Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is getting a low reading from a sensor that measures how hot the exhaust gases are. It's like a thermometer for the car's exhaust, and it's saying the temperature is too low.
The P2470 code is triggered when the Engine Control Module (ECM) detects a low voltage signal from the exhaust gas temperature sensor on bank 1, sensor 4.
The exhaust gas temperature sensor is used to monitor the temperature of the exhaust gases leaving the engine. This information is crucial for controlling emissions and ensuring the catalytic converter operates efficiently. A low circuit condition indicates that the voltage signal from the sensor is below the expected range, which could be due to a faulty sensor, wiring issues, or a problem with the ECM.
• Check Engine Light is on
• Poor fuel economy
• Increased emissions
• Faulty exhaust gas temperature sensor
• Wiring issues such as short circuits or open circuits
• Faulty Engine Control Module (ECM)
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the exhaust gas temperature sensor for proper operation.
• Replace the faulty exhaust gas temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram 1500
• Regular maintenance checks
• Ensure sensors are clean and free of debris
• Check wiring for wear and tear
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if you're unsure about the repairs.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code has been associated with exhaust temperature sensor failures, particularly in vehicles with higher mileage.
Moderate – While the vehicle may still be drivable, it's important to address this issue to avoid potential damage to the catalytic converter.
Ignoring emissions-related codes can lead to increased emissions, which may not comply with local environmental laws.
• Engine at operating temperature
• Vehicle in closed-loop operation
The exhaust gas temperature sensor is typically located in the exhaust system, near the catalytic converter on bank 1.
Q: Can I drive with a P2470 code?
A: While the vehicle may still be drivable, it's best to address the issue to prevent further damage.
Q: How do I reset the Check Engine Light after fixing the issue?
A: An OBD-II scanner can be used to clear the code after repairs are completed.
High-End · Full-system diagnostics
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
Universal · Digital multimeter
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
Universal · Wire connectors and 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 AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.
Fitment Required · Vehicle-fitment part
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 AmazonThese 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.