diagram ACURA CSX 2006 Service Owner's Manual

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ECM/PCM Circuit Diagram (K20Z2 engine) (cont’d)
11-52 Fuel and Emissions Systems
System Description (cont’d)
A/F SENSOR
(SENSOR 1)
2
RED
C29
AFS RED
C30
AFS RED/YEL
C9
AFSHTC 1
RED/BLU
3
BLU
4
Q
10
C101
SECONDARY
HO2S
(SENSOR 2)
3
4
C27
SHO2S
B4
SO2SHTC H
P
I
OIL PRESSURE
SWITCH
B7
OPSW
YEL/RED
A25 1
3
BRN
VCC4
A17 1
YEL
APSA
A35 2
BLU
SG4
A24 6
GRY
VCC5
A18 4
PUR
APSB
A34 5
LT BLU
SG5 9
5 THROTTLE
ACTUATOR
1 6
WHT/RED 2
13
4
6
5
BLU
RED/BLK RED/BLK
GRN RED/BLU
BLU/RED GRN/YEL
C4
ETCSM
C3
ETCSM C39
SG3 C21
TPSB
C12
VCC3
C20
TPSA
GRN BLU
GRNPUR
R
WHT/GRN
3 (2) *81 (5) *8
2 (6) *8 BLK
YEL
C209
AB
1 2
THROTTLE BODY
APP SENSOR A/B
BLK/WHT
WHT
PNK TP SENSOR
AB
BRN
PNK WHT
BLU/RED
GRN/YEL
14
15
19
23
18
*8: ’09 model
08/08/21 14:13:49 61SNR030_110_0052
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Î
ECM/PCM Circuit Diagram (K20Z2 engine) (cont’d)
11-54Fuel and Emissions Systems
System Description (cont’d)
RED
A42
WEN
WHT
A36
CANH
RED
A37
CANL
BLU
A29
VSSOUT 10
11 7
14 5
10
WHT
9
RED
5
WHT
10
BLK
4
RED
7
WHT
6
RED
8
ORN
9
LT BLU
2
2
BLU
7
ORN
4
LT BLU
8
WHT
BLU
YXW
6P
JUNCTION
CONNECTOR
7
13 14 12
11
C201
BRN
BRN
To MOONROOF
CONTROL
UNIT/MOTOR To AUDIO UNIT
DATA
LINK
CONNECTOR
5
7
9
14
6
12
16 4
BLK
G502
GAUGE CONTROL
MODULE (TACH)
19
1
JUNCTION BOX
J
RED
WHT
2
1
6P
JUNCTION
CONNECTOR
3265
3265
14
14
1 15
11
12
1
17
EPS CONTROL
UNIT
SRS UNIT
ABS MODULATOR-
CONTROL UNIT RED
BLK
WHT RED
BLU
CANL
CANH
CANL CANH
CANL CANH
CANL
*5
CANH
*5: ’06-07 models
08/08/21 14:13:50 61SNR030_110_0054
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ÎECM/PCM Circuit Diagram (K20Z2 engine) (cont’d)
11-56Fuel and Emissions Systems
System Description (cont’d)
GAUGE CONTROL
MODULE (TACH)
RED
A42
WEN
WHT
A36
CANH
RED
A37
CANL
BLU
A29
VSSOUT 10
RED
11
BLK
7
WHT
14
RED
5
BLU
8
WHT
10
BLK
5
RED
7
WHT
6
RED
3
ORN
9
LT BLU
7
ORN
4
LT BLU
8
WHT
C201
BRN
DATA
LINK
CONNECTOR
5
7
9
14
6 12
16
4
BLK JUNCTION BOX
J
SRS UNIT RED
WHT 9
10
15
1
1
15
EPS CONTROL UNIT
VSA MODULATOR-
CONTROL UNIT
RED WHT
7
13
14
12 11
1
2
*8 2
2
BLU BLU
To MOONROOF
CONTROL UNIT/MOTOR To AUDIO UNIT 12P
JUNCTION
CONNECTOR
12 8 5 10
911
C501 RED
WHT
10
9
76
YX
W
YAW RATE-LATERAL
ACCELERATION SENSOR 3
4
TPMS CONTROL
UNIT 15
14
4
3
(1)*9
(2)*9
CANL
CANH
CANL CANH
11
12 CANH CANL
2
11 CANH CANL
CANH CANL
WHT RED19
1
G502
CANL
CANH
*8: ’09 model
*9: With Premium Audio
08/08/21 14:13:52 61SNR030_110_0056
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DYNOMITE -2009-

Î
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ECM/PCM Circuit Diagram (K20Z2 engine) (cont’d)
11-58Fuel and Emissions Systems
System Description (cont’d)
Z
C36 IG1
A44 S-NET5V
A15
IMOFPR
A31
SCS
A40
BKSW BLK/GRN
C101 2
MICU
V
PGM-FI MAIN
RELAY 2
(FUEL PUMP)
