DESCRIPTION
When the headlight leveling ECU assembly detects a malfunction in itself, this DTC is stored.
DTC No. |
DTC Detecting Condition |
Trouble Area |
---|---|---|
B2420 |
Malfunction of headlight leveling ECU assembly |
Headlight leveling ECU assembly |
CAUTION / NOTICE / HINT
NOTICE:
If the headlight leveling ECU assembly has been replaced, initialization of the
headlight leveling ECU assembly is necessary (See page
).
PROCEDURE
1. |
CHECK FOR DTC |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
OK:
DTC B2420 is not output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK |
NG | ![]() |
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY |
ECU Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, voltage from the ECM's MREL terminal
is applied to the EFI MAIN relay. This causes the contacts of the EFI MAIN relay
to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM
PR ...
Power Management Control ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Power Management Control ECU Communication Stop Mode
"Electric Power Control" is not displayed on the CAN Bus Check
screen ...
Front Airbag Sensor LH Malfunction (B1615/14)
DESCRIPTION
The front airbag sensor LH circuit consists of the center airbag sensor assembly
and front airbag sensor LH.
The front airbag sensor LH detects impacts to the vehicle and sends signals to
the center airbag sensor assembly to determine if the ...