2006 ACURA CSX Service Repair Manual

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Page 385 of 2893

ACURA CSX 2006 Service Repair Manual 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 IGNITI

Page 386 of 2893

ACURA CSX 2006 Service Repair Manual Î
´
µ´
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
B

Page 387 of 2893

ACURA CSX 2006 Service Repair Manual 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
ACP

Page 388 of 2893

ACURA CSX 2006 Service Repair Manual 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
CONN

Page 389 of 2893

ACURA CSX 2006 Service Repair Manual 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
R

Page 390 of 2893

ACURA CSX 2006 Service Repair Manual 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 2

Page 391 of 2893

ACURA CSX 2006 Service Repair Manual 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

Page 392 of 2893

ACURA CSX 2006 Service Repair Manual µµ
(#

)
Malfunction Indicator Lamp (MIL) Indication
(In relation to Readiness Codes) Catalytic Converter Monitor and Readiness
Code
Enable Criteria
Pr

µµ
(#'

)
Malfunction Indicator Lamp (MIL) Indication
(In relation to Readiness Codes) Catalytic Converter Monitor and Readiness
Code
Enable Criteria
Procedure
11-69
How to Set Readiness Codes
The vehicle has certain readiness codes that are part of
the on-board diagnostics for the emissions systems. If
the vehicle’s battery has been disconnected or gone
dead, if the DTCs have been cleared, or if the ECM/PCM
has been reset, these readiness codes are reset to
incomplete. In some states, part of the emissions
testing is to make sure these codes are set to complete.
If all of them are not set to complete, the vehicle may
fail the emission test, or the test cannot be finished.
To check if the readiness codes are set to complete,
turn the ignition switch to ON (II), but do not start the
engine. The MIL will come on for 15 20 seconds. If it
then goes off, the readiness codes are set to complete.
If it flashes five times, one or more readiness codes are
not set to complete. To set readiness codes from
incomplete to complete, do the procedure for the
appropriate code.
To check the status of a specific DTC system, check the
OBD status in the DTC MENU with the HDS (see page
11-8). This screen displays the code, the current data list
of the enable criteria, and the status of the readiness
testing. NOTE:
Do not turn the ignition switch to LOCK (0) or ACC (I) during the procedure.
All readiness codes are cleared when the battery is disconnected, if the DTCs have been cleared, or if the
ECM/PCM is reset with the HDS.
Low ambient temperatures or excessive stop-and-go traffic may increase the drive time needed to switch
the readiness code from incomplete to complete.
The readiness code will not switch to complete until all the enable criteria are met.
If a fault in the secondary HO2S system caused the MIL to come on, the readiness code cannot be set to
complete until you correct the fault.
ECT SENSOR 1 at 70 °C (158 °F) or more.
IAT SENSOR at 7 °C (20 °F) or more.
Vehicle speed (VSS) above 40 km/h (25 mph). 1. Connect the HDS to the vehicle’s data link connector (DLC), and bring up the READINESS
CODEs screen for Catalyst in the DTCs MENU.
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. After about
8 km (5 miles), the readiness code should switch to
complete.
4. If the readiness code is still not set to complete, check for a Temporary DTC with the HDS. If there is
no DTC, one or more of the enable criteria were
probably not met; repeat the procedure.
(cont’d)
08/08/21 14:15:32 61SNR030_110_0069
ProCarManuals.com
DYNOMITE -2009-

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