NHTSA ID Number: 10171681
Manufacturer Communication Number: TJ33617.2.0-2020
TSB/Document Date: 2020-02-24
Summary
This is a Technical Journal: Front seat heater, function control. If not working check the heating grid wiring.
VOLVO
CAR
SERVICE AND PARTS BUSINESS
Technical Journal
TITLE:
Front seat heater, function control
REF NO:
ISSUING DEPARTMENT:
CAR MARKET:
TJ 33617.2.0
Technical Service
United States and Canada
PARTNER:
ISSUE DATE:
STATUS DATE:
3 US 7510 Volvo Car USA
2020-01-03
2020-01-07
FUNC GROUP:
FUNC DESC:
8527
Electrical heating
Page 1 of 8
“Right first time in Time”
Attachment
File Name
TJ 33617.pdf
File Size
2.2159 MB
Vehicle Type
Type
Eng
Eng
Desc
Sales
Body
Gear
Steer
224
225
227
234
235
236
238
246
256
Model Year
Plant
2019-9999
2019-9999
2019-9999
2017-9999
2017-9999
2017-9999
2018-9999
2018-9999
2016-9999
Chassis range
0000001-9999999
0000001-0999999
0000001-0999999
0000350-0999999
0000160-0999999
0000098-0999999
0000161-0999999
0000389-0999999
0000561-0999999
Struc Week
Range
201835-999952
201838-999952
201846-999952
201617-999952
201624-999952
201646-999952
201646-999952
201717-999952
201505-999952
CSC Customer Symptom Codes
Code
UW
Description
Front seat/Seat heating does not work or too hot
VST Operation Number
VST Operation Number
98714-2
Description
Heater pad front seat fault trace acc. to TJ33617
Produced in the USA and available as an electronic document. Hard copy documents are printed in USA on recycled paper containing
a minimum of 50% wastepaper and 10% post-consumer waste.
© 2020 VOLVO CAR USA, LLC
Technical Journal 33617.2.0
DTC Diagnostic Trouble Codes
Rows beginning with * are modified
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
Text
DESCRIPTION:
* Method and text in this TJ are reworked.
If front seat heating does not work, check seat heating elements by measuring according to instruction
under Service.
We can see from controls of replaced heating elements, that many are replaced even though they are not
broken.
Note! If there is any DTC set indicating LIN communication issue between CCM and SHM, then fault
trace that first. Fault trace according to VIDA.
SERVICE:
Measure according to attached instruction.
When measuring the heating elements according to the instruction the measurement values shall be read
when the voltage feed is on.
On an OK car the voltage is approx 5V (approx 4.7-5V), it varies with the battery voltage (Ubat).
Description how SHM operates:
The seat heating is operated by SHM switching on and off the voltage feed to cushion and backrest
heating elements, which are connected in series.
The switching intensity is approx. a few times per 2 minutes.
The dutycycle between how long time the voltage feed is on vs off varies depending on the seat
temperature and temp setting.
When seat is cold the voltage feed is longer time turned on than off.
When seat is warm the voltage feed is longer time turned off than on.
Warranty claim info:
To get warranty claim accepted for a job described in this TJ, please use the attached VST OP number.
VEHICLE REPORT:
Yes, please submit a Vehicle Report if the service solution described in this TJ has no effect. Use
concern area “Vehicle Report” and sub concern area “Support not needed”, use function group 8527.
To view TJ attachment continue to next page. This TJ has one attachment.
Page 2 of 8
2020-01-07
Volvo Car Customer Service
Title
Front seat heater
Action
Issue
1
Product fix
Date
2018-06
Reason
First issue
Affected vehicles
Model year Model
2017
S90 (17-)
2018,
2019
S90L
2017, 2018,
2019
2017, 2018,
2019
2018, 2019
2016, 2017,
2018, 2019
V90 (17-)
V90 Cross Country
XC60 (18-)
XC90 (16-)
Description
MULTIMETER (DIGITAL)
Special tools
Part No.
951 0060
TJ Instruction VCC-512761-1
Page
1(6)
Operation number:
98714-2
TJ Instruction VCC-512761-1
Page 2 ( 6 )
Removal
Color symbols
Note! This colour chart displays (in colour
print and electronic version) the importance
of the different colours used in the images
of the method steps.
1 . Used for focused component, the
component with which you will do
something.
