What is the P2035 fault number? What are the symptoms and causes of the P2035 error code? How can I fix P2035 fault? Low Bank Circuit for Exhaust Temperature Sensor (EGT), Description of Sensor 2 Error
Definition of P2035 OBD-2 Fault Code
Circuit Low Bank 2 Sensor Exhaust Gas Temperature Sensor EGT (Circuit Low Bank 2) 2
The status of the EGT sensor located at the front of the catalytic convertor is P2035. This sensor’s sole purpose is to protect the converter against excessive heat damage.
What is the P2035 Engine Failure Code?
This code is indicative of a problem in either the EGT sensor, or the electrical wiring. The PCM/ECU can’t ensure catalytic converter efficiency if this sensor is not working correctly.
Also, code P2036 indicates high voltage in the circuit. Both codes indicate the same sensor and the repair steps are identical. P2032 is the fault code, but it applies to the bank 1 sensor.
EGT sensors are found in many newer petrol and diesel vehicles. It is made up of a heat-sensitive resistor. It generates a voltage signal according to temperature and transmits the status of the ECU.
There are two types, NTC and PTC. NTC sensors show a decrease in resistance with increasing temperature, while PTC sensors show a rise in resistance with decreasing temperature. PTC sensors, on other hand, react to temperature. The resistance of PTC sensors increases or decreases directly. Each sensor sends a voltage signal to the ECU to indicate the status. The ECU will adjust the engine timing or fuel ratio if it detects low voltage signals. This is to maintain the converter’s temperature at the right setting.
The EGT sensor in diesel vehicles is used to determine DPF (Diesel Particulate filter) regeneration time according to temperature rise.
The ECU will generate the P2035 fault code if the voltage signal from the sensor is below the set voltage for a specified time. This usually takes between 3 to 5 seconds but can vary depending upon the manufacturer.
Why does P2035’s Fault Code light up?
There are several possible reasons that could trigger the P2035 error message.
– Conditions that could strain the EGT sensor (such as carrying heavy loads over a long time)
– Short circuit problems (loose or broken connections, sockets, etc.
– EGT sensor malfunction
– The operating temperature of the catalytic converter should not be below that setting
– PCM/ECU malfunction
– Engine is not operating at the correct operating temperature
– Slow heating the catalytic converter
– Defective catalytic convertor
Symptoms of the Fault Code P2035
Fault code 2035 typically does not show any signs of malfunction. The engine malfunction lamp is the only sign that it is on. Fault code P2035 occurs within the ECU.
How serious is the P2035 Engine Fault code?
The ECU will not be able to manage the catalyst system if it gives fault code P2035. This results in an increase of NOx emissions. It does not impact the vehicle’s driving conditions. It is not dangerous for the driver or passengers.
Possible Causes of and Repairs to P2035 Engine Fault code
To fix the P2035 error code, you can follow these steps.
– Check all error codes first. Then, if other error codes exist, check their relationship to this one. You must first diagnose and fix any other fault codes.
– All exhaust systems should be inspected. If there are loose or rusty wires in sockets, they should be replaced.
– Disconnect the connector and inspect it. Perform the voltage and resistance tests according to the manufacturer’s instructions.
Test drive the car to test the exhaust gas temperature.
Clean the EGT sensor by removing it from the exhaust. An ohmmeter can be used to check the resistance. An EGT sensor made of solid material should resist 150ohm. Replace the sensor if the resistance falls below 50ohm.
– Heat the sensor using a heat gun or hair dryer. An ohmmeter can be used to measure the resistance. As the sensor is heated or cooled, its resistance should change. If the sensor does not respond, replace it.
This code can be solved by simply cancelling the catalytic converter. The catalytic converter can be canceled illegally because it increases exhaust emission levels and causes air pollution. You could face severe penalties if you are caught.
You can reset the code using a 2.2 ohm resistor until the fault is fixed. Take out the EGT sensor, attach the resistor at the motor side connector and wrap it with tape. The ECU will detect that the EGT sensors are working correctly.
