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 ...
Other materials about Toyota Venza:
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Line
Main body ECU (Driver side junction block assembly)
Power back door ECU (Power back door motor unit)
...
Precaution
PRECAUTION
1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following system(s) after the cable is reconnected.
System Name
...
Operation Check
OPERATION CHECK
1. CHECK POWER SEAT FUNCTION
(a) Check the basic functions.
(1) Operate the power seat switches and check to make sure each seat function
work:
Sliding
Front vertical (Driver side only)
Lumbar support
Lifter (Driver s ...
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