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Code P2035

Quick reference

P2035 at a glance

Plain-language meaning
This code means that the car's computer is getting a signal that the temperature of the exhaust gases on one side of the engine is lower than expected. It's like a thermometer telling you it's too cold when it shouldn't be.
Urgency
Moderate – It should be addressed soon to prevent potential engine performance issues.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Wrench set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer is getting a signal that the temperature of the exhaust gases on one side of the engine is lower than expected. It's like a thermometer telling you it's too cold when it shouldn't be.

Explanation

The P2035 code is triggered when the powertrain control module (PCM) detects a low voltage signal from the exhaust gas temperature sensor located on bank 2, sensor 2.

Technical description

The exhaust gas temperature sensor measures the temperature of the exhaust gases leaving the engine. This information is used by the PCM to optimize fuel injection and control emissions. Bank 2 refers to the side of the engine with the second cylinder, and sensor 2 is typically located downstream in the exhaust system. A low circuit signal indicates that the sensor is reading a temperature lower than expected, which could be due to a fault in the sensor or its wiring.

Symptoms

• Check Engine Light illuminated

• Poor engine performance

• Increased emissions

Common Causes

• Faulty exhaust gas temperature sensor

• Wiring issues such as short circuits or open circuits

• Poor electrical connection at the sensor

Glossary

PCM: Powertrain Control Module

Exhaust Gas Temperature Sensor: A sensor that measures the temperature of exhaust gases to help control emissions and engine performance.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the exhaust gas temperature sensor and its wiring for damage.

• Check the sensor's electrical connections for corrosion or looseness.

Repair procedures

• Replace the faulty exhaust gas temperature sensor.

• Repair or replace damaged wiring or connectors.

• Clear the code and test drive the vehicle to ensure the issue is resolved.

Tools required

• OBD-II scanner

• Multimeter

• Wrench set

Estimated repair cost

$150 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Dodge Ram

Preventive measures

• Regularly inspect exhaust system components.

• Ensure proper maintenance of vehicle electrical systems.

• Use quality fuel to minimize sensor contamination.

Error code type

Sensor Issue

User experience recommendations

• Address this issue promptly to avoid further engine performance problems.

• Consult a professional mechanic if unsure about the repair process.

Warranty information

Check with your vehicle manufacturer for warranty coverage on emissions-related components.

Historical data

This code has been associated with vehicles that have high mileage or those that operate under extreme conditions.

Urgency level

Moderate – It should be addressed soon to prevent potential engine performance issues.

Testing conditions

• Engine at operating temperature

• Vehicle driven under normal conditions

Component location

The exhaust gas temperature sensor is located in the exhaust system, typically after the catalytic converter on bank 2.

FAQs

Q: What happens if I ignore this code?
A: Ignoring this code can lead to increased emissions and reduced fuel efficiency.

Q: Can I drive my car with this code?
A: While the car may still be drivable, it's recommended to fix the issue to avoid potential engine performance problems.

Optional diagnostic gear

Tools that may help diagnose P2035

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Fitment matters

Commonly referenced parts for P2035

Walker Catalytic Converter product illustration

Fitment Required · Vehicle-fitment part

Walker Catalytic Converter

Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.

Catalyst-efficiency faults sometimes point toward converter problems after proper testing.

Catalytic converters are highly vehicle-specific and should not be purchased by code alone.

View options on Amazon

These parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.

Source: ezOBD2 diagnostic database
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