Toyota CH-R Service Manual > Lighting System: Lost Communication With Headlamp Control Module "B" (U0242)
DESCRIPTION
The headlight ECU sub-assembly LH stores this DTC when the headlight ECU sub-assembly
RH detects an internal malfunction or if a communication malfunction occurs between
headlight ECU sub-assembly LH and headlight ECU sub-assembly RH for 10 seconds or
more.
DTC No.
...
Toyota CH-R Service Manual > Tire Pressure Warning System: Tire Pressure Monitor Receiver Communication Stop (B1247)
DESCRIPTION
The main body ECU (multiplex network body ECU) and tire pressure warning ECU
and receiver are connected using 2 direct lines that they use to communicate with
each other.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...