Mazda CX-9 2007 - Ignition Coil Construction;Operation [Mzi-3.5]; Construction; Operation; Ignition System [Mzi-3.5]

IGNITION SYSTEM [MZI-3.5]
01-18–2
IGNITION COIL CONSTRUCTION/OPERATION [MZI-3.5]
id0118c1100300
Construction
• Direct ignition coils installed directly to each spark plug have been adopted. By adopting direct ignition coils,
high-tension leads have been eliminated in order to simplify the parts of the ignition system, preventing voltage
reduction, and improving the firing efficiency.
• Independent firing control has been adopted to eliminate firing without spark, increasing firing energy.
• The direct ignition coil consists of an ignition coil, ignition coil connector, and boot area, which has the same
function as the current high-tension lead.
Operation
• The firing timing of the coil is controlled by the PCM by means of a built-in igniter for optimum ignition timing
control.
Terminal layout
End Of Sie
NG: SPARK PLUG
Terminal Signal
A Power supply
C Ignition coil control signal
C
A
C
A
C
A
C
A
C
A
C
A
IGNITION COIL ELECTRICAL SYSTEM WIRING DIAGRAMIGNITION COIL EXTERNAL VIEW
IGNITION
COIL
BOOT
IGNITION
COIL
CYLINDER
NUMBER
NO.6
NO.5
NO.4
NO.3
NO.2
NO.1
PCM
MAIN
RELAY
CONDENSER
CONDENSER
A
C
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