DTC B1037[49] (Flash Code 54) Internal Failure of ECU (Headlight Automatic Leveling Control)

1. Headlight auto leveling control unit general circuit diagram

2. Headlight auto leveling control unit outline view and connector pin layout

No.
Pin Function
1
Battery voltage
2
Ground
3
Ignition voltage
4
-
5
-
6
Headlight leveling actuator (RH) and Headlight leveling actuator (LH) 12V reference
7
Headlight leveling actuator (RH) and Headlight leveling actuator (LH) ground
8
-
9
Headlight leveling actuator (RH) and Headlight leveling actuator (LH) signal
10
Initialization signal
11
-
12
-
13
-
14
-
15
CAN high signal
16
CAN low signal