Toyota Venza: HL AutoLeveling ECU Failure (B2420)
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
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).
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
OK:
DTC B2420 is not output.
| OK | .gif) |
USE SIMULATION METHOD TO CHECK |
| NG | |
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY |
Initialization has not been Performed (B2450)
DESCRIPTION
The headlight leveling ECU assembly stores this DTC if initialization has not
been performed after the ECU was replaced.
DTC No.
DTC Detecting Condition
...
Rear Height Control Sensor (B241A)
DESCRIPTION
The headlight leveling ECU assembly receives signals indicating the height of
the vehicle from the rear height control sensor sub-assembly RH.
DTC No.
DTC Detecti ...
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PROCEDURE
1.
CHECK AUDIO SETTINGS
(a) Set treble, middle and bass to the initial values and check that the sound
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OK:
The sound returns to normal.
HINT:
Sound quality adjustment measures vary according to the ...
Indicator Circuit
DESCRIPTION
The headlight beam level control system indicator light in the combination meter
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DESCRIPTION
The skid control ECU (housed in the actuator assembly) inputs the stop light
switch signal and the condition of brake operation.
The skid control ECU has an open detection circuit, which outputs this DTC when
detecting an open in the stop lig ...
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