Volvo ECS User Manual

47
ECS Gen. 1
ECU power
supply relay
- 3019B
When the ignition is switched on, a wake-up signal is sent
to ECU pin (22).
The ECU switches a negative to relay pin (85) via ECU pin
(12).
Because fuse F12 is supplying voltage to relay pin (30) and
- by link - to pin (86), the relay is energised.
Pins (30) and (87) are now connected.
Voltage from fuse F12 can now pass through the relay to
ECU pin (1).

Volvo ECS Specifications

General

Brand	Volvo
Model	ECS
Category	Automobile Electronics
Language	English