V271901201189422

Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
Condition
Applicable Vehicles
Model(s)
All
(except Routan)
Year
Eng. Code
Trans. Code
VIN Range
From
VIN Range To
1998-2023
All
All
All
All
Revision Table
Instance Number
Published Date
Version Number
Reason For Update
2011894/22
12/6/22
27-19-01
To update model year
applicability.
2011894/20
6/8/22
27-19-01
To remove obsolete
testers MCR340 and InCharge 940.
2011894/19
5/16/22
27-19-01
To include information
regarding VAS 6161
usage.
2011894/1
10/6/06
V270603
Original publication.
Note:
This technical bulletin covers testing and repair procedures for multiple vehicle lines, model years and
engine combinations. To prevent mis-diagnosis, you must ensure that the testing/repair procedure is
applicable to the vehicle you are servicing and the correct battery type is entered in the tester.
Tip:
 Make sure software levels on the testing equipment are at their latest levels.
 Enhanced Flooded Battery (EFB) function only available on VAS 6161 and GRX3000VAS.
Page 1 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
Technical Background
The VAS6161 and GRX3000VAS are the only VW approved battery testers and chargers that can be
used to test and charge batteries in VW vehicles. Use of non-approved battery testers and chargers is not
allowed, as internal battery damage may occur.
Note:
GFF is NOT approved to pass/fail the 12volt battery.
Production Solution
No production change required.
Service
WARNING
Danger of injury! Prior to handling or servicing batteries, read, understand and observe all
Warnings and Safety Measures for lead-acid batteries.
Note:
In order to prevent damage to battery or vehicle, observe battery type descriptions and notes.
Tip:
 Switch off all electrical consumers.
 Switch ignition OFF and remove ignition key.
Battery Testing/Charging Sections:
2-1 All Models 1998 - 2022, Except Passat/CC 3.6L, Eos 3.2L, Golf VR4/R32, Touareg and Phaeton
2-2 Passat, Passat Wagon and CC with 3.6L 2006-2013 (Rear Battery)
2-3 Eos 3.2L 2006 - 2008
2-4 Golf VR4/R32 2008
2-5 Touareg 2004 - 2017
2-6 Phaeton 2003 - 2006
2-7 VAS6161, GRX3000VAS Trouble Shooting Error Messages
Page 2 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
2-1 All Models 1998 - 2022, Except Passat/CC 3.6L, Eos 3.2L, Golf VR4/R32, Touareg and Phaeton
When testing or charging a battery either installed or removed from vehicle select appropriate battery
type:
 Select “Standard” (Lead-Acid) function for ALL NON-AGM batteries.
 Select “AGM” function for “Absorbent Glass Mat” (AGM) batteries with “AGM” on battery label.
 Select “EFB” function for “Enhanced Flooded Battery” (EFB) batteries with “EFB” on the battery label.
Tip:
 EFB function only available on VAS6161 and GRX3000.
 Make sure software levels on the testing equipment are at their latest levels.
Always use actual DIN rating as shown on battery label arrow-.
Tip:
Label shown is for example only. DIN or SAE
specifications may vary from battery to battery.
If DIN rating is not shown:
 Use SAE value as printed on the battery label.
If using SAE value rating:
 Midtronics tester menu option must be changed to achieve accurate results.
 A change from DIN to SAE can be made from the “Other” menu option on Midtronics tester.
2-2 Passat Wagon 2006-2010, Passat and CC with 3.6L 2006-2018 (Rear Battery),
Testing/Charging at Battery
Passat Sedan, CC, 3.6L only 2006-2018:
 Select Lead Acid Battery for 3.6L engine (located in left side of trunk). 450 DIN.
B6 Passat Wagon 3.6L only 2006-2010:
 Select Regular or AGM (Absorbed Glass Mat) for 3.6L engine (located in left side of trunk) as
specified on the battery label. 480-520 DIN AGM.
Page 3 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
When testing or charging battery installed in vehicle:
 DO NOT Test/Charge from Remote Location.
 (3.6L) DO NOT use remote location (+) -arrow-.
 (3.6L) DO NOT use engine bracket (-) -arrow-.
