2006 ACURA CSX oil

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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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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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11-72PGM-FI System
Component Location Index
IGNITION COILS
CAMSHAFT POSITION (CMP)
SENSOR B (EXHAUST SIDE)
ELECTRICAL LOAD
DETECTOR (ELD)
PGM-FI MAIN
RELAY 1IGNITION
COIL RELAY
PGM-FI
SUBRELAY
MASS AIR FLOW (MAF)
SENSOR/INTAKE AIR
TEMPERATURE
(IAT) SENSOR
ENGINE COOLANT
TEMPERATURE (ECT) SENSOR 1
OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR (M/T)
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR 2
MANIFOLD ABSOLUTE
PRESSURE (MAP) SENSOR
KNOCK SENSOR
INJECTORS
CRANKSHAFT POSITION
(CKP) SENSOR ENGINE CONTROL MODULE (ECM)/
POWERTRAIN CONTROL
MODULE (PCM)
Replacement, page 11-222
Replacement, page 11-226
Replacement,page 11-224
Replacement, page 11-225
Replacement, page 11-223
Replacement, page 11-225
Replacement, page 11-224
Replacement, page 11-223
Replacement,
page 11-219
Replacement,
page 11-222 Update, page 11-227
Substitution, page 11-7
Replacement, page 11-228
* : This illustration shows K20Z2 engine
08/08/21 14:15:36 61SNR030_110_0072
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DYNOMITE -2009-

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DTC P0300:
DTC P0301:
DTC P0302:
DTC P0303:
DTC P0304:
Special Tools Required YES
NO
YES
NO
YES
NO
11-115
Random Misfire and Any
Combination of the Following:
No. 1 Cylinder Misfire Detected
No. 2 Cylinder Misfire Detected
No. 3 Cylinder Misfire Detected
No. 4 Cylinder Misfire Detected
 Pressure gauge adapter 07NAJ-P07010A
 A/T low pressure gauge w/panel 07406-0070301
 A/T pressure hose 07406-0020201
 A/T pressure hose, 2,210 mm 07MAJ-PY4011A
 A/T pressure hose, adapter 07MAJ-PY40120
 Oil pressure hose 07ZAJ-S5AA200
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
 If the misfire is frequent enough to trigger detection of increased emissions during two consecutive
driving cycles, the MIL will come on, and DTC P0300
(and some of the combination of P0301 thr ough
P0304) will be stored.
 If the misfire is frequent enough to damage the catalyst, the MIL will blink whenever the misfire
occurs, and DTC P0300 (and some of the combination
of P0301 through P0304) will be stored. When the
misfire stops, the MIL will remain on.
 If any of the DTCs listed below are indicated at the same time as the random misfire DTCs, troubleshoot
those DTCs first, then recheck for random misfire
DTCs:
P0101, P0102, P0103: Mass air flow (MAF) sensor
P0107, P0108: Manifold absolute pressure (MAP)
sensor
P0171, P0172: Fuel system
P0335, P0339: Crankshaft position (CKP) sensor
P0365, P0369: Camshaft position (CMP) sensor B
P0401 , P0404 , P0416 , P2413 : Exhaust gas
recirculation (EGR) system
P0506, P0507: Idle control system
P2646, P2647, P2648, P2649: VTEC system : K20Z2 engine 1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine, and let it idle without load (A/T in
P or N, M/T in neutral).
4. Monitor the OBD STATUS for DTC P0301, P0302, P0303, or P0304 in the DTCs MENU with the HDS.
Go to step 9.
If the screen indicates PASSED, go to step 5. If
the screen indicates EXECUTING, keep idling until
a result comes on. If the screen indicates OUT OF
CONDITION, wait for several minutes, then recheck.
5. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3 MISFIRE, and/or CYL4 MISFIRE in the DATA LIST
for 10 minutes with the HDS.
Go to step 9.
Go to step 6.
6. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 REL TP SENSOR
 CLV (calculated load value)
 APP SENSOR
7. Monitor the OBD STATUS for DTC P0301, P0302, P0303, or P0304 in the DTCs MENU with the HDS.
Go to step 9.
