Improper failsafe control program in VSA
Description of the defect
In the vehicle behaviour stabilisation control system (VSA), due to an inappropriate fail-safe control programme, when the electronic braking transmission (ESB system) malfunctions, the fail-safe function that applies braking force according to the brake pedal force does not work and the brake pedal operating force increases.
Improvement Description
The fail-safe control programme for the VSA modulator will be replaced with a countermeasure programme.
Chassis number of target vehicles
VEZEL
RU3-1200021～RU3-1214074
RU4-1200009～RU4-1203482
Automotive maintenance cannot determine the cause based on symptoms alone.
Be sure to perform diagnosis and inspection before determining the cause of the failure.