UNDER-DASH FUSE/RELAY BOX
F5
YEL
F8
PNK
F10
BRN
F11
BRN
F24
BRN
F25
LT GRN
F30
LT GRN
F31
WHT
F29
G2
ORN
G4
ORN
BRN
G16
WHT
G20
WHT
Q1
WHT
Q5
ORN
Q8
LT BLU
E9
GRN
E27
YEL
IG2
B IG1
D1
WHT
D2
BLU
C3
ORN
C1
YEL
3
AD
ST
AC
AB
O
ORN
AE
AA
YW
X
ST6
4
1
R
IGNITION SWITCH FUEL PUMPP
2
4
BLK E28
G601
IG1 HOT in ON (II)
and START (III) YEL
G12 STARTER
CUT RELAY
(ST CUT)
22
UNDER-HOOD FUSE/RELAY BOX: No. 21 DBW (THROTTLE
ACTUATOR CONTROL) (15 A) No. 18 IG COIL (15 A)
No.19FIMAIN(15A)
No.11FISUB(15A)
No.15OILLVL(7.5A)
No. 2 IG MAIN (50 A)
No. 23 BACK UP (10 A)
No.12STOP&HORN(15A)
No. 1 MAIN FUSE (100 A)
UNDER-DASH FUSE/RELAY BOX: No. 3 ALTERNATOR (10 A)
No. 2 FUEL PUMP (15 A)
No. 36 IG2 HAC (A/C) (10 A)
No. 10 METER (7.5 A)
08/08/21 14:13:53 61SNR030_110_0058
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ECM Circuit Diagram (K20Z3 engine)
11-59
No. 1 INJECTOR
No. 2 INJECTOR
No. 3 INJECTOR
No. 4 INJECTOR
YEL/BLK YEL/BLK YEL/BLK
YEL/BLK
CKP SENSOR
YEL/BLK
YEL/BLK
BRN/YEL
BRN/YEL 3
1 2
3
1 2
YEL
BLU
RED
BRN
YEL/BLK24P JUNCTION
CONNECTOR
CMP SENSOR B
A
BLU/YEL GRN
C8
C6
C7C5
C31
C32 INJ4
INJ2
INJ3INJ1
CMPB
CKP 18 20 19 24 23 22
21
ECM
H
BLU/WHT
CMP SENSOR A
BLK/YEL
BRN/YEL
C41
CMPA
AA
5V
3
1 2 1
2
1
2
1
2
1
2
(cont’d)
08/08/21 14:13:54 61SNR030_110_0059
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ECM Circuit Diagram (K20Z3 engine) (cont’d)
11-60Fuel and Emissions Systems
System Description (cont’d)
C22
BLU/BLK
BRN/YELROCKER ARM
OIL PRESSURE
SWITCH
MAP SENSOR
C13
C11
C14 YEL/RED
GRN/WHT
C23 BLU/WHT
C42
RED/BLU
KNOCK SENSOR1
1
GRN/RED
RED/BLU
C106
VTC OIL CONTROL
SOLENOID VALVE
B34
GRN/YEL
VTPSW VTS
VCC1
MAP
SG1
KS
VTC BLU/WHT
2
1
G101 1
10 YEL/RED
GRN/WHT GRN/RED
C B
3
2 2
3
G101 BLU/BLKROCKER ARM
OIL CONTROL
SOLENOID
1
GRN/YEL 2
2
B18
YEL
VCC2
C43 BLK/WHT
NC
GRN/BLK1
OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR
12 V
BLK
AB
BLK
08/08/21 14:13:54 61SNR030_110_0060
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ÎECM Circuit Diagram (K20Z3 engine) (cont’d)
11-62Fuel and Emissions Systems
System Description (cont’d)
EVAP CANISTER
PURGE VALVE
BLK/YEL
B3
IBLK/YEL
BLK/YEL
No. 1 IGNITION COILNo. 3 IGNITION COIL
C15
C16
C17
G101BLK BLK
BLK/WHT
BLK
ICM To
SPARK
PLUG
ICM
To
SPARK
PLUG
ICM
To
SPARK
PLUG
No. 2 IGNITION COIL
17
WHT/BLU BLU/RED No. 4 IGNITION COIL
C18
BLKICM To
SPARK
PLUG
24P JUNCTION
CONNECTOR
24P JUNCTION
CONNECTOR
BLK
J
BLK/
WHT BLK/YEL
B42
YEL/GRN BLK/WHT
BLK/WHT
BRN BLK/WHT
WHT/BLU
ALTERNATOR
1
1
3
YEL/BLU
BLK/YEL
D
WHT/BLU
C106
9
B43 WHT/RED WHT/RED
WHT/GRN
B41 WHT/GRN 4
6
1
3
5
YEL C101
7
2
34
2
8
6 7
BLK/YEL
WHT/BLU
WHT/RED
WHT/GRN
PCS
IGPLS1
IGPLS2
IGPLS3
IGPLS4 ALTL
ALTF ALTC H
WHT/BLU
BLU/RED YEL/GRN
BRN
BLU
8
C101
13
1415 16
1
2
3
1
2
3
1
2
3
1
2 YEL/BLU
REVERSE LOCKOUT
SOLENOID
GRN/BLK
1
2
BLK/YEL
A27
RVS
GRN 20
C101 2
4
15
16
