TIS techstream

Known Bugs List

Version 15.00.028 Software
Last Updated: 5/1/2020
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Open Issues

86 Models will not complete CUW reprogramming

Vehicle(s): 86
Description: While performing CUW update to 86, the reprogramming will fail and give a message "Cannot change to reprogramming mode." This condition has been linked to a higher or lower than normal voltage condition due to battery charger settings.
Status: Under investigation (1500-004).
Workaround: Please use the Battery Diagnostic Tool DCA-8000 or similar device in Power Supply Mode to maintain battery voltage between 13.0 volts and 13.5 volts. Adjust settings in battery charger/power supply as needed to meet these specifications.

TIS techstream

Fatal Error when accessing Utility function

Vehicle(s): All
Description: When using Techstream version 15.00.028 with a VIM other than the MongoosePro MFC and MongoosePro MFC2, a Fatal Error can prevent access to Utility section for all Systems.
Status: Under investigation (1500-003).
Workaround: If experiencing this concern, use Techstream version 14.30.022 with same VIM device. If version 15.00.028 is required for 2020 RAV4 or other new models, please use MongoosePro MFC or MFC2 VIM.

TIS techstream

CAN Bus check will not complete

Vehicle(s): 2020 CH-R
Description: While performing CAN Bus check on 2020 CH-R, a Fatal Error message will appear and the check will not complete.
Status: Under investigation (1430-008).
Workaround: Only when CAN Bus check is required, use manual vehicle selection as 2019 CH-R. For all other functions, please use automatic vehicle connect.

TIS techstream

The "Activate Lock-Up Solenoid" Active Test fails

Vehicle(s): Various
Description: Error message appears during attempts to activate solenoid. Preconditions description states that Throttle Position must be 20% or higher, which is incorrect.
Status: Under investigation (1500-002).
Workaround: When applying throttle during Active Test, do not exceed 20% Throttle Position. Follow all other preconditions as described.

TIS techstream

During Health Check "ATX web service unavailable" message occurs

Vehicle(s): All
Description: During a Health Check, an "ATX web service unavailable" message might occur and will not allow the Health Check to complete normally. Calibration update check does not complete when the error occurs.
Status: Under investigation.
Workaround: Please manually search TIS with Calibration ID at TIS > Diagnostics > Reprogramming.

TIS techstream

Unable to connect to Telematics system

Vehicle(s): 2020 ES350/300h
Description: Techstream will not connect to the Telematics system. It will not be possible to view Live Data, Clear DTCs, etc.
Status: Currently under investigation (1430-005).
Workaround: Only when connection to Telematics system is required and unable to be performed normally, perform manual vehicle selection as 2020 GS300 8AE-FTS with option RADAR CRUISE.

TIS techstream

"TIS Keyword" search feature will not open TIS correctly

Vehicle(s): All
Description: When using the TIS Keyword Search feature, the browser will display the following message: There was an error in the page you requested. Please contact administrator.
Status: Currently under investigation.
Work Around: If this message is seen during any TIS function used by Techstream, open your browser and log into TIS. Do not close the window and switch back to Techstream to use the Keyword Search or desired TIS function. This will open a new tab or window with the correct page requested.

TIS techstream

Unable to view Live Data after "Offline Mode" message

Vehicle(s): All
Description: When a known good connection to the internet is active, Techstream will display a message with the option to continue in "Offline Mode". After selecting "Offline Mode" and selecting a desired system, the Live Data List for that system will fail to connect or lose communication shortly after ECU connection.
Status: Currently under investigation.
Workaround: Disable internet connection while viewing Live Data in Techstream. The same message Offline Mode message will appear when connecting to the vehicle, but the Data List function will operate normally.

TIS techstream

Printed files do not display correctly

Vehicle(s): N/A
Description: When printing from Techstream ADV-i or some other Windows 10 PCs, only the upper left section of the displayed screen is printed.
Status: Currently under investigation (1410-002).
Workaround: In Windows, navigate to Windows Settings > System > Display. Adjust "Scale and Layout" to 100% prior to printing. Return to preferred setting after printing has completed.

TIS techstream

Flagged points do not display when viewing the Data List graph

Vehicle(s): TBD
Description: While recording from the Data List, the flags applied will not display normally when in graphing view. Flagged locations show as thin lines in the horizontal scrolling bar, but do not show as expected on the traces.
Status: Currently under investigation (1410-003).
Workaround: If you experience this anomaly, please submit an error report immediately after the issue is detected. After submitting Error Report, please attempt to reboot PC and perform recording and apply flags to see if the issue persists.

