DESCRIPTION
The No. 1 headlight ECU sub-assembly LH stores a DTC if it detects an internal malfunction.
for Multiple Beam Headlight DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
---|---|---|---|---|
B242C | Right Headlight ECU Malfunction |
| No. 1 headlight ECU sub-assembly RH | AFS |
B242D | Left Headlight ECU Malfunction |
| No. 1 headlight ECU sub-assembly LH | AFS |
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
---|---|---|---|---|
B242C | Right Headlight ECU Malfunction |
| No. 1 headlight ECU sub-assembly RH | HL AutoLeveling |
B242D | Left Headlight ECU Malfunction |
| No. 1 headlight ECU sub-assembly LH | HL AutoLeveling |
CAUTION / NOTICE / HINT
NOTICE:
Click here
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PROCEDURE
1. | CONFIRM MODEL |
(a) Choose the model to be inspected.
Result | Proceed to |
---|---|
for Multiple Beam Headlight | A |
for Single Beam Headlight | B |
B | ![]() | GO TO STEP 4 |
|
2. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
|
3. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Wait for at least maximum 15 minutes.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(f) Check for DTCs.
Body Electrical > AFS > Trouble CodesOK:
DTC B242C and B242D are not output.
Result | Proceed to |
---|---|
OK | A |
NG (DTC B242C is output) | B |
NG (DTC B242D is output) | C |
A | ![]() | USE SIMULATION METHOD TO CHECK |
B | ![]() | REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH |
C | ![]() | REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH |
4. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > HL AutoLeveling > Clear DTCs
|
5. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Wait for at least maximum 15 minutes.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.
(f) Check for DTCs.
Body Electrical > HL AutoLeveling > Trouble CodesOK:
DTC B242C and B242D are not output.
Result | Proceed to |
---|---|
OK | A |
NG (DTC B242C is output) | B |
NG (DTC B242D is output) | C |
A | ![]() | USE SIMULATION METHOD TO CHECK |
B | ![]() | REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH |
C | ![]() | REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH |
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