DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message [11/2016 - ]: Procedure
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC OUTPUT (DTC U0125-87, U0129-87 OR U1103-87)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: System Select / Health Check.
- Read the DTCs using the Techstream.
Result Proceed to DTC U1103-87 is output A DTC U1103-87 and other DTCs are output B HINT:
If any DTCs other than U1103-87 are output, troubleshoot those DTCs first.
Result:
A
GO TO CAN COMMUNICATION SYSTEM.
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ]
Result:
B
GO TO DTC CHART