ACURA CSX 2006 Service Repair Manual

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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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µ
11-61
BIAT
SENSOR
MAF
SENSOR
1
B30
VG RED/BLK
2
B32
VG BLK/BLU
B33
SG2 GRN/BLK BLK/YEL
3
GRN/BLK 4
RED/YEL 5
B31
IAT RED/YEL
ECT SENSOR 1
GRN/BLK
2
RED/WHT 1
B23
ECT1 RED/WHT D
B36
PG1 BLK
B1
PG2
BLK
C2
PGMETCS BLK
G101
C40
LG1 BRN/YEL
C44
LG2 BRN/YEL
G101C
FG
E
18
19
20 BRN
BRN
12 10 9 11
BRN/YELC101
24P JUNCTION
CONNECTOR
AA AB
21
BRN/YEL
BRN/YEL 6
5
(cont’d)
08/08/21 14:15:27 61SNR030_110_0061
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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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µ
11-63
A/F SENSOR
(SENSOR 1)
2
RED
C29
AFS RED
C30
AFS RED/YEL
C9
AFSHTC 1
RED/BLU
3
BLU
4
L
10
SECONDARY
HO2S
(SENSOR 2)
2
1
3
4
C27
SHO2S
B4
SO2SHTC E
K
F
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
APP SENSOR A/BTHROTTLE
ACTUATOR
23
18
BLK/WHT 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
GRN
PUR
M
WHT/GRN
1(5)*8BLK
YEL
C101
C209
AB
A
B
TP SENSOR
C101 THROTTLE BODY
WHT
PNK
BLU/RED
GRN/YEL
14
15
19
1
6 3 (2) *8
2 (6) *8BRN
PNK WHT
*8: ’09 model
(cont’d)
08/08/21 14:15:28 61SNR030_110_0063
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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
11-65
RED
A42
WEN
WHT
A36
CANH
RED
A37
CANL
BLU
A29
VSSOUT 10
RED
11
BLK
7
WHT
14
RED
5
BLU
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
T
SR
6P
JUNCTION
CONNECTOR C201
BRN
5
7
9
14 6
12 16
4
BLK
191
JUNCTION BOX
G
SRS UNIT REDWHT 14
15
6P
JUNCTION
CONNECTOR
3265
1 15
EPS CONTROL UNIT
VSA MODULATOR-
CONTROL UNIT
YAW RATE-LATERAL
ACCELERATION SENSOR 12P
JUNCTION
CONNECTOR
14
3265
1 4
5 610
11
412 8
14 15 20
3
4 RED WHT
7
13 14
12
11
12
11
12
1
15
CANL
CANH
CANL
CANH
CANL CANH
CANL CANH WHT RED
To MOONROOF
CONTROL
UNIT/MOTOR To AUDIO UNIT
WHTRED 9
10
11 2
CANL CANH
TPMS
CONTROL
UNIT
DATA
LINK
CONNECTOR
GAUGE CONTROL
MODULE (TACH)
C501
CANHCANL
G502
*7
*7: ’07-08 models
(cont’d)
08/08/21 14:15:30 61SNR030_110_0065
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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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Î
11-67
ETCS
CONTROL
RELAY
A/C COMPRESSOR
CLUTCH RELAY
ELD BATTERY
UNDER-HOOD FUSE/RELAY BOX
WHT H1
BRN D1
ORN D4
WHT D8
YEL A1
ORN A3
BLK A2
G301 GRY
PUR E6
BLU E7
ORN
E5 E1
LT BLU
C1
IG1ETCS 21
C101
WHT K
J
A23
ELD Q RED
F20
PUR
F19
F16 F14
GRN
F9
F7
ORN
F6
YEL
F5
A14
ACC A21
SUBRLY A5
FANH A6
MRLY A4
FANL A8
IGP A20
ETCSRLY
ORN I
U
Y Z
XW
V N
PGM-FI
SUBRELAYPGM-FI
MAIN
RELAY 1
IGNITION
COIL
RELAYA/C
CONDENSER
FAN RELAY
COOLING
FAN
CONTROL
RELAY
RADIATOR
FAN RELAY
G1
9
10
ORN
ORN C101
YEL/BLK
A
PURPNK
15
3
(cont’d)
08/08/21 14:15:31 61SNR030_110_0067
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