P3475 code meaning
Cylinder 10 Deactivation/Intake Valve Control Circuit Low
Powertrain system Generic code P34xx codes Check engine light
What P3475 means
P3475 points to a short to ground on the circuit that controls deactivation or the intake valve of cylinder 10. No manufacturer documents this code publicly; J2012 reserves the codes for cylinders 9 to 12 for engines with more than eight cylinders. The Lamborghini Huracán's V10 runs on five cylinders at light load and the Aventador V12 on six below 135 km/h, yet neither maker publishes code-level diagnostics, and Audi's sister V10 manages without valve actuators. For a sense of the test, GM's eight-cylinder version of the low check needs below 0.5 ohm to ground while the output is off, sampled every 250 ms. Check the wire to cylinder 10 for chafing first, then the actuator itself. P3473 handles an open line, P3476 a short to voltage, P3479 the exhaust counterpart.
P3475 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P3475
- Check engine lamp on
- Reduced-cylinder mode unavailable
- Possible misfire on cylinder 10
Common causes of P3475
- Most likelyCylinder 10 control wire grounded through chafing
- PossibleActuator of cylinder 10 shorted internally
- Less likelyWater in the actuator connector
- Less likelyDefective control module output stage
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Cylinder deactivation solenoidWiring harnessECM
What each part of P3475 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 3 | Mixed range: generic and manufacturer-specific codes. |
| 4 | Area: auxiliary emission controls (catalytic converter, EGR, EVAP). |
| 75 | The exact fault in that area. |
What to do next
- Note P3475 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 P3475
What does P3475 mean?
P3475 means "Cylinder 10 Deactivation/Intake Valve Control Circuit Low". P3475 points to a short to ground on the circuit that controls deactivation or the intake valve of cylinder 10. It is a generic code, so it means the same on every make.
Is it safe to drive with P3475?
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 P3475 fail an emissions test?
Yes, it can. P3475 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 P3475 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P3475 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.