If the screen indicates PASSED, go to step 8. If
the screen indicates EXECUTING, keep driving until
a result comes on. if the screen indicates OUT OF
CONDITION, go to step 6 and recheck.
(cont’d)
Does t he scr een i nd i cat e F AILE D?
Does the CYL1 MISFIRE, CYL2 MISFIRE, CYL3M I SF I RE , and / or CY L4 M I SF I RE show mi sf i r ecounts?
Does t he scr een i nd i cat e F AILE D?
08/08/21 14:17:24 61SNR030_110_0115
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YES
NO YES
NO
YES
NO
11-117
07406-0020201 or
07MAJ-PY4011A and
07MAJ-PY40120
A
22 N·m
(2.2 kgf·m,
16 lbf·ft)
07406-0070301
B
07NAJ-P07010A
07ZAJ-S5AA200
19. Turn the ignition switch to LOCK (0).
20. Remove the cowl cover and the under cowl panel (see page 20-163).
21. Remove the rocker arm oil pressure switch (A), and attach the special tools as shown, then attach the
rocker arm oil pressure switch to the pressure
gauge attachment (B).
NOTE: Install the parts in the reverse order of
removal with a new O-ring.
22. Reconnect the rocker arm oil pressure switch 2P connector.
23. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
24. Check the oil pressure at engine speeds of 1,000 rpm and 2,000 rpm.
Check for air in the fuel line, then go to step
25.
Inspect the VTEC system, then go to step 25. 25. Turn the ignition switch to ON (II).
26. Reset the ECM/PCM with the HDS.
27. Clear the CKP pattern with the HDS.
28. Do the ECM/PCM idle learn procedure (see page
11-310).
29. Do the CKP pattern learn procedure (see page 11-4).
30. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 REL TP SENSOR
 CLV (calculated load value)
 APP SENSOR
31. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the ignition coil(s), the injector(s), and
the ECM/PCM, then go to troubleshooting DTC
P0301, P0302, P0303, or P0304 (see page 11-118).
Go to step 32.
32. Monitor the OBD STATUS for DTC P0301, P0302, P0303, or P0304 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 31,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, go to step 1
and recheck. If the screen indicates EXECUTING,
keep driving until a result comes on. If the screen
indicates OUT OF CONDITION, go to step 30.
Is t he oi l pr essur e bel ow 49 k Pa ( 0.5 k gf / cm , 7psi)? Is DT C P0300, P0301, P0302, P0303, or P0304
indicated?
Does t he scr een i nd i cat e PASSE D?2
08/08/21 14:17:25 61SNR030_110_0117
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YES
NO
YES
NO YES
NO
YES
NO
YES
NO
11-119
12. Turn the ignition switch to LOCK (0).
13. Exchange the ignition coil from the problem
cylinder with one from another cylinder.
14. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 REL TP SENSOR
 CLV (calculated load value)
 APP SENSOR
15. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3 MISFIRE, and/or CYL4 MISFIRE in the DATA LIST
for 10 minutes with the HDS.
Go to step 16.
Intermittent misfire due to poor contact at an
ignition coil connector(s). (no misfire at this time).
Check for poor connections or loose terminals at
the ignition coils.
16. Determine which cylinder had the misfire.
Replace the faulty ignition coil (see page
4-21), then go to step 60.
Go to step 17.
17. Turn the ignition switch to LOCK (0).
18. Exchange the spark plug from the problem cylinder with one from another cylinder.
19. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 REL TP SENSOR
 CLV (calculated load value)
 APP SENSOR 20. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3
MISFIRE, and/or CYL4 MISFIRE in the DATA LIST
for 10 minutes with the HDS.
Go to step 21.
Intermittent misfire due to spark plug fouling
(no misfire at this time).
21. Determine which cylinder had the misfire.
Replace the faulty spark plug, then go to step
60.
Go to step 22.
22. Turn the ignition switch to LOCK (0).
23. Exchange the injector from the problem cylinder with one from the another cylinder.
24. Start the engine, and let it idle for 2 minutes.
25. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 REL TP SENSOR
 CLV (calculated load value)
 APP SENSOR
26. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3 MISFIRE, and/or CYL4 MISFIRE in the DATA LIST
for 10 minutes with the HDS.