2 . Used as extra colors when you need to show
or differentiate additional parts.
3 . Used for attachments that are to be
removed/installed. May be screws, clips,
connectors, etc.
4 . Used when the component is not fully
removed from the vehicle but only hung to
the side.
5 . Used for standard tools and special tools.
6 . Used as background color for vehicle
components.
TJ Instruction VCC-512761-1
Page 3 ( 6 )
Caution! Make sure that the connector is
connected.
Note! Orientation view
Note! The appearance of connectors may vary
depending on the vehicle equipment level.
However the colours of the cables,always
match.
TJ Instruction VCC-512761-1
Page 4 ( 6 )
Check
Check the voltage. Start the engine
Special Tool: T9510060, MULTIMETER
(DIGITAL)
Check the value.
YE = Yellow
BU = Blue
If the measurement results give normal values,
continue to the section Checks, below.
Check
Disconnect the connector.
TJ Instruction VCC-512761-1
Page 5 ( 6 )
Check the control unit.
Special Tool: T9510060, MULTIMETER
(DIGITAL)
Set multimeter for diode measurement.
Connect red probe to the terminals black cable.
Connect black probe to the terminals yellow
cable.
Check the value.
YE = Yellow
BK = Black
If the measurement results give normal values,
continue to the section Checks, below.
If the result of the checking procedure is not
OK, the component must be replaced with a
new component.
Check
Connect the connector.
TJ Instruction VCC-512761-1
Page 6 ( 6 )
Check the LIN communication.
Start the engine.
Special Tool: T9510060, MULTIMETER
(DIGITAL)
Set multimeter for VAC measurement.
Check the value.
GN = Green
BU = Blue
If the measurement results give normal values,
continue to the section Checks, below.
Check
Check the heating coil.
Start the engine.
Set the switch for the heating element for the seat on max.
Special Tool: T9510060, MULTIMETER
(DIGITAL)
Set multimeter for VDC measurement.
Check the value. Measure or a minimum of 1 minute.
Connect red probe to the terminals black cable.
Connect black probe to the terminals blue cable.
Correct heaters: The voltage shall normally be 5V (DC)
when the heating is active and 0 V (DC)when the heating
is off.
Incorrect value of heating element backrest cushion:
Always 7V
Incorrect value of heating element cushion: Always 0 V
(DC).
BU = Blue
BK = Black
If the result of the checking procedure is not
OK, the component must be replaced with anew
component.
Installation
To install, reverse the removal procedure.
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: TJ33617.2.0-2020
Replacement Service Bulletin Number:
MFR Communication Date: 2020-01-08
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SEATS
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU coding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Programming): Allows for Ford, for Lincoln, and for Mazda ECU programming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- Cost-effective ECU Coding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 3 Years Software Update, Value for Money: With 3 years of software updates and 22+ languages(no IP restrictions), XTOOL D7S auto scanner code scanner ensures ongoing compatibility for the latest car models and improved diagnostic functions. This all system vehicle diagnostic scanner comes with a 30-day return policy and a 24-month repair for dependable performance. XTOOL are dedicated to your satisfaction, so enjoy seamless support and lifetime expert assistance. Should you encounter any issues or concerns, don’t hesitate to reach out XTOOL. D7S with newest update with 22 languages freely transfer without authorization, check details from setting-language or from XTOOL
- 🔥 Historical lowest pr-ice now on sa-le--hot se-lling.