TIS techstream

Warning message for VIM Firmware out of date

Vehicle(s): N/A
Description: After installing Techstream v14.1 or later, when selecting Connect to Vehicle, a warning message requesting to update VIM firmware displays. At this time, only the Techstream 2.0 and MongoosePro MFC/Blue Case drivers are affected.
Status: If VIM firmware/drivers are earlier than version 1.2.10.0, they require an updated version.
Correction: Download and install VIM firmware/drivers from TIS > Diagnostics > ScanTool tab under the Techstream Lite section. Instructions for installing VIM firmware can be found in the "Techstream Lite Installation Instructions" link.

TIS techstream

Smart Code Reset fails when all keys are lost

Vehicle(s): All Smart Key equipped 2018+ LS500/h, 2019+ ES350/300h, UX200/UX250h 2019+ Avalon/Avalon HV, 2019+ Corolla Hatch, 2020+ Corolla/Hatch/HV, and 2019+ RAV4/HV
Description: After selecting "Yes" to begin 16 minute countdown for Reset, a failure message displays before a progress bar is shown.
Status: Vehicle communication must be maintained to avoid this result.
Correction: Refer to Repair Manual for instructions to keep vehicle communication operational. Currently, equipped vehicles must have courtesy light switch in driver's door jamb cycled every 1.5 seconds. This cycling must be performed throughout the entire Smart Code Reset procedure. Note: if the vehicle has a bladed key (non-Smart Key), follow RM instructions as cycling the courtesy light switch should not be required.

TIS techstream

Incorrect message that "Techstream is not registered to an authorized dealership"

Vehicle(s): All
Description: While performing a Health Check, the message "This Techstream is not registered to an authorized Toyota/Lexus/Scion Dealership." is displayed.
Status: Currently under investigation (1330-005).
Workaround: Please submit an Error Report when this occurs by pressing F12 or the red "E" icon in the icon tray. In the Error Description, provide a direct contact email address. After submitting the Error Report, Press "Cancel" on the message to complete the Health Check.

TIS techstream

Inaccurate Fuel Consumption test results

Vehicle(s):

TIS techstream

Description: Fuel Consumption test indicates poor fuel economy for the specified engines. Actual fuel economy is unaffected.
Status: Currently under investigation (1220-005).

TIS techstream

Cannot Perform DCM Activation on 2017 Prius Prime

Vehicle(s): 2017 Prius Prime.
Description: Techstream cannot perform a DCM (Telematics ECU) Activation following a DCM replacement. Techstream may exhibit "ATX web service unavailable" error or similar message when attempting a DCM activation.
Status: Under investigation.

Errors with Tire Pressure Monitor System

Vehicle(s): All CAN Bus equipped vehicles with TPMS.
Device(s): Techstream and Techstream Lite (Mongoose and/or Mongoose Pro VIMs)
Description: When clicking on Data List or attempting to Clear DTCs, an Error Box may appear describing a negative/no response from the ECU or a loss in communication.
Status: Under investigation. Some users report success after repeated attempts (1010-005).

Design Limitations

The Error Report window opens repeatedly

Vehicle(s): N/A
Description: The Error Report window will repeatedly open, sometimes without Techstream open at that time. This is caused by CUWC being ended abnormally. Examples of abnormal end are using Task Manager to terminate CUWC or the PC powering off while the application is running. Rebooting the PC will stop the Error Reports from being generated.
Status: Currently under investigation (1330-004).
Workaround: To correctly close CUWC, press "OK" to continue attempting to connect to the vehicle three times. After the final failed attempt, the application will close by pressing "OK".

TIS techstream

Unable to communicate with Air Conditioning or AutoLeveling Headlights

Vehicle(s): 2019 Yaris SD Mex-Prod
Description: The Air Conditioning or AutoLeveling Headlight systems will not communicate with Techstream.
Workaround: Communication with these systems requires the MongoosePro MFC2 (Green Case) VIM cable or Techstream ADV-i with version 13.30.018 or later software.

TIS techstream

Techstream Kilometers display does not match vehicle's Odometer

Vehicle(s): See the chart below for affected Yaris vehicles. Does not affect US Market vehicles.

