P2475Exhaust Gas Temperature Sensor Circuit Low (Bank 2 Sensor 4)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2475 is stored when the voltage from bank 2 probe 4 falls below the lowest value the probe can produce in normal use. With the resistive PTC probes common on diesels this points to a short between signal and ground, or to a sensor shorted internally. Published thresholds exist only for the bank 1 twin P2470: Ford's diesels treat less than 0.10 V as a fault after about 2 s with the key on, and GM's diesel tables test the probe input for a grounded condition as a Type B fault. No maker lists P2475 itself. The value of this probe is then replaced by a default, so the controller may restrict regeneration or reductant dosing until the repair.
- What you may notice
- MIL on
- Bank 2 probe 4 shows an implausibly cold or fixed value
- Regeneration or DEF dosing restricted
- Likely causes
- LikelySignal wire rubbed through against the exhaust or body
- PossibleProbe shorted internally
- RareWater in the connector bridging the pins
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.