P2475 code meaning
Exhaust Gas Temperature Sensor Circuit Low (Bank 2 Sensor 4)
Powertrain system Generic code P24xx codes Check engine light
What P2475 means
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.
P2475 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2475
- MIL on
- Bank 2 probe 4 shows an implausibly cold or fixed value
- Regeneration or DEF dosing restricted
Common causes of P2475
- Most likelySignal wire rubbed through against the exhaust or body
- PossibleProbe shorted internally
- Less likelyWater in the connector bridging the pins
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Egt sensor b2s4Egt wiring
What each part of P2475 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 4 | Area: auxiliary emission controls (catalytic converter, EGR, EVAP). |
| 75 | The exact fault in that area. |
What to do next
- Note P2475 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2475
What does P2475 mean?
P2475 means "Exhaust Gas Temperature Sensor Circuit Low (Bank 2 Sensor 4)". P2475 is stored when the voltage from bank 2 probe 4 falls below the lowest value the probe can produce in normal use. It is a generic code, so it means the same on every make.
Is it safe to drive with P2475?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2475 fail an emissions test?
Yes, it can. P2475 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2475 to fix?
Difficulty: medium. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2475 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.