P2473 Code - Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
Quick Answer
The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 4, Exhaust Gas Temperature Sensor Bank 2 Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 Sensor 4 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P2473 indicates Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 4, Exhaust Gas Temperature Sensor Bank 2 Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 Sensor 4 circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P2473 Description
What are the Possible Causes of the DTC P2473?
- Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 4
- Exhaust Gas Temperature Sensor Bank 2 Sensor 4 harness is open or shorted
- Exhaust Gas Temperature Sensor Bank 2 Sensor 4 circuit poor electrical connection
- Exhaust leaks
- Excessive particulate matter buildup on sensor
How to Fix the DTC P2473?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2473 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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Information for Specific Makes
- P2473 Chevrolet — Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
- P2473 Dodge — Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
- P2473 Ford — Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
- P2473 GMC — Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
Frequently Asked Questions about P2473 Code
What does the OBDII code P2473 mean?
P2473 indicates an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2 Sensor 4, typically signaling a fault in the sensor's circuit or its readings.
What are common symptoms of code P2473?
Symptoms may include an illuminated check engine light, increased exhaust emissions, poor fuel efficiency, reduced engine performance, or the vehicle entering limp mode.
What causes code P2473 to appear?
Common causes include a faulty EGT sensor, damaged wiring or connectors, short circuits, corrosion, or issues with the vehicle's PCM (Powertrain Control Module).
Can I drive with code P2473 active?
While the vehicle may still be drivable, operating it with this code active can lead to increased emissions, reduced fuel efficiency, and potential damage to other exhaust components.
How do I fix code P2473?
Repairs may involve inspecting and repairing wiring or connectors, replacing the faulty EGT sensor, or addressing issues with the PCM if necessary.
How do I locate Bank 2 Sensor 4?
Bank 2 refers to the side of the engine opposite Bank 1 (usually the side without cylinder 1), and Sensor 4 is typically the sensor located furthest downstream in the exhaust system.
How do I diagnose code P2473?
Diagnosing involves scanning for additional codes, visually inspecting the EGT sensor and wiring, testing the sensor’s resistance, and checking for proper voltage and ground signals.
Can a bad EGT sensor cause engine damage?
A malfunctioning EGT sensor may not directly cause engine damage, but it can lead to improper exhaust gas monitoring, potentially harming components like the catalytic converter or turbocharger.
How much does it cost to fix code P2473?
Repair costs can vary depending on the vehicle and the specific issue but typically range from $100 to $300 for sensor replacement, plus labor costs.
Can a software update fix code P2473?
In some cases, a PCM software update from the manufacturer may resolve the issue, especially if the problem is related to incorrect sensor calibration or logic errors.
Discuss the causes and fixes for P2473 OBDII Code
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