TSB009123

T-SB-0091-23
November 14, 2023
MIL ON With DTC P024313
Service
Category
Engine/Hybrid System
Section
Engine Control
Market USA
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2023
Crown
VDS(s): AFAAF
Engine(s): T24
Transmission(s): 6AT-F
Introduction
Some 2023 model year Crown vehicles may exhibit a MIL ON condition with Diagnostic Trouble
Code (DTC) P024313 (Turbocharger/wastegate solenoid “A” circuit open) present. The Engine
Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to
reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address
this condition.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EL2319
Reprogram the ECM (PCM)
0.7
89661-#####*
8A
74
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being repaired
by searching for the parts in the Electronic Parts Catalog using the VIN filter.
APPLICABLE WARRANTY
 This repair is covered under the Toyota Federal Emission Warranty. This warranty is in effect for
96 months or 80,000 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.
© 2023 Toyota Motor Sales, USA
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T-SB-0091-23
November 14, 2023
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MIL ON With DTC P024313
Parts Information
PART NUMBER
PART NAME
QTY
89661-4D650
Computer, Engine Control
–
NOTE
The ECM (PCM) should NOT be replaced as part of the Repair Procedure.
Required Tools & Equipment
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.
REQUIRED EQUIPMENT
SUPPLIER
Techstream ADVI*
PART NUMBER
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.
 GTS+ software version 2023.03.002.02 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
 Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
© 2023 Toyota Motor Sales, USA
T-SB-0091-23
November 14, 2023
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MIL ON With DTC P024313
Calibration Information
CALIBRATION ID
MODEL
Crown
ENGINE
T24A-FTS
PREVIOUS
NEW
8A2223009000
8A2223009100
8A2223009200
8A2223009300
8A2223009400
Repair Procedure
1. Confirm the condition exists.
Does the vehicle exhibit a MIL ON condition with DTC P024313 (Turbocharger/wastegate
solenoid “A” circuit open) present?.

YES — Continue to step 2.

NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Use GTS+ to confirm if the ECM (PCM) calibration has been updated.
Is the calibration ID listed in GTS+ the latest ECM (PCM) calibration?

YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.

NO — Continue to step 3.
3. Flash reprogram the ECM (PCM).
NOTE
 The battery diagnostic tool MUST be used in Power Supply Mode to maintain battery voltage
at 13.5V while flash reprogramming the vehicle.
 For details on how to use the battery diagnostic station, refer to the DCA-8000 Instruction Manual
located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics.
Follow the procedures outlined in T-SB-0107-20 GTS+ECU Flash Reprogramming Procedure
With Security Signature, and flash the ECM (PCM) with the NEW calibration
file update.
4. Using GTS+, clear ANY DTCs and confirm the condition is no longer present.
© 2023 Toyota Motor Sales, USA