P242D 2016 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 3 Circuit High Voltage
Quick Answer
The Exhaust Gas Temperature sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 3, Exhaust Gas Temperature Sensor 3 harness is open or shorted, Exhaust Gas Temperature Sensor 3 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P242D 2016 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 3 Circuit High Voltage.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 3, Exhaust Gas Temperature Sensor 3 harness is open or shorted, Exhaust Gas Temperature Sensor 3 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P242D 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P242D 2016 Chevrolet Silverado?
- Faulty Exhaust Gas Temperature Sensor (EGTS) 3
- Exhaust Gas Temperature Sensor 3 harness is open or shorted
- Exhaust Gas Temperature Sensor 3 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P242D 2016 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P242D 2016 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P242D 2016 Chevrolet Silverado Code
What does the OBDII code P242D mean for a 2016 Chevrolet Silverado?
P242D indicates a high voltage issue in the Exhaust Gas Temperature (EGT) Sensor 3 Circuit, which monitors exhaust gas temperatures to optimize emissions and engine performance.
What are the symptoms of code P242D in a 2016 Chevrolet Silverado?
Common symptoms include an illuminated Check Engine Light, poor fuel economy, reduced engine performance, or the vehicle entering limp mode.
What causes the P242D code on a 2016 Chevrolet Silverado?
Possible causes include a faulty EGT sensor, damaged wiring or connectors, excessive soot buildup in the exhaust, or issues with the vehicle’s powertrain control module (PCM).
Can I drive my 2016 Chevrolet Silverado with a P242D code?
While the vehicle may still be drivable, continued operation could lead to damage to the emissions system or engine if the underlying issue isn’t addressed.
How do you diagnose the P242D code on a 2016 Chevrolet Silverado?
Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the EGT sensor and wiring, testing the sensor’s resistance, and checking for exhaust system issues.
How do you fix the P242D code on a 2016 Chevrolet Silverado?
Repairs may include replacing the faulty EGT sensor, repairing damaged wiring or connectors, cleaning the exhaust system, or updating/reprogramming the PCM if necessary.
How much does it cost to fix a P242D code on a 2016 Chevrolet Silverado?
Costs can vary, but replacing an EGT sensor typically ranges from $150 to $300, including parts and labor. Additional repairs could increase the total cost.
Can a faulty EGT sensor affect fuel economy on a 2016 Chevrolet Silverado?
Yes, a malfunctioning EGT sensor can cause improper fuel-air mixture adjustments, leading to decreased fuel efficiency.
What tools are needed to diagnose a P242D code on a 2016 Chevrolet Silverado?
You’ll need an OBDII scanner, a multimeter to test sensor resistance, and basic tools for inspecting and replacing the sensor or repairing wiring.
Is the P242D code covered under warranty for a 2016 Chevrolet Silverado?
It may be covered under the vehicle’s emissions warranty, depending on mileage and the specific terms of your warranty. Consult your dealership for details.
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