U352A: The high voltage system interlock circuit H gives readings outside the normal
The high voltage system interlock circuit H gives readings outside the normal range. It is usually the part, its wiring or a connector with poor contact.
| Code | U352A |
|---|---|
| System | Communication network |
| Group | U35xx, Communication network |
| Type | Generic: it means the same on every make |
How to read and clear U352A with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see U352A with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- U3526 The high voltage system interlock circuit G gives readings outside the normal
- U3527 The high voltage system interlock circuit G gives a lower signal than normal
- U3528 The high voltage system interlock circuit G gives a higher signal than normal
- U3529 The high voltage system interlock circuit H is not working properly
- U352B The high voltage system interlock circuit H gives a lower signal than normal
- U352C The high voltage system interlock circuit H gives a higher signal than normal
- U352D The high voltage system interlock circuit J is not working properly
- U352E The high voltage system interlock circuit J gives readings outside the normal
What does code U352A mean?
The high voltage system interlock circuit H gives readings outside the normal range. It is usually the part, its wiring or a connector with poor contact.
How do you clear U352A?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, U352A comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
