T-SB-0096-22 Rev

T-SB-0096-22
Rev1
October 24, 2022
Hybrid System Overheating Message and/or RoB DTC
X0528
Service
Category
Engine/Hybrid System
Hybrid/Battery Control
System
Section
Market USA and Mexico
Applicability
YEAR(S)
MODEL(S)
2023
Camry HV
ADDITIONAL INFORMATION
REVISION NOTICE
December 19, 2022 Rev1:
 The Production Change Information and Calibration Information sections have been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
Some 2023 model year Camry Hybrid vehicles may display a Multi-information Display (MID)
warning message “Hybrid System Overheated Reduced Output Power” and/or a RoB Diagnostic
Trouble Code (DTC) X0528 (Generator Inverter Temperature High) present in the vehicle control
history. Follow the Repair Procedure in this bulletin to address these conditions.
© 2022 Toyota Motor Sales, USA
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T-SB-0096-22
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Hybrid System Overheating Message and/or RoB DTC X0528
Table of Contents

Production Change Information ...............................................................................................3

Warranty Information ...............................................................................................................4


For USA Market .................................................................................................................4

For Mexico Market .............................................................................................................4
Parts Information .....................................................................................................................5

For USA Market .................................................................................................................5

For Mexico Market .............................................................................................................5

Required Tools & Equipment ...................................................................................................6

Calibration Information.............................................................................................................6

Repair Procedure ....................................................................................................................7
© 2022 Toyota Motor Sales, USA
T-SB-0096-22
Rev1
October 24, 2022
Hybrid System Overheating Message and/or RoB DTC X0528
Production Change Information
This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs
shown below.
MODEL
HV BATTERY TYPE
PRODUCTION CHANGE EFFECTIVE VINS
4T1F31AK#PU047495
4T1R31AK#PU047495
4T1H31AK#PU047495
4T1C31AK#PU047495
4T1K31AK#PU047495
4T1T31AK#PU047495
4T1G31AK#PU047495
Camry HV
Li-ion
4T1S31AK#PU047495
4T1F31AK#PU603028
4T1C31AK#PU603028
4T1R31AK#PU603028
4T1H31AK#PU603028
4T1K31AK#PU603028
4T1G31AK#PU603028
4T1S31AK#PU603028
4T1T31AK#PU603028
Ni-MH
© 2022 Toyota Motor Sales, USA
4T1B21HK#PU018735
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Hybrid System Overheating Message and/or RoB DTC X0528
Warranty Information
For USA Market
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL9076
Reprogram the Inverter Assembly With
Converter ECU
0.5
G92A0-33033
8A
74
APPLICABLE WARRANTY
 This repair is covered under the Toyota Hybrid Warranty. This warranty is in effect for
96 months or 100,000 miles, whichever occurs first, from the vehicle’s in-service date.
 Warranty application is limited to occurrence of the specified condition described in
this bulletin.
For Mexico Market
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL9076
Reprogram the Inverter Assembly With
Converter ECU
0.5
G92A0-33033
8A
74
APPLICABLE WARRANTY
 This repair is covered under the Toyota Basic Warranty. This warranty is in effect for
36 months or 60,000 kilometers, whichever occurs first, from the vehicle’s in-service date.
 Warranty application is limited to occurrence of the specified condition described in
this bulletin.
© 2022 Toyota Motor Sales, USA
T-SB-0096-22
Rev1
October 24, 2022
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Hybrid System Overheating Message and/or RoB DTC X0528
Parts Information
For USA Market
PART NUMBER
PART NAME
QTY
G92A0-33033
Inverter Assy, W/Converter
–
00451-00001-LBL
Authorized Modifications Labels
1
NOTE
 The ECM (PCM) should NOT be replaced as part of the Repair Procedure.
 Authorized Modifications Labels may be ordered in packages of 25 from the Materials Distribution Center
(MDC) (portal.toyotamdc.com) under item No. 00451-00001-LBL.
For Mexico Market
PART NUMBER
PART NAME
QTY
G92A0-33033
Inverter Assy, W/Converter
–
00451-00002-MEX
Authorized Modifications Labels
1
NOTE
 The ECM (PCM) should NOT be replaced as part of the Repair Procedure.
 Authorized Modifications Labels may be ordered in packages of 25 from the Materials Distribution Center
(MDC) (portal.toyotamdc.com) under item No. 00451-00002-MEX.
© 2022 Toyota Motor Sales, USA
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Hybrid System Overheating Message and/or RoB DTC X0528
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
PART NUMBER
Techstream ADVI*
QTY
TSADVUNIT
Techstream 2.0
TS2UNIT
ADE
1
Techstream Lite
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 Software version 17.20.013 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787 (USA) or 01-55-50103041 (Mexico).
 Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Battery Diagnostic Tool*
DCA-8000P T
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335 (USA) or 01-800-504-5330 (Mexico).
Calibration Information
HV BATTERY TYPE
TARGET
ECU
Li-ion
MG ECU
Ni-MH
CALIBRATION ID
CPU
PREVIOUS
1MG
898844201401
2MG
898844202411
1MG
898844201400
2MG
898844202410
© 2022 Toyota Motor Sales, USA
NEW
898844201501 / 898844202511
898844201500 / 898844202510
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Hybrid System Overheating Message and/or RoB DTC X0528
Repair Procedure
1. Confirm the condition exists.
Does the vehicle display a MID warning message “Hybrid System Overheated Reduced
Output Power” and/or a RoB DTC X0528 (Generator Inverter Temperature High) present in
the vehicle control history?
 YES — Continue to step 2.

NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Use Techstream to confirm if the inverter assembly with converter has been updated and
check for the Authorized Modifications Label affixed to the vehicle in the location shown
below. Confirm if the inverter assembly with converter calibration has been updated.
Is the calibration ID listed in Techstream and on the label the latest inverter assembly with
converter calibration?
 YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.

NO — Continue to step 3.
Figure 1. Location of Authorized Modifications Label on 2023 model year Camry Hybrid vehicles
TOYOTA MOTOR CORPORATION
AUTHORIZED MODIFICATIONS
THE FOLLOWING MODIFICATIONS HAVE BEEN MADE:
1
2
THESE MODIFICATIONS HAVE BEEN APPROVED
AS APPROPRIATE BY EPA AND CARB
3
DEALER CODE:
CHANGE AUTHORITY:
DATE:
4
5
1
Replacement inverter assembly with converter
(e.g., G92A0-33033)
4
Date Completed
2
New Calibration ID (e.g., Main – 898844201501)
5
This SB Number
3
Dealer Code
© 2022 Toyota Motor Sales, USA
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Rev1
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Hybrid System Overheating Message and/or RoB DTC X0528
Repair Procedure (continued)
3. Disconnect the cooling fans.
A. Disconnect the wire harness connector
from the cooling fan wire.
Figure 2.
B. Lift the lever to disengage the lock and
disconnect the wire harness from the
cooling fan motor.
4. Flash reprogram the inverter assembly with converter.
NOTE
 The battery diagnostic tool MUST be used in Power Supply mode to maintain battery voltage at
13.0 – 13.5V while flash reprogramming the vehicle.
 For details on how to use the battery diagnostic tool, refer to the DCA-8000 Instruction Manual
located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics.
Follow the procedures outlined in T-SB-0134-16 (USA) or T-SB-0165-19 (Mexico) Techstream
ECU Flash Reprogramming Procedure and flash the inverter assembly with converter with the
NEW calibration file update.
5. Prepare and install the Authorized Modifications Label.
A. Using a permanent marker, enter the following information on the label:

Inverter assembly with converter part number [Refer to the Parts Information section
for the NEW PART NUMBER]

Calibration ID(s) [Refer to the Calibration Information section for the NEW
CALIBRATION ID]

Dealer Code

Repair Date

Change Authority [This bulletin number]
B. Affix the Authorized Modifications Label to the vehicle at the location shown in Figure 1.
The Authorized Modifications Label is available through the MDC, P/N 00451-00001-LBL
(USA) or 00451-00002-MEX (Mexico).
© 2022 Toyota Motor Sales, USA
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Hybrid System Overheating Message and/or RoB DTC X0528
Repair Procedure (continued)
6. Connect the cooling fans.
A. Connect the wire harness connector to
the cooling fan motor and lock it with
the lever.
Figure 3.
B. Connect the wire harness connector to
the cooling fan wire.
7. Test-drive the vehicle to confirm normal vehicle operation and there are no DTCs present.
© 2022 Toyota Motor Sales, USA