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 |
Open or Short Circuit in ABS Motor Relay Circuit (C0273/13)
DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated,
the ECU turns the motor relay on and operates the ABS pump motor.
If the voltage supplied to the motor relay (+BM) is below the DTCs detection
threshold due ...
Door Courtesy Switch Circuit
DESCRIPTION
The main body ECU (driver side junction block assembly) detects the condition
of the door courtesy light switch.
WIRING DIAGRAM
PROCEDURE
1.
READ VALUE USING TECHSTREAM
(a) Connect the Techstream to the DLC3 ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT SEATBACK HEATER LH
(a) Apply battery voltage and check the seatback heater.
OK:
Measurement Connection
Condition
Specified Condition
...