RM36D0EC _58 Vehicle Interior _083101 PRE-COLLISION _0401880 PRE-COLLISION SYSTEM C

PRE-COLLISION  PRE-COLLISION SYSTEM  U041881  Invalid Data Received from Brake System Control Module Invalid Serial Data Received  


DESCRIPTION

for HV Model:
·

The forward recognition camera receives signals from the No. 2 skid control ECU (brake actuator assembly) corresponding to the brake control status via the CAN communication line.

·

When a brake control system malfunction signal is received from the No. 2 skid control ECU (brake actuator assembly), the forward recognition camera outputs U041881.


for Gasoline Model:
·

The forward recognition camera receives signals from the skid control ECU (brake actuator assembly) corresponding to the brake control status via the CAN communication line.

·

When a brake control system malfunction signal is received from the skid control ECU (brake actuator assembly), the forward recognition camera outputs U041881.


DTC No. Detection Item DTC Detection Condition Trouble Area
U041881 Invalid Data Received from Brake System Control Module Invalid Serial Data Received
for HV Model:

Once 3 seconds elapse after turning the ignition switch to ON, the forward recognition camera receives a brake control system malfunction signal from the No. 2 skid control ECU (brake actuator assembly) for approximately 1 second or more.


for Gasoline Model:

Once 3 seconds elapse after turning the ignition switch to ON, the forward recognition camera receives a brake control system malfunction signal from the skid control ECU (brake actuator assembly) for approximately 1 second or more.


for HV Model:
·

Forward recognition camera

·

No. 2 skid control ECU (brake actuator assembly)

·

Electronically controlled brake system


for Gasoline Model:
·

Forward recognition camera

·

Skid control ECU (brake actuator assembly)

·

Electronically controlled brake system



CAUTION / NOTICE / HINT

NOTICE:
·

When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

·


PROCEDURE

1.CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM
a.

Check the DTCs.

for HV Model:

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model)>DTC CHECK / CLEAR

for Gasoline Model:

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Chassis > Brake/EPB > Trouble Codes
50001 435
OK:

Electronically controlled brake system DTCs are not output.


HINT:

If U041881 is output in the pre-collision system, electronically controlled brake system DTCs may also have been output. Check the electronically controlled brake system first.



Result:
Proceed to
OK
NG



OK

NG