TIS techstream

Description: When the vehicle's odometer displays in kilometers, Techstream displays a different number (i.e., vehicle shows 3090km and Techstream shows 4972km).
Status: The KM displayed on the vehicle odometer is accurate. Use this value for reference and not the Techstream KM displayed.

TIS techstream

Main Body ECU missing Wireless Code Registration Utility

Vehicle(s): All Models.
Description: Some Main Body ECUs will not show the Utility "Wireless Code Registration" available.
Status: This condition can be due to the vehicle performing remote communications at the time of accessing the ECU.
Work Around: Disconnect from the vehicle long enough to allow remote communication to finish. Reconnect at a later time to check for availability of Utility.

TIS techstream

Unable to export .csv file from Dual Data List and Active Test.

Vehicle(s): All Models.
Description: After exporting Dual Data List data and Active Test data, csv. file does not contain data. Exporting csv. file works normally in Data List.
Status: Determined to be normal operation (1310-001).

ECT ECU unable to "Read Configuration"

Vehicle(s): 2017 Toyota iA.
Description: ECT ECU configuration utility unable to "Read Configuration". The option "Before ECU Replacement" will be grayed out.
Status: This function is not available on all ECUs and is a normal condition (1220-004).
Work Around: Perform repair the same manner as if "Configuration" information could not have been captured.

TIS techstream

Check the Cylinder Compression Active Test doesn't record Cylinder Speeds

Vehicle(s): Engine types A25A-FKS, 2GR-FKS, 8AR-FTS, 6AR-FSE, and 8NR-FTS for 2015-2018 Model Year.
Description: When attempting to perform "Check the Cylinder Compression" Cylinder Speed does not record or change.
Work Around: Cranking must be started within 1 second of clicking "Start" button in command box.
Status: Multiple 2015-2018 Models affected (1200-007).

TIS techstream

Seed Code does not generate during Immobilizer Reset

Vehicle(s): All.
Description: Seed Code will not generate (grayed out), during Immobilizer Reset process if VIN displays in lowercase letters. Caused by VIN write with unsupported scantools. Techstream will not allow lowercase letters during VIN write to ECU.
Work Around: Perform the VIN write Utility with Techstream and retype the VIN.

Vehicle Information does not Auto-populate

Vehicle(s): 2003 RX300.
Description: Vehicle Connection Wizard does not automatically populate the vehicle information.
Work Around: Manually select the Model, Model Year, and Engine to connect to the vehicle.

Cannot perform the Control the Injection Mode Active Test

Vehicle: 2016 Tacoma.
Device(s): Techstream and Techstream Lite.
Description: The Control the Injection Mode Active Test will only allow manipulation of Port injection and will intermittently terminate before the 3-minute time limit. Selection of Direct will result in an immediate error, ECU cannot perform the requested Active Test, although all stated preconditions are met.
Work Around: Please refer to Tech Tip T-TT-0376-15.

TIS techstream

Vehicle Combination Meter units do not reflect being changed by Techstream

Vehicle(s):2015 Yaris
Description: When Units are changed via Techstream from miles/gallon to Km/l, the vehicles Odometer, Trip A, and Trip B do not change and stay in Miles. However, the current fuel efficiency, average fuel efficiency, average speed, and range DO reflect the change made by Techstream successfully.
Status: Determined to be normal operation (1120-004).

TIS techstream

Back Door Active Test results in Fatal Error

Vehicle(s): 2016 RAV4.
Description: Active Tests and Data List within Back Door ECU consistently result in a Fatal Error.
Status: Please refer to TSB-0059-16 for instructions on the fix to this issue. (1030-006).

DTC P1121 description misleading

Vehicle: 2004-2009 Toyota Prius.
Device(s): Techstream and Techstream Lite.
Description: Due to the Prius now sharing an ECU with 5LE equipped vehicles, the DTC now reads, "Throttle/Pedal Position Sensor/Coolant Valve Position Sensor Circuit Stuck", whereas it previously read, "Coolant Flow Control Valve Position Sensor Circuit Stuck".
Work Around: Refer to the TIS Repair Manual for the relevant portion of the DTC.

TIS techstream

Monitor for O2 sensor fails consistently

Vehicle:

TIS techstream

Device(s): Techstream and Techstream Lite
Description: Monitor for O2 sensor consistently fails resulting in a “complete/incomplete fail”. This is a result of an ECU bug inherent to this vehicle (410-041). In most cases, the O2 sensors are functioning properly even if a “complete/incomplete fail” result is seen. Verify O2 sensor operation by other processes to determine if further diagnosis is required.

TIS techstream

Confusing PIDs Displayed in TPMS ECU

Vehicle: Vehicles NOT equipped with a factory optional 5th TPMS sensor, i.e. some 2013 RAV4s and 2014 Highlanders.
Device(s): Techstream and Techstream Lite.
Description: PIDs indicating the presence of a 5th TPMS sensor are displayed in the Data List and Health Check results on vehicles allegedly not equipped with a 5th sensor. These vehicles may come equipped with an optional 5th sensor, and this can be physically verified by inspecting the spare tire.

TIS techstream

Monitor Function Unavailable

Vehicle: 2013 FR-S.
Device(s): Techstream and Techstream Lite.
Description: Function not available for this vehicle. The button is grayed out (810-007).

TIS techstream

Powertrain DTCs with FFD Have No Designation

Vehicle: All.
Device(s): Techstream and Techstream Lite.
Description: When viewing Trouble Codes or saved Health Check data, Powertrain DTCs with FFD may have no designation as to what type of Trouble Code is saved. This is a normal condition when a DTC sets as "Pending" but does not confirm on subsequent cycle test. This is so that the FFD may still be viewed.

TIS techstream

Confusing Door Courtesy Light Values

Vehicle: 2008-2011 Sienna.
Device(s): Techstream and Techstream Lite.
Description: Parameters “FR and FL Door Courtesy” in the Main Body ECU Data List will display an “ON” value when those doors are closed. Siennas with a L/O date of November 2011 (2012MY) and forward will display values logically; consistent with the rear doors.

TIS techstream

Cannot Connect Using Generic OBDII

Vehicle: All, including other makes/brands of vehicle.
Device(s): Techstream Lite.
Description: When using a Mongoose VIM to connect Techstream to a vehicle via Generic OBDII, the result is an error window that displays "Cannot establish communication with the ECU."

TIS techstream

HL Auto Leveling Active Test Inapplicability and Errors

Vehicle: 2010 Prius.
Device(s): Techstream and Techstream Lite.
Description: Due to an ECU bug, inapplicable Active Tests may display. Furthermore, the Drive Leveling Motor Active Tests may fail to execute, resulting in an error.

TIS techstream

Health Check DTC Clear All Failure

Vehicle: 2009-2010 Corolla, xD.
Device(s): Techstream and Techstream Lite.
Description: When using the Clear All DTC function from the Health Check Screen, with IG ON and engine not running, the progress indicator will loop continuously until the DTCs clear (after 5 or 6 minutes). This also occurs when clearing DTCs of the EMPS System. This issue can be avoided by having the engine running while clearing DTCs.

Immobilizer/Smart Key Reset Abnormal Operation

Vehicle: All.
Device(s): Techstream and Techstream Lite.
Description: When performing an Immobilizer or Smart Key Reset, errors or abnormal operation may occur if Java software is not installed, has become corrupt, or version is too old. Installing the latest version of Java (v1.6 - Update 7, minimum) from http://www.java.com will resolve this issue.

Closed Issues

Vehicle information does not populate on 2020 RAV4 models

Vehicle(s): 2020 RAV4 and RAV4 HV with VINs beginning with 4T3
Description: While connecting Techstream to 2020 RAV4 vehicles produced at TMMK, the Model, Model Year, and Engine options will not automatically populate. When this bug is experienced, the VIN does display on the connection screen.
Status: Corrected with version 15.0 (1430-009).
Note: This concern is not a vehicle defect and does not require diagnosis or repair.

During Health Check SOLRAPI error occurs

Vehicle(s): All

Description: Causes inaccurate Health Check results.

Status: Resolved with server change on 3/23/20 (1210-005).

After reprogramming, Intelligent Clearance Sonar ECU will not communicate

Vehicle(s): Multiple Toyota and Lexus models

Description: When reprogramming the ICS ECU, the calibration update may fail and, the ECU may not communicate with Techstream.

Status: Corrected with version 15.0 (1320-004).

Note: Please review T-SB-0134-16 or L-SB-0001-18, and Vehicle Reprogramming Tips.

Telematics system does not appear on Health Check results

Vehicle(s): 2016 Mirai

Description: When performing a Health Check on a 2016 Mirai, the results do not include the Telematics system as well as the current calibration ID.

