2006 ACURA CSX Service Repair Manual

jack points night vision fuel filter oil dipstick OBD port driver seat adjustment

Page 337 of 2893

ACURA CSX 2006 Service Repair Manual SymptomDiagnostic procedure Also check for
11-14Fuel and Emissions Systems
Symptom Troubleshooting Index (cont’d)

Low power
(MIL works OK, no DTCs set)
Check the fuel pressure (s

Page 338 of 2893

ACURA CSX 2006 Service Repair Manual (#)
Electronic Control Systems
Self-diagnosisOne Drive Cycle Detection Method
Two Drive Cycle Detection Method
Fail-safe Function
MIL Bulb Check and Read

(#')
Electronic Control Systems
Self-diagnosisOne Drive Cycle Detection Method
Two Drive Cycle Detection Method
Fail-safe Function
MIL Bulb Check and Readiness Code Condition
Self Shut Down (SSD) Mode
11-15
System Description
The functions of the fuel and emission control systems are managed by the engine control module (ECM) on vehicles
with manual transmissions or the powertrain control module (PCM) on vehicles with automatic transmissions.
The ECM/PCM detects a failure of a signal from a sensor or another control unit and stores a Temporary DTC or a DTC.
Depending on the failure, a DTC is stored in either the first or the second drive cycle (K20Z3 engine: DTC P0457, turns
on the malfunction indicator lamp (MIL) during the third drive cycle). When a DTC is stored, the ECM/PCM turns on the
malfunction indicator lamp (MIL) by a signal sent to the gauge via F-CAN. When an abnormality occurs in the signal from a sensor or from another control unit, the ECM/PCM stores a DTC
and turns on the MIL immediately.
When an abnormality occurs in the signal from a sensor or from another control unit in the first drive cycle, the
ECM/PCM stores a Temporary DTC. If the failure continues in the second drive cycle, the ECM/PCM stores a DTC and
turns on the MIL.
When an abnormality occurs in the signal from a sensor or another control unit, the ECM/PCM ignores the signal and
substitutes a pre-programmed value that allows the engine to continue running. This causes a DTC to be stored and
the MIL to come on.
When the ignition switch is turned to ON (II), the ECM/PCM turns on the MIL via the F-CAN circuit for about 15 to
20 seconds to check the bulb condition. If any readiness codes are not set to complete, the MIL flashes five times. If all
readiness codes are set to complete, the MIL goes off.
After the ignition switch is turned to LOCK (0), the ECM/PCM stays on (about 30 minutes). If the ECM/PCM connector is
disconnected during this time, the ECM/PCM may be damaged. To cancel this mode, disconnect the negative cable
from the battery or jump the SCS line with the HDS after the ignition switch is turned to LOCK (0).
(cont’d)
08/08/21 14:12:37 61SNR030_110_0015
ProCarManuals.com
DYNOMITE -2009-

Page 339 of 2893

ACURA CSX 2006 Service Repair Manual Î
´
ECM/PCM Electrical Connections
11-16Fuel and Emissions Systems
System Description (cont’d)
IGNITION
SWITCH
IG1
ST B
IG2
IG1 HOT in ON (II)
and START (III) IGNITION COIL
RELAY
ELD PGM-FI

Page 340 of 2893

ACURA CSX 2006 Service Repair Manual Î
´
µ
11-17
A
No. 1 INJECTOR
No. 2 INJECTOR
No. 3 INJECTOR
No. 4 INJECTOR
IAT SENSOR
MAP SENSOR
SG1 C14
MAP C11
VCC1 C13
ECT SENSOR 1
ECT1 B23 IAT B31
KNOCK SENSOR
KS C42
K
SG2 B33
C6 INJ2
C

Page 341 of 2893

ACURA CSX 2006 Service Repair Manual
´µ
ECM/PCM Electrical Connections (cont’d)
11-18 Fuel and Emissions Systems
System Description (cont’d)
D
C
EVAP CANISTER
PURGE VALVE
EVAP CANISTER
VENT SHUT VALVE
ALTERNATOR
ICM
To
SPARK

Page 342 of 2893

ACURA CSX 2006 Service Repair Manual Î
´µ
11-19
A42 WEN
A31 SCS OIL PRESSURE
SWITCH
B
BRAKE PEDAL
POSITION SWITCH
BKSW A40
BKSWNC A39 H
VSSOUT A29 To
MOONROOF
CONTROL UNIT/MOTOR,
AUDIO UNIT
A37 CANL
FTP SENSOR
A19 VCC6
A26 FTP

Page 343 of 2893

ACURA CSX 2006 Service Repair Manual Î
ØÓ
Ú
´
µ
ECM/PCM Electrical Connections (cont’d)
11-20 Fuel and Emissions Systems
System Description (cont’d)
TERMINAL LOCATIONS
*1: A/T
ECM/PCM A ( ) (44P) ECM/PCM C ( ) (44P)
E

Page 344 of 2893

ACURA CSX 2006 Service Repair Manual
Vacuum Hose Routing
K20Z2 engine
11-21
EVAPORATIVE EMISSION
(EVAP) CANISTER PURGE VALVETo
EVAPORATIVE
EMISSION (EVAP)
CANISTER
INTAKE AIR
BYPASS CONTROL
THERMAL VALVE
FRONT OF
VEHICLE
(cont’d)

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