Fix P2035: STEP-BY-STEP diagnostic GUIDE!

The P2035: Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2 code indicates that the exhaust gas temperature (EGT) sensor located on Bank 2 (Sensor 2) is reporting a low voltage. This issue could be due to a faulty sensor, wiring problems, or circuit issues affecting the sensor’s performance.

P2035 – Quick Overview

Code	Information
Meaning	P2035: Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2
Is it serious?	Yes, low voltage in the EGT sensor circuit may lead to incorrect exhaust gas temperature readings, which can result in damage to critical components like the catalytic converter or DPF and lead to higher emissions.
Possible causes	– Low voltage in the sensor circuit – Faulty sensor – Wiring or connector issues
How to diagnose?	– Measure voltage in the sensor circuit – Test the sensor – Inspect wiring and connectors

P2035 Meaning

The P2035: Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2 code indicates that the EGT sensor on Bank 2 (typically the side of the engine opposite Bank 1) is reporting lower voltage than expected. This sensor helps monitor and regulate exhaust temperatures to protect components like the catalytic converter and diesel particulate filter (DPF). Low voltage can prevent the sensor from accurately reading exhaust temperatures, leading to potential damage and emissions issues.

Step-by-step diagnostic guide

Action	Description	Tools Needed
Check for Other Codes	Use an OBD-II scanner to check for additional fault codes related to the exhaust system or emissions control system. Other codes may provide more details on the source of the issue.	OBD-II Scanner
Measure Voltage in the Sensor Circuit	Use a multimeter to measure the voltage in the EGT sensor circuit on Bank 2 Sensor 2. Compare the readings to the manufacturer’s specifications to verify if the voltage is indeed too low.	Multimeter
Test the Exhaust Gas Temperature Sensor	Use a diagnostic tool to test the resistance and output of the EGT sensor. If the sensor is faulty, it may not be able to generate accurate temperature readings. Replace the sensor if necessary.	Multimeter, Diagnostic Tool
Inspect Wiring and Connectors	Visually inspect the wiring and connectors leading to the EGT sensor for signs of damage, corrosion, or loose connections that could cause low voltage in the sensor circuit.	Flashlight, Multimeter
Check Circuit Continuity	Perform a continuity test on the wiring connected to the EGT sensor. Look for shorts, breaks, or high resistance in the wiring that could lead to low voltage readings.	Multimeter
Inspect the Exhaust System	Inspect the exhaust system, including the area around the sensor, for any blockages, leaks, or contamination (e.g., soot or carbon buildup) that could affect the sensor’s performance.	Flashlight, Exhaust Cleaner
Replace the Exhaust Gas Temperature Sensor	If the EGT sensor is faulty or providing inaccurate readings, replace it with a new one. Ensure proper installation to prevent further issues.	Replacement EGT Sensor, Wrench
Repair or Replace Damaged Wiring	Repair any damaged or faulty wiring and connectors leading to the sensor. Ensure that all electrical connections are secure and free of corrosion.	Wiring Repair Kit
Clear the Code and Test Drive	After repairs, clear the P2035 code using an OBD-II scanner. Test drive the vehicle to ensure that the sensor is operating correctly and that the code does not return.	OBD-II Scanner, Vehicle Owner’s Manual
Recheck for Codes	After the test drive, re-scan the vehicle to verify that the P2035 code has been resolved and has not reappeared.	OBD-II Scanner