Status: Corrected with version 14.3 (1420-002).

Public User profile is unable to access Tech Info for Smart Code Reset/Add Key function

Vehicle(s): All LS500/H, 2019 ES350/300h, UX200/UX250h 2019 Avalon/Avalon HV, 2019 Corolla Hatch, and 2019 RAV4

Description: When using Public User profile type to perform key and immobilizer functions that require a Pass-Code, the Tech Info site cannot be reached.

Status: Corrected with version 14.2.

Graphing in Engine and ECT will cause Techstream to disconnect from vehicle

Vehicle(s): 2014-2017 Corolla

Description: While displaying or recording a graph in the Engine and ECT ecu, the Techstream will show that it has "Lost communication with the vehicle." This disconnection occurs while graphing from a Custom List or pre-configured list such as the "JSD Test Drive" list.

Status: Corrected with VIM firmware v1.2.10.

Custom Data List in Engine and ECT Live fails when attempting to graph

Vehicle(s): 2015-2017 RX350/ES350.

Description: When graphing a Custom Data List in Engine and ECT Live an error box pops up stating "Lost communication with vehicle".

Status: Corrected with VIM firmware v1.2.10 (1200-002).

Health Check on DCM equipped vehicles results in "Fault 64" message

Vehicle(s): DCM Equipped Vehicles (with Techstream v13.20.018 and later)

Description: Before Health Check completes, a message appears that the Telematics DCM is not recognized by telematics provider with instructions to be completed. After performing instructions, the next Health Check results in the same message.

Status: Corrected with version 13.3 (1320-001).

Primary Data List refresh rate is abnormal

Vehicle(s): LS500/H.

Description: While viewing Engine Primary Data List, slow refresh rates can cause the data to not update as vehicle events occur.

Status: Corrected with v13.3 (1300-007).

Smart Code Reset Utility prompt out of sequence

Vehicle(s): 2018+ LS500/H, 2019 Avalon/Avalon HV

Description: Smart Code Reset prompt suggests a 16-minute wait will begin by pressing yes. Further steps are needed to reach the 16-minute waiting period.

Status: Corrected with v13.3 (1300-006).

Key Registration Utility is missing

Vehicle(s): 2016-2017 Avanza.

Description: The Key Registration Utility is missing from the Utility list in IMB Live.

Status: Corrected with v13.3 (1300-004).

Remote Door Lock Setting Utility is missing

Vehicle(s): 2018 Camry (US models).

Description: The utility "Remote Door Lock Setting" is missing.

Status: Corrected with v13.2 (1300-002).

Occupant Detection Zero Point Calibration Fails

Vehicle(s): 2015-2017 ES350.

Description: Occupant Detection Zero Point Calibration fails after lowering seat bottom to bottom position and clicking "NEXT".

Status: Corrected with v13.3 (1200-009).

Multiple command controls inoperable in Engine Active Test

Vehicle(s): 2015-2017 NX200t.

Description: Several "Active Test" command buttons are inoperable.

Status: Corrected with v13.3 (1220-003).

Air Bleed Utility encounters an error when clicking Next

Vehicle(s): 2015-2017 Camry Hybrid and CT200h.

Description: Even though all preconditions were met, clicking Next results in error of "Lost Communication with Vehicle".

Status: Corrected with v13.1 (1200-001).

Health Check won't complete or unable to load Techstream Registration Page

Vehicle(s): n/a

Description: Techstream defaults to "Corporate" user when installing/updating Techstream. The default should be "US Dealer 1". A telltale sign of the wrong user type for Dealers are missing features (i.e. Customer Friendly Health Check).

Status: Corrected with v 13.1 (1130-001).

Health Check results in Java Error (UnmarshalException)

Vehicle(s): Sienna and other models

Description: Some vehicles receive a Java Error before Health Check completes which prevents further progress.

Status: Corrected with v13.0 (1000-004, 1210-004).

Evaporative System Check Utility Fails

Vehicle(s): 2014 Corolla & 2015-2017 LX570.

Description: Utility fails after running the engine for a few minutes although all preconditions are met.

Work Around: Turn vehicle IG OFF for 5 minutes, exit Techstream and restart, then retry Utility. This process will only work for one key cycle. If the utility fails, it requires another IG OFF process to perform a second system check.

Status: Corrected with v13.3 (1000-005).

End