Controlled Area Network Board

below is picture of the board i was working on:

using the duel trace feature on the oscilloscope i captured a full pattern on the high CAN and low CAN:

the top pattern is the high CAN and the bottom pattern is the low CAN.
the base voltage is 2.5V as the high CAN goes above the base voltage, the low CAN goes the same voltage below 2.5V.

for each of the following inputs i captured a pattern for them.

right indicator:

left indicator:

stop lights:

reverse lights:

all of these patterns are different from eachother because the CAN system sends out a different signal for each individual application. the signal works by sending a serial number made up of zeros and ones, this can be read to make a signal if you know how to analyze it.

in the below wiring diagram i was asked to identify the input and output pins, wire colours and relay transistor for the rear wiper and the indicator: