TJ35721.4.0-2020

Polestar 
Service and Parts Business
Technical Journal
TITLE:
Diagnose of HV system after HVCH malfunction
REF NO:
ISSUING DEPARTMENT:
CAR MARKET:
TJ 35721.4.0
Technical Service
United States and Canada
PARTNER:
ISSUE DATE:
STATUS DATE:
3 US 7510 Volvo Car USA
2020-11-24
2020-11-24
FUNC GROUP:
8760
FUNC DESC:
Auxiliary heater, electrically
operated
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Attachment
File Name
File Size
TJ 35721.jpg
0.3609 MB
Rows beginning with * are modified
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
DESCRIPTION:
* Added CSC code
If confirmed HVCH malfunction, please follow advice under service.
CSC Customer Symptom Codes
Code
Description
BE
Starting/Engine does not start/Engine does not turn/Unsure when/at all times
BJ
Starting/Engine does not start/Unsure when/at all times
KK
Temperature control/Heater not hot enough
DTC Diagnostic Trouble Codes
Vehicle Type
Type
534
Eng
Eng
Desc
Sales Body
Gear
Steer Model Year
2021-2021
Plant
Chassis range
Struc Week
Range
19
0000001-9999999
202007-999952
Produced and printed in the USA and available as an electronic document.
© Polestar 2020
Technical Journal 35721.4.0
SERVICE:
If a defect is found with the HVCH causing an isolation warning, before replacement of the HVCH
perform a test of high voltage battery pre-charge contactor. This is to determine if the pre-charge
resistor has been damaged. If the result confirms the pre-charge resistor is damaged, also replace the
complete BDU.
High voltage battery contactor test found in Vida as follow: Planning & Diagnostics->Components>ECUs->Battery Energy Control Module->Diagnostic Sequences
If high voltage battery contactor test result is ok, please remove the MSD to prevent further stress on
pre-charge resistor.
After HVCH replacement please test the 3-phase AC Charging circuit to determine if the OBC has
been damaged. This has to be done on an 11kW and above power charge station to utilize 3-phase
charging. If a red indication is present in the EVI Charging Inlet, please follow fault tracing according to
VIDA.
HVCH = High Voltage Coolant Heater
BDU = Battery Disconnect Unit
MSD = Manual Service Disconnector
OBC = On Board Charger
EVI = Electrical Vehicle Inlet
Warranty claim info:
To get warranty claim accepted for a job described in this TJ, please use following data:
VST OP number: 36050-2
VST OP number: 31130-2
36050-2 Calibrating/Identifying with VIDA
31130-2 High Voltage Battery, disconnecting and connecting
VST Operation Number
VST Operation Number
Description
36050-2
Calibrating/Identifying with VIDA
31130-2
High Voltage Battery, disconnecting and connecting
VEHICLE REPORT:
Yes, please submit a Vehicle Report if the service solution described in this TJ has no effect. Use
concern area “Vehicle Report Polestar” and sub concern area “Support needed Polestar”, use
function group 3113.
To view TJ attachment continue to next page. This TJ has one attachment.
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2020-11-24
Technical Journal 35721.4.0
2020-11-24
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