Footwell Light Circuit [02/2017 - 09/2019]: Procedure
WARNING: This page is about a different car, the 2019 Toyota C-HR and 2018 Toyota C-HR. However, it is still accessible from the selected car via links, so may be relevant.
- PERFORM ACTIVE TEST USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Main Body / Active Test.
- Perform the Active Test according to the display on the Techstream.
Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note Side Mirror Foot Light Door mirror foot lights ON or OFF - Body Electrical > Main Body > Active Test
Tester Display Side Mirror Foot Light OK
Door mirror foot lights illuminate.
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [02/2017 - 10/2017] , or refer to PROBLEM SYMPTOMS TABLE [10/2017 - 09/2019]
Result:
NG
See step 2
- CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH OR RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
- Disconnect the J7 outer rear view mirror assembly LH.
- Disconnect the I8 outer rear view mirror assembly RH.
- Disconnect the F16 main body ECU (multiplex network body ECU) connector.
- Measure the resistance according to the value(s) in the chart below.
Standard Resistance
Tester Connection Condition Specified Condition J-7 (MLP) or I8-7 (MLP) - F16-4 (MILE) Always Below 1 Ω I8-3 (MLP) or F16-4 (MILE) - Body ground Always 10 kΩ or higher J7-3 (MLP) or F16-4 (MILE) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to REMOVAL [02/2017 - 10/2017] , or refer to REMOVAL [10/2017 - 08/2020]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR