DESCRIPTION
These DTCs are stored if the headlight ECU sub-assembly LH or RH detects an internal malfunction. The headlight ECU sub-assembly LH stores DTC B242C or B242D.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
B242C |
Right Headlight ECU Malfunction |
An internal malfunction occurs in the headlight ECU sub-assembly RH |
Headlight ECU sub-assembly RH |
- |
B242D |
Left Headlight ECU Malfunction |
An internal malfunction occurs in the headlight ECU sub-assembly LH |
Headlight ECU sub-assembly LH |
- |
CAUTION / NOTICE / HINT
NOTICE:
After the headlight ECU sub-assembly LH is replaced, vehicle information registration and initialization are necessary.
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 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 HEADLIGHT ECU SUB-ASSEMBLY RH |
C | ![]() |
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
Toyota CH-R Service Manual > Smart Key System(for Entry Function): Open in Inside Luggage Compartment Electrical Key Oscillator Circuit (B27A7)
DESCRIPTION
The certification ECU (smart key ECU assembly) generates a request signal and
transmits the signal to the No. 3 indoor electrical key antenna assembly (inside
luggage compartment). For the No. 3 indoor electrical key antenna assembly (inside
luggage compartment) to detect when the ...
Toyota CH-R Service Manual > Lighting System: Ambient Illumination Light Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) controls the ambient illumination
lights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the lights for circuits related to this system before performing
the following procedure.
Before replacing the main ECU ...