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 > Blind Spot Monitor System: Lost Communication with Blind Spot Monitor Slave Module (U0232)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor LH (Master) judges that
there is a communication problem with the blind spot monitor sensor RH (Slave).
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U0232 ...
Toyota CH-R Service Manual > Blind Spot Monitor System: System Description
SYSTEM DESCRIPTION
GENERAL
(a) The blind spot monitor system has a blind spot monitor function and RCTA
function.
(1) Blind spot monitor function
The blind spot monitor function is a function that assists the driver
when changing lanes.
This function uses quasi-millimeter wave ra ...