2006 ACURA CSX alternator

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11-49
EVAP CANISTER
PURGE VALVE
BLK/YEL
B3
LBLK/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
M
BLK/
WHT BLK/YEL
B42
YEL/GRN BLK/WHT
BLK/WHT
BRN BLK/WHT
WHT/BLU
ALTERNATOR
1
1
3
YEL/BLU
BLK/YEL
G
WHT/BLU
9
B43 WHT/RED WHT/RED
WHT/GRN
B41 WHT/GRN 4
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 K
WHT/BLU
BLU/RED YEL/GRN
BRN
BLU
8 13
1415 16
1
2
3
1
2
3
1
2
3
1
2 YEL/BLU
2
BLK/YEL
C106
C101 15
16
(cont’d)
08/08/21 14:13:46 61SNR030_110_0049
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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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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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DYNOMITE -2009-

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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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µ
µ
µ
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µ
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YES
NO
YES
NO YES
NO
YES
NO
DTC P0102:
11-7511-75
13. Turn the ignition switch to LOCK (0).
14. Replace the MAF sensor/IAT sensor (see page
11-224).
15. Turn the ignition switch to ON (II).
16. Reset the ECM/PCM with the HDS.
17. Do the ECM/PCM idle learn procedure (see page 11-310).
18. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 MAP SENSOR
 MAF SENSOR
19. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the MAF sensor/IAT sensor and the
ECM/PCM, then go to step 1.
Go to step 20.
20. Monitor the OBD STATUS for DTC P0101 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 19,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the MAF sensor/
IATsensorandtheECM/PCM,thengotostep1.If
the screen indicates NOT COMPLETED, go to step
18. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II), and wait 2 seconds.
2. Check the MAF SENSOR in the DATA LIST with the HDS.
Go to step 3.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the MAF sensor/IAT sensor and the ECM/PCM.
3. Turn the ignition switch to LOCK (0).
4. Check the No. 3 ALTERNATOR (10 A) fuse in the under-dash fuse/relay box.
Go to step 4.
Repair short in the wire between the MAF
sensor/IAT sensor and the No. 3 ALTERNATOR
(10 A) fuse. Also replace the No. 3 ALTERNATOR
(10 A) fuse, then go to step 20.
5. Disconnect the MAF sensor/IAT sensor 5P connector.
6. Turn the ignition switch to ON (II).
(cont’d)MAF Sensor Circuit Low Voltage
Is DT C P0101 ind icated ?Does t he scr een i nd i cat e PASSE D? I s about 0 gm/ s or 0.1 V or l ess i nd i cat ed ?
IsthefuseOK?
08/08/21 14:15:38 61SNR030_110_0075
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DYNOMITE -2009-

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YES
NO
YES
NO YES
NO
11-76PGM-FI System
DTC Troubleshooting (cont’d)
MAF SENSOR/IAT SENSOR 5P CONNECTOR
IG1
(BLK/YEL)
MAF SENSOR/IAT SENSOR 5P CONNECTOR VG (RED/BLK) ECM/PCM CONNECTOR B (44P)
VG (RED/BLK)
7. Measure the voltage between MAF sensor/IATsensor 5P connector terminal No. 3 and body
ground.
Go to step 8.
Repair open in the wire between the No. 3
ALTERNATOR (10 A) fuse and the MAF sensor/IAT
sensor,thengotostep20.
8. Turn the ignition switch to LOCK (0).
9. Measure the resistance between MAF sensor/IAT sensor 5P connector terminal No. 1 and body
ground.
Go to step 14.
Go to step 10. 10. Jump the SCS line with the HDS.
11. Disconnect ECM/PCM connector B (44P).
12. Check for continuity between ECM/PCM connector
terminal B30 and body ground.
Repair short in the wire between the ECM/
PCM (B30) and the MAF sensor/IAT sensor, then go
to step 21.
Go to step 13.
Wire side of female terminals
Wire side of female terminals Terminal side of female terminals
Is there battery voltage?
Is there 190 210 k ? Is there continuity?
08/08/21 14:15:38 61SNR030_110_0076
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DYNOMITE -2009-

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DTC P0141:
YES
NO
YES
NO YES
NO
YES
NO
11-110PGM-FI System
DTC Troubleshooting (cont’d)
SECONDARY HO2S (SENSOR 2) 4P CONNECTOR
SECONDARY HO2S (SENSOR 2) 4P CONNECTOR
Secondary HO2S (Sensor 2)
Heater Circuit Malfunction
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the secondary HO2S (Sensor 2) and the ECM/
PCM.
5. Turn the ignition switch to LOCK (0).
6. Check the No. 3 ALTERNATOR (10 A) fuse in the under-dash fuse/relay box.
Go to step 7.
Repair short in the wire between the
secondary HO2S (Sensor 2) and the No. 3
ALTERNATOR (10 A) fuse. Also replace the No. 3
ALTERNATOR (10 A) fuse, then go to step 23.
7. Disconnect the secondary HO2S (Sensor 2) 4P connector. 8. At the secondary HO2S (Sensor 2) side, measure
the resistance between secondary HO2S (Sensor 2)
4P connector terminals No. 3 and No. 4.
Go to step 9.
Go to step 22.
9. At the secondary HO2S (Sensor 2) side, check for continuity between body ground and secondary
HO2S (Sensor 2) 4P connector terminals No. 3 and
No. 4 individually.
Go to step 22.
Go to step 10.
Wire side of female terminals
Wire side of female terminalsIs DTC P0141 indicated?
IsthefuseOK? Is t her e 5.4 7 .3 at r oom t emper at ur e?
Is there continuity?
08/08/21 14:17:23 61SNR030_110_0110
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DYNOMITE -2009-



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YES
NO
YES
NO
YES
NO
11-111
SECONDARY HO2S (SENSOR 2) 4P CONNECTOR
SO2SHTC (PNK) IG1 (YEL) ECM/PCM CONNECTOR B (44P)
SO2SHTC (BLK/WHT)
SECONDARY HO2S (SENSOR 2) 4P CONNECTOR IG1 (YEL)
10. Turn the ignition switch to ON (II).
11. Measure the voltage between secondary HO2S(Sensor 2) 4P connector terminals No. 3 and No. 4.
Go to step 12.
Go to step 16.
12. Turn the ignition switch to LOCK (0).
13. Jump the SCS line with the HDS.
14. Disconnect ECM/PCM connector B (44P). 15. Check for continuity between ECM/PCM connector
terminal B4 and body ground.
Repair short in the wire between the ECM/
PCM (B4) and the secondary HO2S (Sensor 2), then
go to step 23.
Go to step 29.
16. Measure the voltage between secondary HO2S (Sensor 2) 4P connector terminal No. 4 and body
ground.
Go to step 17.
Repair open in the wire between the
secondary HO2S (Sensor 2) and the No. 3
ALTERNATOR (10 A) fuse, then go to step 23.
(cont’d)
Terminal side of male terminals Terminal side of female terminals
Terminal side of male terminals
Is there battery voltage? Is there continuity?
Is there battery voltage?
08/08/21 14:17:23 61SNR030_110_0111
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