Exhaust Gas Temperature Sensor Circuit Low (Bank 2 Sensor 2)
Common Symptoms
- Check Engine Light illuminated
- No noticeable drivability issues in most cases
- Reduced fuel economy may occur
- DPF regeneration issues on diesel engines
- Exhaust temperature gauge reading lower than normal
- Possible limp mode on some diesel vehicles
Most Likely Root Causes
- Faulty exhaust gas temperature sensor
- Damaged or corroded wiring harness to EGT sensor
- Poor electrical connection at sensor connector
- Short to ground in EGT sensor circuit
- Failed engine control module
Full step-by-step tests, DVOM guidance, and pinout data are available inside the AI Diesel Tech diagnostic session.
AI walks you through every test — one step at a time. Plans start at $12.95/mo.
Component Location
The Bank 2 Sensor 2 EGT sensor is located in the exhaust system downstream of the catalytic converter or DPF on the cylinder bank opposite Bank 1.
Manufacturer Notes
Some diesel engines with DPF systems use multiple EGT sensors for regeneration control and may set multiple codes when one sensor fails.
Also diagnosing J1939 SPN/FMI codes?
Heavy-duty trucks often throw both OBD-II and J1939 faults simultaneously. AI Diesel Tech handles both protocols in a single guided session.
AI Diesel Tech — The Technician's Diagnostic Engine
AI Diesel Tech diagnostic logic is built by an ASE Certified Diesel Technician. Professional-grade OBD-II and J1939 fault analysis — trusted by technicians nationwide, used in shops, fleets, and training programs.
Get AI-Guided Diagnosis for P2475
The diagnostic engine walks you through every physical test — step by step, on your phone, at the truck.