Go to step 27.
Intermittent misfire due to bad contact at an
injector connector (no misfire at this time). Check
for poor connections or loose terminals at the
injector(s).
(cont’d)
Does the CYL1 MISFIRE, CYL2 MISFIRE, CYL3M I SF I RE , and / or CY L4 M I SF I RE show mi sf i r ecounts?
Does the misf ir e occur in the cylinder wher e thei gni t i on coi l w as ex changed ? Does the CYL1 MISFIRE, CYL2 MISFIRE, CYL3
M I SF I RE , and / or CY L4 M I SF I RE show mi sf i r ecounts?
Does the misf ir e occur in the cylinder wher e thespar k pl ug w as ex changed ?
Does the CYL1 MISFIRE, CYL2 MISFIRE, CYL3M I SF I RE , and / or CY L4 M I SF I RE show mi sf i r ecounts?
08/08/21 14:17:25 61SNR030_110_0119
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YES
NO
YES
NO
YES
NO
11-120PGM-FI System
DTC Troubleshooting (cont’d)
IGNITION COIL 3P CONNECTOR
IG1 (BLK/WHT) IGNITION COIL 3P CONNECTOR
GND
(BLK)
27. Determine which cylinder had the misfire.
Replace the faulty injector (see page 11-219),
then go to step 60.
Go to step 28.
28. Turn the ignition switch to LOCK (0).
29. Disconnect the ignition coil 3P connector from the problem cylinder.
30. Turn the ignition switch to ON (II).
31. Measure the voltage between ignition coil 3P connector terminal No. 3 and body ground.
Go to step 32.
Repair open in the wire between the ignition
coil and the ignition coil relay, then go to step 60. 32. Turn the ignition switch to LOCK (0).
33. Check for continuity between ignition coil 3P
connector terminal No. 2 and body ground.
Go to step 34.
Repair open in the wire between the ignition
coil and G101, then go to step 60.
Wire side of female terminals Wire side of female terminals
Does the misf ir e occur in the cylinder wher e the
i nj ect or w as ex changed ?
Is there battery voltage? Is there continuity?
08/08/21 14:17:26 61SNR030_110_0120
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DYNOMITE -2009-


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PROBLEM
CYLINDER
DTC ECM/PCM
TERMINAL WIRE
COLOR
YES
NO PROBLEM
CYLINDER
DTC ECM/PCM
TERMINAL WIRE
COLOR
YES
NO
11-121
ECM/PCM CONNECTOR C (44P) IGPLS4 (BRN)
IGPLS1 (YEL/GRN) IGPLS2 (BLU/RED) IGPLS3 (WHT/BLU)
ECM/PCM CONNECTOR C (44P)
IGPLS4 (BRN)
IGPLS1 (YEL/GRN) IGPLS2 (BLU/RED) IGPLS3 (WHT/BLU)IGNITION COIL 3P CONNECTOR
IGPLS
34. Turn the ignition switch to LOCK (0).
35. Jump the SCS line with the HDS.
36. Disconnect ECM/PCM connector C (44P).
37. Check for continuity between body ground and theappropriate ECM/PCM connector terminal of the
problem cylinder (see table).
No. 1 P0301 C15 YEL/GRN
No. 2 P0302 C16 BLU/RED
No. 3 P0303 C17 WHT/BLU
No. 4 P0304 C18 BRN
Repair short in the wire between the ECM/
PCM and the ignition coil, then go to step 60.
Go to step 38. 38. Check for continuity between appropriate ignition
coil 3P connector terminal No. 1 and the
appropriate ECM/PCM connector terminal of the
problem cylinder (see table).
No. 1 P0301 C15 YEL/GRN
No. 2 P0302 C16 BLU/RED
No. 3 P0303 C17 WHT/BLU
No. 4 P0304 C18 BRN
Go to step 39.
Repair open in the wire between the ECM/
PCM and the ignition coil, then go to step 60.
(cont’d)
Terminal side of female terminals Terminal side of female terminalsWire side of female terminals
Is there continuity?
Is there continuity?
08/08/21 14:18:50 61SNR030_110_0121
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