P2474 moderate
Exhaust Gas Temperature Sensor (Bank 1 Sensor 3) Malfunction
Can I Drive?
Short Distances Only
DIY Difficulty
moderate
Estimated Cost
$100 - $400 (parts and labor)
What does P2474 mean?
The P2474 code means the vehicle's onboard diagnostic system has detected: Exhaust Gas Temperature Sensor (Bank 1 Sensor 3) Malfunction. This is a moderate severity code.
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Common Symptoms
- Check Engine Light on
- DPF regeneration issues
- Reduced engine power
- Exhaust temperature warning
- Fuel economy decrease
Probable Causes (Ranked by Likelihood)
- Failed exhaust gas temperature sensor Very High
- Heat-damaged sensor wiring High
- Soot contamination on sensor Moderate
- ECM sensor circuit fault Low
Step-by-Step Diagnostic Procedure
-
Read EGT sensor data and compare banks
-
Inspect sensor wiring for heat damage
-
Measure sensor resistance
-
Replace sensor if out of specification
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Frequently Asked Questions
What does P2474 mean?
P2474 indicates: Exhaust Gas Temperature Sensor (Bank 1 Sensor 3) Malfunction. The ECM detected an issue that needs diagnosis and repair.
Is P2474 urgent?
This code should be addressed soon to maintain proper engine operation.
What should I check first?
Start with a visual inspection of the sensor wiring and connector. Use a scan tool to read live data. For DPF codes, check soot loading level. For EVAP codes, check the gas cap first.