DESCRIPTION
This DTC is stored when the main body ECU (multiplex network body ECU) detects malfunctions in the automatic high beam system.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
B124B |
Automatic High Beam System |
Malfunction in automatic high beam system |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
HINT:
If the forward recognition camera stores a DTC for a malfunction of any of the following, this DTC will be stored simultaneously.PROCEDURE
1. |
CHECK FOR DTC (HEALTH CHECK) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: System Select / Health Check.
(e) Check for DTCs.
Result |
Proceed to |
---|---|
Only DTC B124B is output |
A |
DTC B124B and other DTCs are output |
B |
B |
GO TO OTHER DTC CHART |
|
2. |
CHECK FORWARD RECOGNITION CAMERA SYSTEM |
(a) Check if a dynamic radar cruise control system, lane departure alert system and pre-collision system warning message is displayed on the combination meter assembly.
Click here
OK:
No dynamic radar cruise control system, lane departure alert system and pre-collision system warning messages are displayed.
OK |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG |
GO TO FORWARD RECOGNITION CAMERA SYSTEM |
Toyota CH-R Service Manual > Immobiliser System(w/o Smart Key System): Dtc Check / Clear
DTC CHECK / CLEAR
CHECK FOR TRANSPONDER KEY ECU ASSEMBLY DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Immobiliser / Trouble Codes.
Body Electrical > Immobiliser > Trouble Codes ...
Toyota CH-R Service Manual > Main Body Ecu: Installation
INSTALLATION
PROCEDURE
1. INSTALL MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
NOTICE:
Make sure that the connecting surfaces are free of foreign matter.
Do not touch the main body ECU (multiplex network body ECU) connector.
(a) Set the main body ECU (multiplex network bod ...