DESCRIPTION
This DTC is stored when a malfunction occurs in the headlight ECU sub-assembly LH IG power source circuit. The headlight ECU sub-assembly LH stores DTC B242E.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
B242E |
Open in IG Circuit |
Open in the headlight ECU sub-assembly LH IG power source circuit |
|
- |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
CLEAR DTC |
(a) Clear the DTCs.
Click here
|
2. |
CHECK FOR DTC |
(a) Turn the ignition switch to ON.
(b) Check for DTCs.
Click here
OK:
DTC B242E is not output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK
|
|
3. |
CHECK HARNESS AND CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY LH - POWER SOURCE AND BODY GROUND) |
(a) Disconnect the A16 headlight ECU sub-assembly LH connector.
(b) Measure the voltage according to the value(s) in the table 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 |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A16-12 (GND) - Body ground |
Always |
Below 1 Ω |
OK | ![]() |
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Toyota CH-R Service Manual > Vehicle Stability Control System: Open in Stop Light Switch Circuit (C1249)
DESCRIPTION
The skid control ECU (brake actuator assembly) receives stop light switch signals
and uses them to determine whether or not the brakes are applied. DTCs may be stored
if either of the following occurs:
Stop light switch stuck on malfunction.
The accelerator and brake ped ...
Toyota CH-R Service Manual > Wireless Door Lock Control System(w/ Smart Key System): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
The wireless door lock control system troubleshooting procedure is based
on the premise that the power door lock control system is operating properly.
Check the power door lock control system first before troubleshooting the
wireless door lock cont ...