charging ACURA CSX 2006 Service User Guide


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Installation
4-36Charging System
Alternator Removal and Installation (cont’d)
A
B
C 6x1.0mm
8 N·m (0.8 kgf·m,
6lbf·ft)
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft) 8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft) A
B
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft)
C
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft) A
D
A
C
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft)
B
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft)
1. Install the alternator, then connect the alternator
connector (A) and the positive alternator cable (B)
and install the harness clamp (C). Make sure the
crimped side of the ring terminal faces away from
the alternator when you connect it.
2. Tighten the three bolts securing the alternator. 3. Install the bulkhead (A), then install the bulkhead
mounting bolts (B) and the A/C condenser bracket
mounting bolts (C).
4. Apply body paint to the bulkhead mounting bolts.
5. Install the radiator upper brackets (A), the radiator cap base mounting bolts (B), and the bolts (C), and
connect the reservoir hose (D).
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Exploded View
4-38Charging System
Alternator Overhaul
ROTOR
FRONT BEARING
RETAINERFRONT BEARING
DRIVE-END
HOUSING
PULLEYPULLEY
LOCKNUT
TERMINAL
INSULATOR BRUSH HOLDER
ASSEMBLY REAR HOUSING
ASSEMBLY
END COVER WASHER
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4-40Charging System
Alternator Overhaul (cont’d)
B
A
7. Remove the four through bolts, then remove the
rear housing assembly (A), and washer (B).
8. If you are not replacing the front bearing, go to step 13. Remove the rotor from the drive-end
housing. 9. Inspect the rotor shaft for scoring, and inspect the
bearing journal surface in the drive-end housing for
seizure marks.
 If the rotor is damaged, replace the rotor assembly.
 If the rotor is OK, go to step 10.
10. Remove the front bearing retainer.
11. Drive out the front bearing with a brass drift and a hammer.
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Alternator Reassembly
4-42Charging System
Alternator Overhaul (cont’d)
A
B
16. If you removed the pulley, put the rotor in the drive- end housing, then tighten its locknut to 110 N·m
(11.2 kgf·m, 81.0 lbf·ft).
17. Remove any grease or any oil from the slip rings.
18. Put the rear housing assembly and the drive-end housing/rotor assembly together, tighten the four
through bolts.
19. Push the brushes (A) in, then insert a pin or drill bit (B) (about 1.6 mm (0.06 in.) diameter) to hold them
there.
20. Install the brush holder assembly, and pull out the pin or drill bit.
21. Install the end cover.
22. After assembling the alternator, turn the pulley by hand to make sure the rotor turns smoothly and
without noise.
23. Install the alternator (see page 4-36) and the drive belt (see page 4-31).
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DTC
(MIL indication ) Two Drive Cycle
Detection Detection Item MIL Note
11-10Fuel and Emissions Systems
DTC Troubleshooting Index (cont’d)
P0325 (23)
Knock Sensor Circuit Malfunction ON (see page 11-126)
P0335 (4) Crankshaft Position (CKP) Sensor No Signal ON (see page 11-128)
P0339 (4) Crankshaft Position (CKP) Sensor Circuit Intermittent Interruption ON (see page 11-131)
P0340 (57) Camshaft Position (CMP) Sensor A No Signal ON (see page 11-278)
P0341 (57) Camshaft Position (CMP) Sensor A and Crankshaft Position (CKP)
Sensor Incorrect Phase Detected ON (see page 11-281)
P0344 (57) Camshaft Position (CMP) Sensor A Circuit Intermittent Interruption ON (see page 11-282)
P0365 (8) Camshaft Position (CMP) Sensor B No Signal ON (see page 11-132)
P0369 (8) Camshaft Position (CMP) Sensor B Circuit Intermittent Interruption ON (see page 11-134)
P0401 (80) Exhaust Gas Recirculation (EGR) Insufficient Flow ON (see page 11-357)
P0404 (12) Exhaust Gas Recirculation (EGR) Valve Circuit Range/Performance
Problem ON (see page 11-358)
P0406 (12) Exhaust Gas Recirculation (EGR) Valve Position Sensor Circuit High
Voltage ON (see page 11-361)
P0420 (67) Catalyst System Efficiency Below Threshold ON (see page 11-353)
P0443 (92) Evaporative Emission (EVAP) Canister Purge Valve Circuit
Malfunction ON (see page 11-375)
P0451 (91) Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem ON (see page 11-379)
P0452 (91) Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage ON (see page 11-380)
