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

High-voltage Qualification

Basic remarks

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•

Nobody may perform any work on a high-voltage vehicle without the right high-voltage-specific qualifications

and tools.

All Volkswagen workshops worldwide must train their staff to electrically instructed person (EIP) level as a

minimum.

The latest service literature provides a list of which operations require deactivation of the high-voltage system in

specific high-voltage vehicles.

There are numerous repair operations that can be carried out on a high-voltage vehicle that do not require

certified de-energisation of the high-voltage system. These repairs can generally be carried out by an EIP.

All employees at the service partner who come into or could come into contact with high-voltage

vehicles need to be qualified at least as an “electrically instructed person” (EIP). 

Only high-voltage technicians (HVT) are allowed to work on the deactivated high-voltage system.

Requirements for personnel

All prospective high-voltage technicians need to have basic electrotechnical knowledge.

In Germany (requirements in other countries depend on national legislation), persons with the following

professions have the corresponding training, for example:

•

Motor vehicle mechanics, electricians and mechatronics technicians who began and completed their

apprenticeship after 1973.

Motor vehicle body and vehicle construction mechanics or mechanics for body maintenance who began and

completed their apprenticeship after 2002.

Individuals who can prove that they have completed the appropriate additional training to become a motor

vehicle service technician, master technician or engineer.

The aforementioned requirements may vary from country to country.

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The three pillars of qualification

Among the persons authorised to work on high-voltage vehicles, distinctions are made according to their particular

high-voltage qualifications.

-

Electrically instructed person (EIP)

High-voltage technician (HVT) and

High-voltage expert (HVE).

Electrically instructed person (EIP) - High-voltage technician (HVT) -

High-voltage expert (HVE) -

importer

retail

Qualification:

-

No prior training;

-

Basic principles of electrical

engineering required

2 days of high-voltage

technology

-

HVT required

Making employee aware of the

issues involved;

3 days of face-to-face training

-

90 minutes on vehicle

EIP instruction from Volkswagen

Training Online (VTO) 

1 day of high-voltage product

technology

Authorisation:

Like EIP

Authorisation:

- Like HVT

-

The EIP is permitted to carry out

general repairs on vehicles and

mechanical operations on the

disconnected high-voltage system

that have been ordered by the

high-voltage technician (HVT).

-

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In addition the HVT may:

In addition the HVE may:

-

Deactivate the high-voltage

-

Deactivate and secure high-

voltage systems using all

available means.

system.

-

Secure against reactivation.

Determine system de-

energisation.

-

Instruct EIPs on repair operations

on the deactivated high-voltage

system.

Put the vehicle back into

operation. 

The individual qualification routes are explained over the following pages.

99.9% of all operations on a high-voltage vehicle can be carried out by the EIP and HVT. 

These two groups of persons must be qualified at the retailers.

In the special case that the high-voltage technician cannot perform certified de-energisation or cannot verify it with

the measuring methods and measuring tools available to him, the importer will dispatch a high-voltage expert

(HVE).

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High-voltage Qualification

Electrically instructed person (EIP)

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Prior training

Prior training is not required for qualification as EIP.

Qualification

An EIP is made aware of the issues and thus qualified in the EIP safety course by a high-voltage technician for

about 90 minutes on the specific high-voltage vehicle.

The EIP safety course is produced for each individual high-voltage vehicle and published via Volkswagen Training

Online (VTO) in different languages.

The course is given by the high-voltage technicians for the specific high-voltage vehicles.

Authorisation

The course serves to make the employee aware of the issues involved with the high-voltage system.

The EIP is permitted to carry out general repairs on vehicles and mechanical operations on the disconnected high-

voltage system that have been ordered by the high-voltage technician (HVT).

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High-voltage technician (HVT)

International qualification

-

Successful completion of training module “Diagnosis VAS 505X” or comparable knowledge

Successful completion of training module “Fundamentals of electrics” or comparable knowledge

Successful completion of training module “Systematic fault finding – Electrical system” or comparable

knowledge

-

Successful completion of training module “Power supply and starting systems” or comparable knowledge

Self-study programme 450 “The Touareg Hybrid”

Self-study programme 499 “Basics of Electric Drives in Automobiles”

Multimedia Training “Electrics 1”, “Electrics 2” and “Electrics 3”

Establishing initial requirements by the importer.

Entry test for electrotechnical basics [multiple choice]

(80% correct answers).

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-

Participation in two-day face-to-face training.

Final test with 60 questions 

(50% correct answers)

-

After passing test: certificate for Volkswagen high-voltage technician.

Training for the specific product technology of a new high-voltage vehicle: 1 day.

In future, a separate “Product technology” qualification course lasting approx. one day will be

offered for each new high-voltage vehicle. 

The high-voltage technician is responsible for always keeping himself up to date on the latest

technology. Participation in the high-voltage vehicle-specific training courses is required.

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High-voltage Qualification

Obtaining the qualification

Self-qualification for electrical basics

Duration 1 day

End of training

Total length of training course = 1+2+1 days = 4

days

Entry test

Content on product technology for specific 

high-voltage vehicle:

High-voltage safety content:

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-

Professional responsibility

First aid

-

High-voltage system

Diagnosis, test reports

Tools

De-energising system

Duration 2 days

Duration about 1 day

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Final examination

Followed by

Volkswagen high-voltage technician (HVT)

(certificate)

Technical responsibility of high-voltage technician

The HVT is responsible for ensuring that all employees at the dealership or at the importer who come into contact

or could come into contact with the high-voltage vehicle are qualified at least as an electrically instructed person

(EIP). This qualification is specific to the high-voltage vehicle and needs to be taken again for each new high-

voltage vehicle. The current documents are available from Volkswagen Training Online (VTO).

The EIP and HVT qualifications cover 99.9% of all realistic cases in work on high-voltage vehicles.

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High-voltage experts (HVE)

If the high-voltage system of a vehicle cannot be certified de-energised by the high-voltage technician (HVT) using

the measuring methods and measuring tools prescribed by the manufacturer, the authorisation of the high-voltage

technician to work on this high-voltage vehicle will be rescinded.

The high-voltage technician must notify the importer. The importer must then send a high-voltage expert (HVE) or

recover the vehicle.

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Prior training

The prerequisite for the qualification as high-voltage expert (HVE) is high-voltage technician (HVT).

Qualification

3-day technical training

The training course is held exclusively at the manufacturer.

Content:

-

Professional responsibility of HVE

Knowledge and practical exercises for determining/assessing the high-voltage potential

Protective measures against electrical currents.

Practical exercise for securing a faulty high-voltage system

Removal of high-voltage batteries from selected high-voltage vehicles

Storage of the damaged high-voltage battery

Use of 1000-volt safe tools during training course and practical exercises

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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

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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)

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Key

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Assign electrically instructed person (EIP)

Assign high-voltage technician (HVT)

Assign high-voltage expert (HVE)

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

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

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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)

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Master trainer 

at manufacturer

HVT

Participating service trainer from

importer at the manufacturer

HVT

EIP

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Additional trainer from

importer in own market

Service technician/master technician

from retailer in market

HVT

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Qualification as high-voltage expert (HVE)

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Master trainer 

at manufacturer

HVE

Participating trainer from 

importer or product advisor 

at manufacturer

HVE

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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.

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

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