08/08/21 14:15:27 61SNR030_110_0062
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ÎECM Circuit Diagram (K20Z3 engine) (cont’d)
11-64Fuel and Emissions Systems
System Description (cont’d)
ECT SENSOR 2
1
A33
ECT2
2
A9
SG6 GRN
BLK
A/C PRESSURE
SENSOR
1
A19
VCC6 RED
2
A16
ACPD LT GRN
3
BLK
1
FTP SENSOR
2
A26
FTP
3
BLK
1
A10
VSV LT GRN
LT GRN
EVAP CANISTER
VENT SHUT VALVE
2
PUR
A28
NEP BLU
To
EPS CONTROL UNIT
3
A39
BKSWNC BRN Brake pedal pressed: closed
Brake pedal released: open
Brake pedal pressed: open
Brake pedal released: closed
4
YEL 1
WHT 2
LT GRN 12
9
10
11 8
RED
BLK
PUR C204
O Q
P BRAKE PEDAL
POSITION SWITCH
N
LT BLU Clutch pedal pressed: open
Clutch pedal released: closed
CLUTCH PEDAL
POSITION SWITCH
A41
CRMTCLS L
BLK 3 2
G401 BLU
LT GRN
LT GRN RED BLK
08/08/21 14:15:29 61SNR030_110_0064
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Î
ECM Circuit Diagram (K20Z3 engine) (cont’d)
11-66Fuel and Emissions Systems
System Description (cont’d)
GAUGE CONTROL
MODULE (TACH)
RED
A42
WEN
WHT
A36
CANH
RED
A37
CANL
BLU
A29
VSSOUT 10
RED
11
BLK
7
WHT
14
RED
5
BLU
8
WHT
10
BLK
5
RED
7
WHT
6
RED
3
ORN
9
LT BLU
7
ORN
4
LT BLU
8
WHT
C201
BRN
DATA
LINK
CONNECTOR
5
7
9
14
6 12
16
4
BLK JUNCTION BOX
G
SRS UNIT RED
WHT 9
10
15
1
1
15
EPS CONTROL UNIT
VSA MODULATOR-
CONTROL UNIT
RED WHT
7
13
14
12 11
1
2
*8 2
2
BLU BLU
To MOONROOF
CONTROL UNIT/MOTOR To AUDIO UNIT 12P
JUNCTION
CONNECTOR
12 8 5 10
911
C501 RED
WHT
10
9
76
TS
R
YAW RATE-LATERAL
ACCELERATION SENSOR 3
4
TPMS CONTROL
UNIT 15
14
CANL
CANH
CANL CANH
11
12 CANH CANL
2
11 CANH CANL
CANH CANL
WHT RED19
1
G502
CANL
CANH
4
3
(1)*9
(2)*9
*8: ’09 model
*9: With Premium Audio
08/08/21 14:15:30 61SNR030_110_0066
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DYNOMITE -2009-

Î
´
ECM Circuit Diagram (K20Z3 engine) (cont’d)
11-68Fuel and Emissions Systems
System Description (cont’d)
PGM-FI MAIN
RELAY 2
(FUEL PUMP)
UNDER-DASH FUSE/RELAY BOX
STARTER
CUT RELAY
(ST CUT)
F5
YEL
F8
PNK
F10
BRN
F11
BRN
F24
F25
LT GRN
F30
LT GRN
F31
WHT
F29
G2
ORN
G4
ORN
G12
BRN
G16
WHT
G20
WHT
Q1
WHT
Q5
ORN
Q8
LT BLU
E9
GRN
E27
YEL
IG2
B IG1
D1
WHT
D2
BLU
C3
ORN
C1
YEL
3 UOPY
V
X
C36 IG1
A44 S-NET5V
A15 IMOFPR
A31
SCS
A40
BKSW
G401 BLK/GRN
C101 2
BLK
TRS
ST6
4
1
M
IGNITION SWITCH MICU
FUEL PUMP P
2
4
BLK
1
2
CLUTCH
INTERLOCK
SWITCH ZW
Clutch pedal pressed: closed
Clutch pedal released: open
IG1 HOT in ON (II)
and START (III)
ORN
G601BRN
22
UNDER-HOOD FUSE/RELAY BOX:
No. 21 DBW (THROTTLE
ACTUATOR CONTROL) (15 A) No. 18 IG COIL (15 A)
No.19FIMAIN(15A)
No.11FISUB(15A)
No.15OILLVL(7.5A)
No. 2 IG MAIN (50 A)
No. 23 BACK UP (10 A)
No.12STOP&HORN(15A)
No. 1 MAIN FUSE (100 A)
UNDER-DASH FUSE/RELAY BOX: No. 3 ALTERNATOR (10 A)
No. 2 FUEL PUMP (15 A)
No. 36 IG2 HAC (A/C) (10 A)
08/08/21 14:15:32 61SNR030_110_0068
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