P0453 (91) Fuel Tank Pressure (FTP) Sensor Circuit High Voltage ON (see page 11-383)
P0455 (90) Evaporative Emission (EVAP) System Large Leak Detected ON (see page 11-386)
P0456 (90) Evaporative Emission (EVAP) System Very Small Leak Detected ON (see page 11-386)
P0457 (90) Evaporative Emission (EVAP) System Leak Detected/Fuel Fill Cap
Loose or Missing ON (see page 11-390)
P0457 (90) Evaporative Emission (EVAP) System Leak Detected/Fuel Fill Cap
Loose or Missing OFF (see page 11-390)
P0461 (121) Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Range/
Performance Problem OFF (see page 11-313)
P0462 (121) Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Low Voltage OFF (see page 11-313)
P0463 (121) Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit High Voltage OFF (see page 11-315)
P0496 (92) Evaporative Emission (EVAP) System High Purge Flow Detected ON (see page 11-391)
P0497 (90) Evaporative Emission (EVAP) System Low Purge Flow Detected ON (see page 11-392)
P0497 (90) Evaporative Emission (EVAP) System Low Purge Flow Detected ON (see page 11-395)
P0498 (117) Evaporative Emission (EVAP) Canister Vent Shut Valve Circuit Low
Voltage ON (see page 11-398)
P0499 (117) Evaporative Emission (EVAP) Canister Vent Shut Valve Circuit High
Voltage ON (see page 11-401)
P0506 (14) Idle Control System RPM Lower Than Expected ON (see page 11-298)
P0507 (14) Idle Control System RPM Higher Than Expected ON (see page 11-300)
P050A (167) Cold Start Idle Air Control System Performance Problem ON (see page 11-135)
P050B (167) Cold Start Ignition Timing Control System Performance Problem ON (see page 11-137)
P0532 (191) A/C Pressure Sensor Circuit Low Voltage OFF (see page 11-301)
P0533 (191) A/C Pressure Sensor Circuit High Voltage OFF (see page 11-303)
P0562 (34) Charging System Low Voltage OFF (see page 11-140)
P0563 (34) Engine Control Module (ECM)/Powertrain Control Module (PCM)
Power Source Circuit Unexpected Voltage OFF (see page 11-141)
P0602 (196) Engine Control Module (ECM)/Powertrain Control Module (PCM)
Programming Error ON (see page 11-144)
P0603 (131) Engine Control Module (ECM)/Powertrain Control Module (PCM)
Internal Control Module Keep Alive Memory (KAM) Error ON (see page 11-144)
NOTE:  The above DTCs are indicated when the PGM-FI system is selected with the HDS.
 Some automatic transmission DTCs cause the MIL to come on. If the MIL is on and no DTCs are indicated in the PGM-FI system, select the A/T system, and check for automatic transmission DTCs.
: These DTCs are indicated by a blinking MIL when the SCS line is jumped with the HDS.
4: K20Z2 engine
5: K20Z3 engine
6: ’06 model
7: ’07-09 models
8: ’06-08 models
4
4
4
6
7 6
7
4
5
4
5
8
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DTC
(MIL indication ) Two Drive Cycle
Detection Detection Item MIL Note
11-11
P0606 (0)
Engine Control Module (ECM)/Powertrain Control Module (PCM)
Processor Malfunction ON (see page 11-145)
P060A (131) Powertrain Control Module (PCM) (A/T System) Internal Control
Module Malfunction ON (see page 11-145)
P062F (131) Engine Control Module (ECM)/Powertrain Control Module (PCM)
Internal Control Module Keep Alive Memory (KAM) Error ON (see page 11-144)
P0630 (139) VIN Not Programmed or Mismatch ON (see page 11-146)
P0685 (135) Engine Control Module (ECM)/Powertrain Control Module (PCM)
Power Control Circuit/Internal Circuit Malfunction ON (see page 11-147)
P0720 (122) Output Shaft (Countershaft) Speed Sensor Circuit Malfunction ON (see page 11-148)
P0720 (122) Output Shaft (Countershaft) Speed Sensor Circuit Malfunction ON (see page 11-149)
P1009 (56) Variable Valve Timing Control (VTC) Advance Malfunction ON (see page 11-283)
P1109 (13) Barometric Pressure (BARO) Sensor Circuit Out of Range High ON (see page 11-152)
P1116 (86) Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/
Performance Problem ON (see page 11-153)
P1128 (5) Manifold Absolute Pressure (MAP) Sensor Signal Lower Than
Expected ON (see page 11-155)
P1129 (5) Manifold Absolute Pressure (MAP) Sensor Signal Higher Than
Expected ON (see page 11-156)
P1157 (48) Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS Circuit High Voltage ON (see page 11-157)
P1172 (61) Air Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Out of Range High ON (see page 11-159)
P1297 (20) Electrical Load Detector (ELD) Circuit Low Voltage OFF (see page 11-160)
P1298 (20) Electrical Load Detector (ELD) Circuit High Voltage OFF (see page 11-162)
P1454 (91) Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem ON (see page 11-402)
P145C (90) Evaporative Emission (EVAP) System Purge Flow Malfunction ON (see page 11-404)
P1549 (34) Charging System High Voltage OFF (see page 11-164)
P1658 (40) Electronic Throttle Control System (ETCS) Control Relay ON
Malfunction ON (see page 11-241)
P1659 (40) Electronic Throttle Control System (ETCS) Control Relay OFF
Malfunction ON (see page 11-243)
P1683 (40) Throttle Valve Default Position Spring Performance Problem ON (see page 11-247)
P1684 (40) Throttle Valve Return Spring Performance Problem ON (see page 11-248)
P16BB (116) Alternator B Terminal Circuit Low Voltage OFF (see page 11-165)
P16BC (116) Alternator FR Terminal Circuit/IGP Circuit Low Voltage OFF (see page 11-166)
P2101 (40) Electronic Throttle Control System (ETCS) Malfunction ON (see page 11-249)
P2118 (40) Throttle Actuator Current Range/Performance Problem ON (see page 11-251)
P2122 (37) Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP)
Sensor D) Circuit Low Voltage ON (see page 11-253)
P2123 (37) Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP)
Sensor D) Circuit High Voltage ON (see page 11-256)
P2127 (37) Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP)
Sensor E) Circuit Low Voltage ON (see page 11-257)
P2128 (37) Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP)
Sensor E) Circuit High Voltage ON (see page 11-260)
P2135 (7) Throttle Position (TP) Sensor A/B Incorrect Voltage Correlation ON (see page 11-262)
P2138 (37) Accelerator Pedal Position (APP) Sensor A/B (Throttle Position (TP)
Sensor D/E) Incorrect Voltage Correlation ON (see page 11-264)
P2176 (40) Throttle Actuator Control System Idle Position Not Learned ON (see page 11-266)
P2183 (192) Engine Coolant Temperature (ECT) Sensor 2 Circuit Range/
Performance Problem ON (see page 11-168)
P2184 (192) Engine Coolant Temperature (ECT) Sensor 2 Circuit Low Voltage ON (see page 11-170)
P2185 (192) Engine Coolant Temperature (ECT) Sensor 2 Circuit High Voltage ON (see page 11-172)
P2195 (48) Air Fuel Ratio (A/F) Sensor (Sensor 1) Signal Stuck Lean ON (see page 11-174)
NOTE:  The above DTCs are indicated when the PGM-FI system is selected with the HDS.
 Some automatic transmission DTCs cause the MIL to come on. If the MIL is on and no DTCs are indicated in the PGM-FI system, select the A/T system, and check for automatic transmission DTCs.
: These DTCs are indicated by a blinking MIL when the SCS line is jumped with the HDS.
1: A/T
2: The D indicator and the MIL may come on at the same time (A/T).
3: M/T
4: K20Z2 engine
5: K20Z3 engine
9: ’09 model
(cont’d)
1
9
1, 2
3
4
5
5
3
1
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Throttle Body
Brake Pedal Position Switch
Electrical Power Steering (EPS) Signal
Fuel Cutoff Control
Fuel Pump Control
PGM-FI Main Relay 1 and 2
Idle Control System
Fuel Supply System
11-36Fuel and Emissions Systems
System Description (cont’d)
THROTTLE VALVE
THROTTLE POSITION
(TP) SENSOR and
THROTTLE ACTUATOR
The throttle body is a single-barrel side draft type. The
lower portion of the throttle valve is heated by engine
coolant from the cylinder head to prevent icing of the
throttle plate. When the engine is cold, the A/C compressor is on, the
transmission is in gear, the brake pedal is pressed, the
power steering load is high, or the alternator is
charging, the ECM/PCM sends signal to the throttle
position to maintain the correct idle speed.
The brake pedal position switch signals the ECM/PCM
when the brake pedal is pressed.
The EPS signals the ECM/PCM when the power steering
load is high.
During deceleration with the throttle valve closed,
current to the injectors is cut off to improve fuel
economy at engine speeds over 1,000 rpm. Fuel cutoff
control also occurs when the engine speed exceeds
6,900 rpm (K20Z3: 8,200 rpm), regardless of the
position of the throttle valve, to protect the engine from
over-revving. When the vehicle is st
opped, the ECM/
PCM cuts the fuel at engine speeds over 5,000 rpm
(K20Z3: 7,700 rpm). On a cold engine, fuel cut occurs at
a lower engine speed.
When the ignition switch is turned to ON (II), the ECM/
PCM grounds PGM-FI main relay 2 (FUEL PUMP) which
feeds current to the fuel pump for 2 seconds to
pressurize the fuel system. With the engine running, the
ECM/PCM grounds PGM-FI main relay 2 (FUEL PUMP)
and feeds current to the fuel pump. When the engine is
not running and the ignition is turned to ON (II), the
ECM/PCM cuts ground to PGM-FI main relay 2 (FUEL
PUMP) which cuts current to the fuel pump.