Always use actual DIN rating as shown on battery label:
 (3.6L) Test/charge battery located in left rear trunk arrow-.
 Passat Sedan / Passat CC 3.6L uses a lead acid
battery 450 DIN.
 B6 Passat Wagon 3.6L uses an AGM battery. 480 or
520 DIN.
Page 4 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
2-3 Eos 3.2L 2006 - 2008
Testing/Charging at Battery (Two 6-Volt batteries)
Eos 3.2L engine is equipped with two 6-volt AGM batteries which are connected in series to achieve
12-volts. The battery system must always be treated as a 12-volt battery system. Never attempt to charge
only one 6-volt battery. If battery replacement is necessary, never replace one 6-volt battery; both
batteries must be replaced as a pair!
 Eos 3.2L AGM batteries shown are connected in
series.
Testing/Charging 6-Volt Batteries Out of Vehicle:
If batteries have been removed from vehicle, never attempt to test/charge one 6-volt battery; as stated
above. Treat batteries as a 12-volt system.
 Connect cable (Part No: 1Q0971226) to inner battery
terminals.
Page 5 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
 Connect battery tester.
Tip:
Cable has (+) and (–) stamps on each terminal. Positive (+) terminal is a larger diameter than Negative (–
) terminal. DO NOT attempt to force the wrong terminal of harness onto a battery terminal if it does not fit.
1. Connect cable with positive (+) stamp to inner positive (+) terminal of 1st battery. When doing so,
ensure that the other end of the cable (negative) does not make contact with ground or any object.
Tighten to 6Nm.
2. Connect the negative (–) terminal of the cable to the inner negative (–) terminal of the 2nd battery.
Tighten to 6Nm (53 in. lbs).
3. Connect Midtronics tester positive (+) clamp (red color) to outer positive (+) terminal of 2nd battery.
4. Connect Midtronics tester negative (–) clamp (black color) to outer negative (–) terminal of 1st battery.
When testing/charging is completed:
1. Remove Midtronics tester negative (–) clamp (black color).
2. Remove Midtronics tester positive (+) clamp (red color).
3. Remove battery cable negative (–) connection at 2nd battery negative (–) terminal.
4. Remove battery cable positive (+) connection at 1st battery positive (+) terminal.
Testing/charging 6-Volt Batteries in Vehicle:
Page 6 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
GRX3000VAS
1. Connect Midtronics tester positive (+) clamp (red
color) to outer positive (+) terminal of battery.
2. Connect Midtronics tester negative (–) clamp (black
color) to outer negative (–) terminal of other battery.
VAS6161
1. Connect Midtronics tester positive (+) clamp (red
color) to outer positive (+) terminal of battery.
2. Connect Midtronics tester negative (–) clamp (black
color) to outer negative (–) terminal of other battery.
Testing/Charging In or Out of Vehicle:
Always verify using DIN rating as shown on battery label.
 Select AGM for 3.2L engine (located in the trunk, one 6-volt battery on each side of the ski-chute). 380
DIN.
Tip:
Label shown is for example only. DIN or SAE
specifications may vary from battery to battery.
Tip:
Two 6-volt batteries are connected in series to achieve 12-volts, the same current value will flow through
each battery. As a result, only use a DIN value of 380A, DO NOT double or halve this value when
entering data into Midtronics tester.
Page 7 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
If DIN rating is not shown:
 Use SAE value as printed on battery label.
If using SAE value rating:
 Midtronics tester menu option must be changed to achieve accurate results.
 A change from DIN to SAE can be made from the “Other” menu option on Midtronics tester.
When testing or charging battery installed in vehicle:
 DO NOT Test/Charge from Remote Location (3.2L).
 (3.2L) DO NOT use remote location (+) -arrow-.
 (3.2L) DO NOT use engine bracket (-) -arrow-.
Page 8 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
 (3.2L) Test/charge AGM battery located in trunk - one
6V battery located on each side of ski chute, as
shown.
2-4 Golf VR4/R32 2008
Testing/Charging at Battery
When testing or charging battery either installed or removed from vehicle:
 Select Standard (Lead-Acid) battery. Located in right trunk area under spare tire and tool kit.
 Always use actual DIN rating from battery label.
When testing or charging battery installed in vehicle:
 DO NOT Test/Charge from Remote Location (3.2L).
 (3.2L) DO NOT use remote location (+) -arrow-.
Page 9 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
 (3.2L) DO NOT use engine bracket (-) -arrow-.
Always use actual DIN rating from battery label.
 (3.2L) Test/charge (Lead Acid) battery located in the
trunk.
2-5 Touareg 2004 – 2017
Testing/Charging at Battery
Single System – 3.0L (TFSI), 3.0L (TDI), 3.2L, 3.6L, and 4.2L Engines.
2.51 Start/Accessory battery
Always use actual DIN rating as shown on battery label.
Select Standard (Lead-Acid) for 3.0L TFSI 3.0 TDI, 3.6L,
and 4.2L engines (Battery located under driver's seat).
Tip:
MY 2003-2010 3.2L, 3.6L, 4.2L (450DIN)
MY 2004-2008 5.0L TDI (520DIN)
MY 2009-2016 3.0L TDI (520DIN)
MY 2011-2017 3.6L (520DIN)
MY 2011-2015 3.0L TFSI Hybrid (420DIN)
Page 10 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
Dual System – 5.0L (TDI) Engine (2004-2008)
Accessory battery
Select Standard (Lead Acid) for 5.0L (TDI) (located
under the driver seat). 520 DIN
Starter battery
For 5.0L (TDI) engine (battery in trunk without rim). AGM
520 DIN (PR J2R).
For 5.0L (TDI) engine (battery in trunk located under
spare tire). Standard (Lead Acid) 450 DIN (PR J2Q).
Note:
Starter battery must be checked independently of
accessory battery.
Starter battery cannot be tested or charged via the
remote location in engine compartment. To test or
charge starter battery, go directly to battery terminals.
Always use actual DIN rating as shown on battery label arrow-.
Tip:
Label shown is for example only. DIN or SAE
specifications may vary from battery to battery.
If DIN rating is not shown:
 Use SAE value as printed on battery label
 If using SAE value rating:
 The Midtronics tester menu option must be changed to achieve accurate results.
Page 11 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
 A change from DIN to SAE can be made from the “Other” menu option on Midtronics tester.
Testing/Charging from Remote Location (Reduced DIN Rating Requirement)
When using remote location terminals -arrows-, located
in engine compartment, always reduce DIN rating on
VAS6161 and GRX3000VAS testers.
 3.6L, and 4.2L engines: 270 DIN.
 3.0L TDI, 5.0L (TDI) engine: 295 DIN.
 MY2011-2017 3.6L engine: 295DIN
Note:
For 5.0L (TDI) engine (dual battery system), starter
battery cannot be tested or charged via remote location
in engine compartment. To test or charge starter
battery, go directly to battery terminals.
Tip:
Use of these reduced DIN ratings are required to compensate for the internal battery manager and/or the
extended length of cable due to battery location.
2-6 Phaeton 2003 - 2006
Testing/Charging at Battery
When testing or charging battery either installed or removed from vehicle:
 Select Standard (Lead-Acid) for 4.2L and 6.0L engines (located in right front trunk).
 Select AGM (Absorbed Glass Mat) for 4.2L and 6.0L engines (located in left side trunk).
Always use actual DIN rating as shown on battery label arrow-.
Tip:
Label shown is for example only. DIN or SAE
specifications may vary from battery to battery.
Page 12 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
If DIN rating is not shown:
 Use SAE value as printed on battery label.
If using SAE value rating:
 Midtronics tester menu option must be changed to achieve accurate results.
 A change from DIN to SAE can be made from the “Other” menu option on Midtronics tester.
Dual System
Starter battery
Always use actual DIN rating as shown on battery label.
 Starter battery (Standard) located in right side trunk,
as shown: 330 DIN.
On-board accessory battery
Always use actual DIN rating as shown on battery label.
 (AGM) On-board accessory battery located in left
side trunk, as shown: 480 DIN or 520 DIN.
When testing or charging battery installed in vehicle:
 DO NOT Test/Charge from remote location
Page 13 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
 DO NOT use remote location (+) or (-), -arrows-, as
shown.