- 【🎈𝗜𝗙𝟳𝟰𝟱 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝘀 𝟲 𝗲𝘀𝘀𝗲𝗻𝘁𝗶𝗮𝗹 𝗿𝗲𝘀𝗲𝘁 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝘀—𝗔𝗕𝗦 𝗕𝗹𝗲𝗲𝗱𝗶𝗻𝗴, 𝗢𝗶𝗹 𝗥𝗲𝘀𝗲𝘁, 𝗘𝗣𝗕, 𝗦𝗔𝗦, 𝗧𝗵𝗿𝗼𝘁𝘁𝗹𝗲 𝗥𝗲𝗹𝗲𝗮𝗿𝗻, 𝗮𝗻𝗱 𝗕𝗠𝗦—𝗽𝘂𝘁𝘁𝗶𝗻𝗴 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹-𝗴𝗿𝗮𝗱𝗲 𝗺𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 𝗯𝗮𝗰𝗸 𝗶𝗻 𝘆𝗼𝘂𝗿 𝗵𝗮𝗻𝗱𝘀.】Spongy brakes? Stuck oil light? Parking brake won't release? Off-center steering? Rough idle after battery disconnect? Draining battery? IF745 handles all with a few taps. One tool covers six dealer-level resets, saving hundreds in labor costs. ❗ NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨ 𝗜𝗙𝟳𝟰𝟱 𝗴𝗼𝗲𝘀 𝗯𝗲𝘆𝗼𝗻𝗱 𝗯𝗮𝘀𝗶𝗰 𝗰𝗼𝗱𝗲 𝗿𝗲𝗮𝗱𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝟭𝟬 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲𝗱 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝘀—𝗗𝗧𝗖 𝗟𝗼𝗼𝗸𝘂𝗽, 𝗜/𝗠 𝗥𝗲𝗮𝗱𝗶𝗻𝗲𝘀𝘀, 𝗙𝗿𝗲𝗲𝘇𝗲 𝗙𝗿𝗮𝗺𝗲, 𝗟𝗶𝘃𝗲 𝗗𝗮𝘁𝗮, 𝗢𝟮𝗦, 𝗢𝗕𝗠, 𝗘𝗩𝗔𝗣, 𝗮𝗻𝗱 𝗺𝗼𝗿𝗲. 】Pulling a code tells you something is wrong. IF745 tells you what the code means, when the fault happened, and what data surrounds it. Pass emissions with one I/M Readiness tap. Freeze the fault moment with Freeze Frame. Monitor live sensor data in real time. Turn cryptic codes into clear answers.
- 【🛒 𝗜𝗙𝟳𝟰𝟱 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝘀 𝗳𝘂𝗹𝗹-𝘀𝘆𝘀𝘁𝗲𝗺 𝗱𝗶𝗮𝗴𝗻𝗼𝘀𝘁𝗶𝗰𝘀 𝗮𝗰𝗿𝗼𝘀𝘀 𝗮𝗹𝗹 𝗺𝗼𝗱𝘂𝗹𝗲𝘀—𝗲𝗻𝗴𝗶𝗻𝗲, 𝗔𝗕𝗦, 𝗮𝗶𝗿𝗯𝗮𝗴, 𝘁𝗿𝗮𝗻𝘀𝗺𝗶𝘀𝘀𝗶𝗼𝗻, 𝘀𝘁𝗲𝗲𝗿𝗶𝗻𝗴, 𝘀𝘂𝘀𝗽𝗲𝗻𝘀𝗶𝗼𝗻, 𝗯𝗼𝗱𝘆 𝗲𝗹𝗲𝗰𝘁𝗿𝗼𝗻𝗶𝗰𝘀, 𝗮𝗻𝗱 𝗺𝗼𝗿𝗲. 】Warning lights on but you don't know why? Skip the $100+ diagnostic fee at the shop. Run a complete self-check from your driveway. IF745 reads and clears fault codes, retrieves ECU info, and displays live data from every accessible module—delivering a full vehicle health report in minutes, without leaving home.
- 【✅𝗜𝗙𝟳𝟰𝟱 𝗳𝗲𝗮𝘁𝘂𝗿𝗲𝘀 𝗮 𝟳-𝗶𝗻𝗰𝗵 𝗱𝗶𝘀𝗽𝗹𝗮𝘆, 𝗲𝗿𝗴𝗼𝗻𝗼𝗺𝗶𝗰 𝗱𝗲𝘀𝗶𝗴𝗻, 𝗪𝗶-𝗙𝗶 𝘂𝗽𝗱𝗮𝘁𝗲𝘀, 𝗮𝗻𝗱 𝘇𝗲𝗿𝗼 𝘀𝘂𝗯𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻 𝗳𝗲𝗲𝘀 𝗳𝗼𝗿 𝗵𝗮𝘀𝘀𝗹𝗲-𝗳𝗿𝗲𝗲 𝗱𝗶𝗮𝗴𝗻𝗼𝘀𝘁𝗶𝗰𝘀.】Large screen means no squinting. Intuitive navigation and customizable data displays put key info at your fingertips. Wi-Fi delivers lifetime free updates without a computer. No recurring fees. No hidden costs. Just a reliable tool that works as hard as you do.
This product presentation was made with AAWP plugin.