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IGNITION SYSTEM
Circuit Schematic
20
CB-2
IG COIL
15A
BLK/ORN
DASH
FUSE
BOX
H-4
1
H-18
7
BLK/ORN
BLK/ORN
NO. 3
IGNITION
COIL
3
2
E-39
1
E-39
NO. 5
IGNITION
COIL
C-2
RED/YEL
BLK/ORN
BLK
HOT IN ON OR START
D5
RED/YEL
8
H-5
Ignition
coil No. 1
control
(IGN coil 1)
Ignition
coil No. 3
control
(IGN coil 3)
Ignition
coil No. 5
control
(IGN coil 5)
E-30
See Ground
Distribution,
page 14-5
3
2
E-38
1
E-38
RED/BLU
BLK/ORN
BLK
D6
RED/BLU
2
3
2
E-37
1
E-37
NO. 1
IGNITION
COIL
RED
BLK/ORN
BLK
C4
RED
4
Igniter
Igniter
Igniter
BLK/
BLU
BLK
BLK
BLK
NO. 2
IGNITION
COIL
NO. 6
IGNITION
COIL
IGNITION SYSTEM
Circuit Schematic
20-1
POWERTRAIN
CONTROL
MODULE
(PCM)
Solid State:
Do not check
resistance.
E-45
CONDENSER
BLK
BLK/
ORN
NO. 4
IGNITION
COIL
2
E-42
RED/GRN
BLK/ORN
RED/GRN
2
E-41
RED/WHT
BLK/ORN
RED/WHT
2
E-40
RED/BLK
BLK/ORN
RED/BLK
3
1
E-42
C-1
BLK
B4
7
H-5
Ignition
coil No. 2
control
(IGN coil 2)
Ignition
coil No. 4
control
(IGN coil 4)
Ignition
coil No. 6
control
(IGN coil 6)
E-28
See Ground
Distribution,
page 14-4
3
1
E-41
BLK
B2
1
3
1
E-40
BLK
B3
3
Igniter
Igniter
Igniter
BLK
BLK
IGNITION SYSTEM
20-2
(Refer to Section 201 for photographs.)
Component
Photo No.
Condenser
Top right front of engine
29
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dash Fuse Box
Behind left I/P side trim panel
36
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No. 1 Ignition Coil
Right side of engine
31
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No. 2 Ignition Coil
Left side of engine
27
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No. 3 Ignition Coil
Right side of engine
31
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No. 4 Ignition Coil
Left side of engine
27
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No. 5 Ignition Coil
Right side of engine
31
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No. 6 Ignition Coil
Left side of engine
27
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Powertrain Control Module
(PCM)
Behind front console
52
. . . . . . . . . . . . . . . . . . .
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Connector
E-45 (1-BLK)
Top right front of engine
29
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-4 (16-BLU)
Left rear of engine compartment on bracket
15
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-5 (16-GRN)
Left rear of engine compartment on bracket
15
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-18 (20-WHT)
Behind I/P right side panel
58
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ground
E-28
Top left rear of engine
28
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E-30
Top right rear of engine
32
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Component Location Index
Circuit Operation
With the starter switch in ON or START, battery volt-
age is applied to the Powertrain Control Module
(PCM), various engine sensors, and the ignition coils.
When the engine is cranked to start, the crank shaft
position (CKP) sensor sends timing information direct-
ly to the PCM, which breaks the ground path in the pri-
mary of the ignition coils, thus creating a high voltage
secondary impulse which fires the spark plugs, and the
engine starts. The PCM receives information such as
firing order and starting timing at each ignition coil from
the CKP sensor. The PCM relies on information from
various engine sensors to determine correct ignition
timing.
STARTING SYSTEM
Component Index
Anti-theft and Keyless Entry Control Unit
Automatic Transmission Mode Switch
Dash Fuse Box
Fuse/Relay Box
Starter
Starter Relay
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