Get High-voltage Qualification -> Workshop procedures Guide for Volkswagen Touareg SUV Second Generation (2010-2018)

High-voltage Qualification

Workshop procedures

Overview

The following chart shows the workshop process for high-voltage vehicles covering maintenance, complaints

regarding the high-voltage system, work near or on the high-voltage system and damaged vehicles after a minor

or major accident.

Work scope of electrically instructed person (EIP)



Label vehicle with

warning notice

VAS 6649.

Only then: 

ignition 

Necessary to 

de-energise

system? 

HV warning lamp 

in instrument

cluster on?

Ignition 

off

Start

(list can be found in

NO

service systems)

on

YES

lk

Certified de-energisation

Work scope of high-voltage technician

(HVT)



Connect tester,



ignition on,

read out fault memory

of HV components

De-energise 

high-voltage

system

Secure against 

reactivation

YES

NO

Work scope of high-voltage expert

(HVE)

56

th

Key

lk

Assign electrically instructed person (EIP)

Assign high-voltage technician (HVT)

Assign high-voltage expert (HVE)

s499_066



Regular maintenance or repair of

conventional components

(Workshop Manual and 

Guided Fault Finding)

Visual inspection: 

HV components 

and cables in work 

area OK?

End 

YES

Hand over vehicle

to service advisor

(at least EIP).

NO



Replacement or repair of HV

components or lines or work in their

vicinity

(Workshop Manual and 

Guided Fault Finding)

Responsibility remains with HVT



Reactivate the high-



voltage system in

reverse order to de-

energisation

Visual inspection

of HV components

and cables in work

area



End 

De-energisation

Hand over vehicle

to service advisor

(at least EIP).

determined?

YES

NO



Hand over responsibility to high-

voltage technician

Deactivate and

secure high-

voltage system

YES

57

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High-voltage Qualification

Principle of maximum distribution

The prospective high-voltage technicians at the importer take part in qualification courses at the manufacturer. 

After passing the final examination, the HVTs can train their colleagues at importer level to become HVTs. Then all

HVTs at the importer may train the service technicians in retail in their market to become HVTs. Each HVT from

importer to retailer is responsible for training the staff in their department to be EIPs.

The HVT at retailer level does not have authorisation to train any other person to become an HVT. 

This task is fulfilled exclusively by the importer and the manufacturer.

Qualification as high-voltage technician (HVT)

s499_070

Master trainer 

at manufacturer

HVT

Participating service trainer from

importer at the manufacturer

HVT

EIP

lk

Additional trainer from

importer in own market

Service technician/master technician

from retailer in market

HVT

58

th

Qualification as high-voltage expert (HVE)

s499_068

Master trainer 

at manufacturer

HVE

Participating trainer from 

importer or product advisor 

at manufacturer

HVE

lk

Additional trainer from

importer in own market

HVE

Service technician/master technician

from retailer in market

Due to the extensive qualification course with different vehicles and faulty high-voltage components, this

measure takes place only at the manufacturer. Due to the authorisation, this training course is not to be used

exclusively for the trainers from the importers. 

The main focus is on the tar group of product advisors from the importers.

The only prerequisite for this training course is being qualified as a high-voltage technician.

59

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High-voltage Qualification -> Workshop procedures for Your Volkswagen Touareg SUV Second Generation (2010-2018)

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