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
Body Electrical > HL AutoLeveling > Clear DTCs
|
2. |
CHECK FOR DTC |
(a) Turn the ignition switch to ON.
(b) Check for DTCs.
Click here
Body Electrical > HL AutoLeveling > Trouble CodesOK:
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 |
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