Notes of the relay wiring
The relay wiring of pump: oil connectors of both ends are a fine white line (85)
and a fine yellow line (86). The fine white line (85) is connected to vehicle
positive power (+12V). The fine yellow line is connected to the device relay
control line.
Cut off the positive connection line of the pump; then connect in series to the
relay N.C. contact (thick green line 87a) and the other end to relay COM
contact (thick green line 30).