What does code U3536 mean?

Q: What does code U3536 mean?

High Voltage System Interlock Circuit L Performance. U3536 indicates that the high-voltage interlock loop circuit for a specific component, designated L, is reporting a performance fault, typically a voltage reading outside the expected range. The vehicle's control module monitors this safety circuit and sets the code when the signal does not match the factory logic for proper continuity or voltage level.

DTC codes / U35xx · Network communication / U3536

U3536High Voltage System Interlock Circuit L Performance

U3536 indicates that the high-voltage interlock loop circuit for a specific component, designated L, is reporting a performance fault, typically a voltage reading outside the expected range. The vehicle's control module monitors this safety circuit and sets the code when the signal does not match the factory logic for proper continuity or voltage level.

SystemNetwork

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaNetwork communication

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.