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).
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