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 thinks the sensor measuring the temperature of the turbocharger or supercharger is reading too high. It's like a thermometer saying it's really hot when it shouldn't be.
The P2B70 code is triggered when the Engine Control Module (ECM) detects a high voltage signal from the turbocharger or supercharger temperature sensor. This indicates that the sensor is reporting a temperature that is higher than expected.
The turbocharger/supercharger temperature sensor monitors the temperature of the air entering the engine after being compressed by the turbocharger or supercharger. A high circuit signal suggests that the sensor is either malfunctioning or that there is an actual increase in temperature due to a mechanical issue.
• Check Engine Light is on
• Reduced engine performance
• Possible overheating warning
• Faulty temperature sensor
• Wiring issues such as shorts or open circuits
• Actual overheating of the turbocharger/supercharger
Turbocharger: A device that increases an engine's efficiency and power output by forcing extra air into the combustion chamber.
Supercharger: A device that increases the pressure or density of air supplied to an internal combustion engine.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors to the temperature sensor
• Test the sensor for proper operation
• Replace the faulty temperature sensor
• Repair or replace damaged wiring
• Check for and resolve any overheating issues
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regular maintenance of the turbocharger/supercharger
• Ensure proper cooling system function
• Inspect wiring regularly
Sensor Issue
• Do not ignore the Check Engine Light
• Have the vehicle inspected by a professional
• Avoid heavy loads or high speeds until repaired
Check with your vehicle manufacturer, as some components may be covered under warranty.
This code has been associated with issues in vehicles with forced induction systems, particularly as they age.
Moderate – It should be addressed soon to avoid potential engine damage.
Ignoring this code can lead to increased emissions and potential engine damage, which may not comply with legal standards.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The temperature sensor is typically located near the turbocharger or supercharger on the intake side.
Q: Can I drive with a P2B70 code?
A: It's not recommended to drive for long periods with this code, as it may indicate overheating that could damage the engine.
Q: How do I reset the P2B70 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
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