NHTSA ID Number: 10132467
Manufacturer Communication Number: T-SB-0270-17
TSB/Document Date: 2018-04-02
Summary
TSB: Some 2017 model year iA vehicles may exhibit Diagnostic Trouble Codes (DTCs) U0323 (PCM Software Incompatibility with Instrument Panel Control Module), U0423 (ABS Invalid Data Received from Instrument Panel Cluster Control Module), or U3000 (IC Control Module Internal Electronic Failure) if the vehicle?s battery or the multimedia display is disconnected. Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0270-17
August 14, 2017
DTC U0323/U0423/U3000 Cannot be Deleted
Service
Category
Audio/Visual/Telematics
Section
Navigation/Multi Info Display
Market USA
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2017
iA
Body Type(s): 4Dr. Sedan
Transmission(s): 6MT, 6AT
Introduction
Some 2017 model year iA vehicles may exhibit Diagnostic Trouble Codes (DTCs) U0323
(PCM Software Incompatibility with Instrument Panel Control Module), U0423 (ABS Invalid Data
Received from Instrument Panel Cluster Control Module), or U3000 (IC Control Module Internal
Electronic Failure) if the vehicle’s battery or the multimedia display is disconnected. Follow the
Repair Procedure in this bulletin to address this condition.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
Techstream 2.0*
Techstream Lite
PART NUMBER
QTY
TS2UNIT
ADE
Techstream Lite (Green Cable)
TSLITEPDLR01
1
TSLP2DLR01
* Essential SST.
NOTE
Only ONE of the Techstream units listed above is required.
Software version 12.10.018 or later is required.
Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
© 2017 Toyota
Motor Sales, USA
Page 1 of 5
T-SB-0270-17
August 14, 2017
Page 2 of 5
DTC U0323/U0423/U3000 Cannot be Deleted
Repair Procedure
The Tire Pressure Monitor System (TPMS) warning light flashes and/or the Traction Control
System/Dynamic Stability Control (TCS/DSC) indicator lights will illuminate. The DTC CANNOT be
deleted if the DTC occurs when the ignition is turned to the OFF position within 20 seconds of
turning the ignition ON and the ROOM fuse (Engine Compartment) is NOT installed when the
battery level is low and/or the navigation receiver is disconnected.
1. Confirm the condition.
Using Techsteam, perform a Health Check. Was DTC U0323, U04423, or U3000 retrieved?
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
2. Using Techstream, clear the DTCs.
3. Using Techstream, perform a Health Check. Was DTC U0323, U04423, or U3000 retrieved?
YES — Complete the DTC Troubleshooting Procedure, then continue to step 4.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
4. Verify that the navigation receiver and the
ROOM fuse are installed properly.
A. Verify that the ROOM fuse is installed in
the Relay Block as shown.
Figure 1. ROOM Fuse
2
1
1
Relay Block
2
ROOM Fuse Installation Location
© 2017 Toyota Motor Sales, USA
T-SB-0270-17
August 14, 2017
Page 3 of 5
DTC U0323/U0423/U3000 Cannot be Deleted
Repair Procedure (Continued)
B. Verify that the navigation receiver
connectors are properly seated.
Figure 2. Navigation Receiver
Access the navigation
receiver connectors.
Refer to the Technical Information
System (TIS), applicable model and
model year Repair Manual:
1
2017 iA:
Audio/Visual/Telematics –
Audio Visual – “Audio/Video:
Navigation Receiver: Removal”
Are the navigation receiver connectors
properly seated?
YES — Go to step 6.
NO — Continue to step 5.
1
Connector
5. If the navigation receiver connectors are NOT properly seated, complete the
following procedure:
A. Properly seat the connectors.
B. Switch the ignition ON (engine OFF or ON) and wait 1 minute or more.
C. Switch the ignition OFF and wait for 3 seconds or more.
D. Switch the ignition ON (engine OFF or ON) and complete the navigation receiver
automatic configuration.
6. Reinstall the multimedia display, audio panel #1, and audio panel #2.
Refer to TIS, applicable model and model year Repair Manual:
2017 iA:
Audio/Visual/Telematics – Audio Visual – “Audio/Video: Navigation
Receiver: Installation”
© 2017 Toyota Motor Sales, USA
T-SB-0270-17
August 14, 2017
DTC U0323/U0423/U3000 Cannot be Deleted
Repair Procedure (Continued)
7. On the “Home” screen, press the rightmost
icon labeled Settings.
Figure 3.
8. In the “Settings” menu, press System.
Figure 4.
NOTE
The change to the “Settings” menu can be
made using either the “Temp” or
“Distance” submenu. If Distance is
selected, go to substep B.
A. In the “System” submenu, press Temp
and Select F° or C° to change the
temperature units. Choose the alternate
setting from the previously selected
measurement unit.
Figure 5.
© 2017 Toyota Motor Sales, USA
Page 4 of 5
T-SB-0270-17
August 14, 2017
Page 5 of 5
DTC U0323/U0423/U3000 Cannot be Deleted
Repair Procedure (Continued)
B. In the “System” submenu, press Distance
and select Miles or Km to change the
mileage units. Choose the alternate
setting from the previously selected
measurement unit.
Figure 6.
9. Turn the ignition key to the OFF position.
10. Turn the ignition key to the ON position and delete the DTCs using Techstream.
11. Confirm that the DTCs have been cleared using Techstream.
12. Return the original temperature and/or mileage units using the multimedia menu system.
13. Confirm that the DTCs do NOT reset.
© 2017 Toyota Motor Sales, USA
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TSB/Document ID: T-SB-0270-17
Replacement Service Bulletin Number:
MFR Communication Date: 2017-08-14
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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