General Information

Engine Control
U029F Lost Communication with Evaporative Emission System Leak Detection Control Module - General Information

Component Location





General Description

The Evaporative system monitoring is made by using Natural Vacuum Leak Detection (NVLD).
The leak detection is made by using two components.
The "NVLD Sensor module" which incorporates the NVLD pressure switch and temperature sensor.
And the canister purge valve which is used as actuator to create vacuum in the tank when the engine is running.

DTC Description

U029F is set when there is communication message error. (In this case, LIN Line is normal.)

DTC Detecting Condition





Diagnostic Circuit Diagram