine power. Modern vehicles can have multiple gear ratios to improve fuel efficiency. Based on vehicle speed and throttle position calculations, the powertrain controller module (PCM), adjusts the gear ratio.
The ratio of gears is the difference in the rotational speeds between two gears with different diameters. The output speed is divided by the input speed to calculate the gear ratio. To determine these values, both the input speed and output speed sensors can be used in transmission.
The Powertrain Control Module, (PCM), or Transmission Control Module(TCM) uses data from these sensors to determine the gear ratio and torque converter slippage. When the PCM finds that the fifth ratio of the gears is too low, the P0735 fault code is generated.
There are many vehicles that can be affected by the P0735 fault code, including models from Ford, BMW and Jaguar, Volkswagen, Nissan. Dodge. Duramax, Skoda. Audi. Chrysler. Volvo. Opel. Mitsubishi.
What is the P0735 Fault Code?
Below are some reasons to set fault code P0735:
- – Low transmission oil
- Transmission oil leaks
- Filter and transmission oil that is not clean can restrict hydraulic passages
- – Damaged or worn cables
- – 5th gear solenoid defect
- – A problem with the transmission or blockage
- Defective hydraulic control device
- – Defective transmission pump
- – Defective torque converter clutch
- – Defective transmission control module (TCM), or PCM.
What are the symptoms of the P0735 Fault Code?
You may experience the following symptoms if your vehicle has the code P0735:
- – Illumination and control of the check engine light
- – Delayed Shifting
- – Vehicle does not shift into 5th Gear or is stuck in 5th Gear
- Gearbox shifting in and out of gears
- – Increased fuel consumption
- Unexpected engine stop
How do I fix the P0735 fault code?
- – Filling in the gaps with transmission oil
- After flushing the system, change any oil that is dirty or burned.
- – Replacing a damaged shift solenoid
- – Repair damaged cables and connectors in the transmission control circuit
- Repairing a solenoid harness with a short or open shift
- – Repair of clogged transmission cables
- Repair or replacement of damaged transmission or torque converter parts
- – Repair or reprogramming of an inoperable TCM or PCM
How serious is the P0735 Fault code?
Code P0735 can be described as an increased fuel consumption or the vehicle not being able to accelerate properly. However, any issue that prevents the transmission shifting from occurring can cause it to heat up and cause severe damage. No matter what the outcome, it is important to address any transmission problem as soon as possible. It is not recommended that you use a vehicle equipped with a malfunctioning transmission.
