DTC B242C: Right Headlight ECU Malfunction; DTC B242D: Left Headlight ECU Malfunction [10/2017 - 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.
- CLEAR DTC
- Clear the DTCs.
Refer to DTC CHECK / CLEAR [02/2017 - 09/2019]
Body Electrical > HL AutoLeveling > Clear DTCs
Result
Proceed to NEXT
Result:
NEXT
See step 2
- Clear the DTCs.
- CHECK FOR DTC
- Turn the ignition switch to ON.
- Check for DTCs.
Refer to DTC CHECK / CLEAR [02/2017 - 09/2019]
Body Electrical > HL AutoLeveling > Trouble Codes
OK
DTC B242C and B242D are not output.
Result
Result Proceed to OK A NG (DTC B242C is output) B NG (DTC B242D is output) C
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2017 - 05/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2018 - 09/2019]
Result:
B
REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to REMOVAL [10/2017 - 09/2019]
Result:
C
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to REMOVAL [10/2017 - 09/2019]