V9324032073520_2 Service Bulletin/Repair Instructions

OL
V
Diode mode
- to +
0.85 – 0.87
V
ISO@500V
+ to Chassis
>50
MΩ
ISO@500V
- to Chassis
>50
MΩ
Y-Capacitance
+ to Chassis
41 – 58
nF
0.041 – 0.058
µF
41 – 58
nF
0.041 – 0.058
µF
39 – 40
µF
Note: This measurement

is not performed by GFF
VX81 - A/C Compressor

Version: “ID.Buzz” MY25+
Y-Capacitance
Capacitance
- to Chassis
+ to -
Voltage
+ to -
0
V
ISO@250V
+ to -
0.300 – 0.600
MΩ
Diode mode
+ to -
OL
V
- to +
0.80 – 1.20
V
Note: This measurement

is not performed by GFF

Diode mode

Z132 - Heating Element

(PTC) 3 – Water Heater
Note: This measurement

is not performed by GFF
Position: Coolant heater

for HV battery heating
ISO@500V
+ to Chassis
150 – 500
MΩ
ISO@500V
- to Chassis
150 – 500
MΩ
Y-Capacitance
+ to Chassis
19 – 24
nF
0.019 – 0.024
µF
19 – 24
nF
0.019 – 0.024
µF
5–6
µF
OL – 0.01
µF
Y-Capacitance
Capacitance (MY21-22)
- to Chassis
+ to -
Capacitance (MY22+)

Voltage
+ to -
0
V
ISO@250V
+ to -
0.4 – 0.45
MΩ
Diode mode
+ to -
OL
V
Diode mode (MY21-23)
- to +
0.78 – 0.9
V
0.98 – 1.0
V
ZX17 - High-Voltage

Heater (PTC) / Z115 High-Voltage Heater

(PTC)
Diode mode (MY24-25)

ISO@500V
+ to Chassis
>500
MΩ
Position: Front passenger

compartment air heater
ISO@500V
- to Chassis
>500
MΩ
Y-Capacitance
+ to Chassis
0–1
nF
0 – 0.001
µF
0–1
nF
0 – 0.001
µF
0.200 – 1.0
µF
4.0 – 4.4
µF
0
V
Version: ID.4 and ID.Buzz
Y-Capacitance
Capacitance (MY21-23)
- to Chassis
+ to -
Capacitance (MY24-25)

Voltage
+ to -
A19 - Voltage Converter

(DC-DC Converter)

Version: MY21-23 (All) +

MY24-25 (with 62 kWh

battery)

Note: Only used in

vehicles having separate

A19 DC-DC converter

(without DC-DC converter

function integrated with

AX4 onboard charger)
ISO@250V
+ to -
0.5 – 0.55
MΩ
Diode mode
+ to -
OL
V
Diode mode
- to +
0.36 – 0.74
V
ISO@500V
+ to Chassis
>500
MΩ
ISO@500V
- to Chassis
>500
MΩ
Y-Capacitance
+ to Chassis
0–1
nF
0 – 0.001
µF
0–1
nF
0 – 0.001
µF
Y-Capacitance
ZX24 - High-Voltage

Heater 2 (PTC) / Z190 High-Voltage Heater 2

(PTC)

Position: Rear passenger

compartment air heater
- to Chassis
Capacitance
+ to -
4.9 – 5.3
µF
Voltage
+ to -
0
V
ISO@250V
+ to -
1.0 – 1.1
MΩ
Diode mode
+ to -
OL
V
Diode mode
- to +
1.06 – 1.08
V
ISO@500V
+ to Chassis
>500
MΩ
ISO@500V
- to Chassis
>500
MΩ
Y-Capacitance
+ to Chassis
0.26 – 1
nF
0 – 0.001
µF
0.26 – 1
nF
0 – 0.001
µF
Version: ID.Buzz only

Y-Capacitance
TV93 - High-Voltage

Network Wire Junction 9

TV94 - High-Voltage

Network Wire Junction 10

Note: Non-serviceable

fuses from HV traction

harness at branch to rear

passenger compartment

air heater.

Version: ID.Buzz only
- to Chassis
Capacitance
+ to -
0.11 – 0.32
µF
Fuse 1:
+ to +
0 – 0.2
Ω
Traction harness T2ic/1 to
(Continuity)
Rear air heater harness

T2ig/1

Fuse 2:

Traction harness T2ic/2 to

Rear air heater harness

T2ig/2
- to -
0 – 0.2

(Continuity)
Ω
Warranty

Information only.
NOTICE

This technical bulletin describes a detailed GFF-based diagnostic procedure for electrical measurements

of all HV components in the vehicle, of which many outcomes are possible. Following evaluation through a

TAC case, one or more components may be identified for replacement. The labor time for the

measurements performed according to the GFF-based procedure is automatically logged and documented

on the GFF diagnostic log. To determine if this procedure and any subsequent repairs are covered under

warranty, refer to the Warranty Policies and Procedures Manual.
Required Parts and Tools

No Special Parts required.
Tool Description
Tool No*:
VAS Battery Tester/Charger
VAS 5908
VAS Diagnostic Tool
VAS 6150/X & VAS 6160/X with

ODIS Service with current online updates
Test Adapter - Hybrid Module
VAS 6558A
High Voltage Test Adapter
VAS 6558A/35
High Voltage Test Adapter
VAS 6558A/32
High Voltage Test Adapter
VAS 6558A/36A
High Voltage Test Adapter
VAS 6558A/33A
High Voltage Test Adapter
VAS 6558A/37A
Fluke 83-V Multimeter
FLUKE835
or equivalent
* Call Volkswagen Tools and Equipment Program, Snap-On® Business Solutions (SBS at 1-800-892-9650

for product.
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.
© 2025 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.

1 2 3 45

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Last update on 2026-03-27 / Affiliate links / Images from Amazon Product Advertising API

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