DTC List (Headlight Automatic Leveling Control)

DTC
DTC title
Condition for running the DTC
Condition for setting the DTC
Action taken when DTC sets
B1037[11]
DTC B1037[11] (Flash Code 43) Leveling Power Supply "Circuit Short to Ground"
・The ignition switch is ON.
・The headlight leveling actuator ON signal is output.
・The headlight auto leveling control unit detects that the headlight leveling actuator power supply voltage is low.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
B1037[12]
DTC B1037[12] (Flash Code 44) Leveling Power Supply "Circuit Short to Battery"
・The ignition switch is ON.
・The headlight leveling actuators are OFF.
・The headlight auto leveling control unit detects that the headlight leveling actuator power supply voltage is high for 5 seconds or more.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
B1037[15]
DTC B1037[15] (Flash Code 51) +B Power Shutdown Circuit Failure
・The ignition switch is ON.
・The headlight auto leveling control unit detects that the battery power cannot be cut off.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
B1037[44]
DTC B1037[44] (Flash Code 52) +B Power Supply Latch Error (Data Error Detection)
・The ignition switch is ON.
・The headlight auto leveling control unit detects an error in the stored data.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
B1037[49]
DTC B1037[49] (Flash Code 54) Internal Failure of ECU
・The ignition switch is ON.
・The headlight auto leveling control unit detects any abnormal conditions of the internal microprocessor.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
B1037[54]
DTC B1037[54] (Flash Code 23) Vehicle Reference Position Not Initialized
・The ignition switch is ON.
・The headlight auto leveling control unit detects that initialization of the vehicle height values is not performed.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light flashes.
B1103[04]
DTC B1103[04] (Flash Code 24) G Sensor Failure
・The ignition switch is ON.
・The headlight auto leveling control unit detects a malfunction in the G sensor for 10 seconds or more.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
C0040[81]
DTC C0040[81] (Flash Code 32) Brake Switch Failure
・The ignition switch is ON.
・The headlight auto leveling control unit detects an error in the stoplight switch data received from the ECM for 2 seconds or more.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
P0500[81]
DTC P0500[81] (Flash Code 35) Vehicle Speed Sensor "A" Failure
・The ignition switch is ON.
・The headlight auto leveling control unit detects an error in the wheel speed data received from the EHCU for 2 seconds or more.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
U0100[00]
DTC U0100[00] (Flash Code 31)Lost Communication With ECM for Brake Signal
・The ignition switch is ON.
・The headlight auto leveling control unit detects that the control information cannot be received from the ECM for 2 seconds or more.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
U0121[00]
DTC U0121[00] (Flash Code 34) Lost Communication With Anti-Lock Brake System (ABS) Control Module
・The ignition switch is ON.
・The headlight auto leveling control unit detects that the control information cannot be received from the EHCU for 2 seconds or more.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.
U0140[00]
DTC U0140[00] (Flash Code 33) Lost Communication With BCM
・The ignition switch is ON.
・The headlight auto leveling control unit detects that the control information cannot be received from the BCM for 2 seconds or more.
・The headlight leveling actuator drive is stopped.
・The headlight automatic leveling warning light illuminates.