DTC B242E: Open in IG Circuit [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 B242E is not output.
Result
Proceed to OK NG
Result:
OK
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:
NG
See step 3
- CHECK HARNESS AND CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY LH - POWER SOURCE AND BODY GROUND)
- Disconnect the A16 headlight ECU sub-assembly LH connector.
- Measure the voltage according to the value(s) in the chart below.
Standard Voltage
Tester Connection Switch Condition Specified Condition A16-4 (IG) - Body ground Ignition switch off Below 1 V A16-4 (IG) - Body ground Ignition switch ON 11 to 14 V - Measure the resistance according to the value(s) in the chart below.
Standard Resistance
Tester Connection Condition Specified Condition A16-12 (GND) - Body ground Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to REMOVAL [10/2017 - 09/2019]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR