Exhaust Gas Temperature Sensor Circuit (Bank 2 Sensor 2)
Common Symptoms
- Check engine light illuminated
- Increased fuel consumption
- Reduced engine power or performance
- DPF regeneration issues or failures
- Exhaust system warning messages
- Poor cold start performance
Most Likely Root Causes
- Faulty exhaust gas temperature sensor
- Damaged or corroded sensor wiring harness
- Exhaust leaks near sensor location
- Failed sensor connector or terminals
- ECM software calibration issue
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Component Location
The exhaust gas temperature sensor Bank 2 Sensor 2 is located in the exhaust system downstream of the catalytic converter on the Bank 2 side of the engine.
Manufacturer Notes
Diesel engines with DPF systems may see this code more frequently due to high exhaust temperatures affecting sensor longevity.
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