 Test/charge batteries directly, located in trunk.
Tip:
There is a plastic sleeve on remote location (-), arrow-.
Warranty Battery Test Types and Description for the VAS 6161
Inventory Test: Use this test mode only for vehicles in dealer inventory before the customer warranty
start date.
Warranty Test: Use this test mode only for vehicles under the current customer vehicle warranty. VIN
number input and battery information is a mandatory input for proper claim submittal. Always provide the
battery test code for all battery warranty claims.
Service Test: This test IS NOT to be used for any warranty battery testing. It is designed for out of
warranty battery testing only and for customer pay maintenance.
Note: For PDI vehicles, use only the GRX3000VAS for testing as per the PDI check list and the
‘Ready Set Go’ documents on ServiceNet.
2-7 VAS6161 and GRX3000VAS Trouble Shooting Error Messages
VAS6161 and GRX3000VAS Displays "System Noise" at Beginning of Test
VAS6161 and GRX3000VAS may display "System Noise" at beginning of battery test when testing
directly at battery.
This is an infrequent and a normal message which may be caused by:
 Ignition left in "ON" position.
 Accessories or loads turned ON, with key in "ON" position.
 Loads running with ignition switched "OFF" such as: cooling fan or after-run coolant pump.
 Aftermarket equipment (due to improper installation), such as entertainment, security, remote starters,
televisions, lighting, etc.).
Page 14 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
This may be overcome by verifying:
 Ignition is switched "OFF".
 All loads (cooling fan or after-run coolant pump) are OFF prior to testing.
 Any aftermarket equipment is disconnected from vehicle's electrical system.
Wait a few minutes, and then retest battery again.
Battery Testing Results: Midtronics VAS6161 Analyzer vs. GRX3000VAS Charging Station
In some cases, when testing a battery using the VAS6161 tester:
Test results may be “Good Battery - Recharge”.
However, when attempting to charge the same battery with GRX3000VAS Charger:
Results may be to “Replace Battery” either after testing or during charging process.
Tip:
This is normal since VAS6161 and GRX3000VAS use a conductance test, but the GRX3000VAS also
incorporates use of a 150A load test and ”sophisticated” charging algorithm which monitors charging
state of the battery.
In this case, results of GRX3000VAS should always be used instead of VAS6161.
Testing/Charging: GRX3000VAS Charging Station -Automatic ModeWhen using GRX3000VAS Battery Charging Station in “Automatic Mode”, and testing or charging a
deeply discharged battery:
GRX3000VAS may continuously display a message “Are clamps connected?”
In order to test battery:
 Manually charge battery for 30 minutes and perform test again.
Testing/Charging: GRX3000VAS Charging Station -Manual ModeWhen using GRX3000VAS Battery Charging Station in “Manual Mode”, and testing or charging a deeply
discharged battery:
GRX3000VAS may display a message “Are clamps connected?” twice.
This is not a result of defective GRX3000VAS test equipment, but is a safety feature of the GRX3000VAS
to ensure cables are connected to battery before power is turned ON.
GRX3000VAS Charging Station Always Displays “Check Connections”
GRX3000VAS may constantly display a message to “Check Connections” after cables are connected to
battery terminals.
This is most likely due to the sensing probe making contact with the clamp.
Page 15 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
Tip:
There is one sensing probe on each clamp, (+) and (-), make sure to check both!
 There must be no contact between the inside
connection and outside jaw of clamp -arrows-.
 Inside connection is bent and touching outside of the
clamp, -arrows-.
If clamp is incorrect:
 Use a small flat tool and gently bend sensing probe so it does not make contact with clamp.
If this does not resolve the issue:
 Contact Midtronics Corporation Customer Service Department at 1-800-776-1995 for assistance.
Page 16 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Transaction
No:
2011894/22
Release date:
12/6/2022
Technical Service Bulletin
27-19-01 - Battery Testing and Charging Using Midtronics VAS6161
and or GRX3000VAS Charger
Warranty
Information only.
Required Parts and Tools
Information only.
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.
Page 17 of 17
© 2021 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.