When designing the harness function, the manufacturer has done a maximum of harness safety design.
The measures taken are:
(1) Full-time power management module.
(2) Main level fuse box.
(3) Secondary branch relays and fuses.
(4) set the current inspection monitoring program.
(5) Increase the flame retardant value of the insulation layer of the line.
(6) The control switch is set at ground. These measures basically ensure the normal operation of the line. If there is no artificial rupture of insulation and accident damage, the harness can be safely operated for more than fifteen years.
In order to reduce the maintenance burden, Volkswagen provides users with fragile connectors for all vehicle models from the accessories channel.
In order to control the cost, the manufacturer strictly controls the single-wire conductive cross-sectional area according to the voltage and current of the power unit.