PGM-FI main relay 1 is energized whenever the ignition
switch is ON (II), to supply battery voltage to the ECM/
PCM, power to the injectors, and power for PGM-FI
main relay 2 (FUEL PUMP). PGM-FI main relay 2 (FUEL
PUMP) is energized to supply power to the fuel pump
for 2 seconds when the ignition switch is turned to
ON (II), and when the engine is cranking or running.
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i-VTEC
11-37
LOW SPEED CAMHIGH SPEED CAM
HIGH
ENGINE SPEED HIGH
LOW
LOW
ENGINE
LOAD
TORQUE CURVE
 The i-VTEC system has a variable valve timing control (VTC) mechanism on the intake camshaft in addition to the
usual VTEC.
This system improves fuel efficiency and reduces exhaust emissions at all levels of engine speed, vehicle speed,
and engine load.
 The VTEC system changes the valve lift and timing by using more than one cam profile.
 The VTC system changes the phase of the intake camshaft via oil pressure. It changes the intake valve timing continuously.
Driving Condition VTC Control Description
Light-load Base Position For stable combustion, the cam angle is retarded, and reduces the entry of exhaust gas into the cylinder.
Medium/high-load Advance Control Cam phase angle is controlled to optimize valve timing, improving fuel efficiency and reducing
emissions.
High speed Advance-Base Position To reduce pumping loss, the intake valve is closed quickly. This gives the air/fuel mixture a charging
effect that helps to maximize engine power.
(cont’d)
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VTC System
VTEC System
K20Z2 engine
K20Z3 engine
11-38
Fuel and Emissions Systems
System Description (cont’d)
MAXIMUM VTC ADVANCE 25 °
TDC
EX IN 1IN 2
EX IN 2IN 1
MAXIMUM VTC ADVANCE 25 °
SHORT OVERLAP
LONG OVERLAP
LOW SPEED VALVE TIMING HIGH SPEED VALVE TIMING
EX IN EXIN
IN (LOW LIFT)
LOW SPEED VALVE TIMING HIGH SPEED VALVE TIMING
EX IN EX IN
 The VTC system makes continuous intake valve timing changes based on operating conditions.
 Intake valve timing is optimized to allow the engine to produce maximum power.
 Cam angle is advanced to obtain the EGR effect and reduce pumping loss. The intake valve is closed quickly to
reduce the entry of the air/fuel mixture into the intake port and improve the charging effect.
 The system reduces the cam advance at idle, stabilizes combustion, and reduces engine speed.
 If a malfunction occurs, the VTC system control is disabled and the valve timing is fixed at the fully retarded position.
 The VTEC system changes the cam profile to correspond to the engine speed. It maximizes torque at low engine speed and output at high engine speed.
 The low lift cam is used at low engine speeds, and the high lift cam is used at high engine speeds.
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µ
µ
µ
µ
YES
NO
YES
NO
DTC P0562:
11-14011-140PGM-FI System
DTC Troubleshooting (cont’d)
36. Monitor the OBD STATUS for DTC P050B in the
DTCs MENU with the HDS.
If the ECM/PCM was updated,
troubleshooting is complete. If the ECM/PCM was
substituted, replace the original ECM/PCM
(see page 11-228). If any other Temporary DTCs or
DTCs were indicated in step 35, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the CKP sensor,
the throttle body, the MAF/IAT sensor, ECT
sensor 1, ECT sensor 2, and the ECM/PCM. If the
ECM/PCM was updated, substitute a known-good
ECM/PCM (see page 11-7), then go to step 33. If the
ECM/PCM was substituted, go to step 1. If the
screen indicates EXECUTING, keep idling until a
result comes on. If the screen indicates OUT OF
CONDITION, go to step 33. NOTE:
 Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
 If any high current load accessories are installed, this DTC can be set.
 If DTC P16BB and/or P16BC is stored at the same time as DTC P0562, troubleshoot DTC P16BB and/or P16BC
first, then recheck for DTC P0562.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine.
4. Check under these conditions: A/Con
 Temperature control at maximum cool
 Blower fan at maximum speed
 Rear window defogger on
 Headlights on high beam
5. Hold the engine speed at 2,000 rpm (A/T in P or N, M/T in neutral) for 1 minute.
6. Check for Temporary DTCs or DTCs with the HDS.
Replace the alternator (see page 4-34), then
go to step 7.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the alternator and the under-hood fuse/relay box,
and check the battery performance (see page
22-67).Charging System Low Voltage
Does t he scr een i nd i cat e PASSE D?
Is DTC P0562 indicated?
08/08/21 14:18:57 61SNR030_110_0140
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