HAIMA 7 - Page 549

10
Engine control system (484Q)
Combination
instrument
Coolant
temperature
sensor
Mass airflow sensor
Electronic throttle body
Accelerat
or pedal
Main relay
Ignition coil 1
Main relay
Ignition coil 2 Ignition coil 3 Ignition coil 4
Knock sensor
Ignition coil 1 (EM)
Ignition coil 2 (EM) Ignition coil 3 (EM)
Ignition coil 4 (EM)
Coolant temperature
sensor (EM)
Knock sensor (EM)
Accelerator pedal
(EM)
Electronic throttle body
(EM)
Mass airflow sensor
(EM)
Headlight relay
High-speed cooling fan relay
Low-
speed cooling fan relay