2006 ACURA CSX engine

(#'

)
µ
µ
µ
µ
µ
µ µ
µ
µ
µ
µ
µ
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
YES
NO
11-204PGM-FI System
DLC Circuit Troubleshooting
NOTE: Make sure the HDS and the HDS DLC cable are
not detective.
1. Turn the ignition switch to LOCK (0).
2. Connect the HDS to the DLC (see page 11-3). NOTE: Make sure the HDS is properly connected to
the DLC.
3. Turn the ignition switch to ON (II), and read the HDS.
Go to step 4.
Go to step 25.
4. Check for Temporary DTCs or DTCs in the PGM-FI system with the HDS.
Go to the indicated DTC’s troubleshooting.
Go to step 5.
5. Turn the ignition switch to LOCK (0).
6. Turn the ignition switch to ON (II), and watch the SRS indicator.
Go to the SRS system’s general
troubleshooting information (see page 24-22).
 With ABS: Go to step 7.
 WithVSAsystem:Gotostep9. 7. Turn the ignition switch to LOCK (0).
8. Turn the ignition switch to ON (II), and watch the
ABS indicator.
Go to the ABS’s general troubleshooting
information (see page 19-49).
Go to step 11.
9. Turn the ignition switch to LOCK (0).
10. Turn the ignition switch to ON (II), and watch the VSA indicator.
Go to the VSA system’s general
troubleshooting information (see page 19-97).
Go to step 11.
11. Turn the ignition switch to LOCK (0).
12. Start the engine, and watch the EPS indicator.
Go to the EPS system’s general
troubleshooting information (see page 17-19).
Go to step 13.
Does the HDS identif y the vehicle?
Ar e any T empor ar y DT Cs or DT Cs i nd i cat ed ?
Does the SRS indicator stay on? Does the ABS indicator stay on?
Does the V SA indicator stay on?Does the EPS indicator stay on?
08/08/21 14:21:54 61SNR030_110_0204
ProCarManuals.com
DYNOMITE -2009-

µ
µ µ
µ
µ
µ
YES
NO YES
NO
YES
NO
11-208PGM-FI System
DLC Circuit Troubleshooting (cont’d)
ECM/PCM CONNECTOR A (44P)
CANL (RED)
38. Check for continuity between ECM/PCM connectorterminal A37 and body ground.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-228).
Repair open in the wire between the ECM/
PCM (A37) and DLC terminal No. 14. 39. Try to start the engine.
Go to the F-CAN circuit troubleshooting
(see page 11-191).
Go to step 40.
40. Turn the ignition switch to LOCK (0).
41. Check the No. 2 IG MAIN (50 A) fuse in the under- hood fuse/relay box.
Repair open in the wire between the No. 2 IG
MAIN (50 A) fuse and the ignition switch. If the wire
isOK,gotostep42.
Repair short in the wire between the No. 2 IG
MAIN (50 A) fuse and the under-hood fuse/relay
box.AlsoreplacetheNo.2IGMAIN(50A)fuse.
Terminal side of female terminals
Is there continuity? Does t he engi ne st ar t and i d l e smoot hl y ?
IsthefuseOK?
08/08/21 14:21:56 61SNR030_110_0208
ProCarManuals.com
DYNOMITE -2009-



µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO
YES
NO
YES
NO
11-216PGM-FI System
DLC Circuit Troubleshooting (cont’d)
ECM/PCM CONNECTOR C (44P)
VCC1 (YEL/RED) ECM/PCM CONNECTOR B (44P)
VCC2 (YEL/BLU) (YEL)*
*:K20Z3engine
77. Check for continuity between ECM/PCM connector terminal C13 and body ground.
Go to step 78.
Go to step 79.
78. Continue to check for continuity between ECM/PCM connector terminal C13 and body ground, while
disconnecting these connectors, one at a time:
 MAP sensor 3P connector
 Output shaft (countershaft) speed sensor 3P connector (K20Z2 engine)
Replace the part that caused an open when it
was disconnected.
Repair short in the wire between the ECM/
PCM (C13) and the MAP sensor or the output shaft
(countershaft) speed sensor (K20Z2 engine). 79. Check for continuity between ECM/PCM connector
terminal B18 and body ground.
Go to step 80.
Go to step 81.
80. Continue to check for continuity between ECM/PCM connector terminal B18 and body ground, while
disconnecting these connectors, one at a time:
 EGR valve 6P connector (K20Z2 engine)
 Input shaft (mainshaft) speed sensor 3P connector (K20Z2 engine)
 Output shaft (countershaft) speed sensor 3P connector (K20Z3 engine)
Replace the part that caused an open when it
was disconnected.
Repair short in the wire between the ECM/
PCM (B18) and the EGR valve (K20Z2 engine), the
input shaft (mainshaft) speed sensor (K20Z2
engine) or the output shaft (countershaft) speed
sensor (K20Z3 engine).
Terminal side of female terminals Terminal side of female terminals
Is there continuity?
Does cont i nui t y go aw ay w hen one of t he abov ecomponent s i s d i sconnect ed ? Is there continuity?
Does cont i nui t y go aw ay w hen one of t he abov epar t s i s d i sconnect ed ?
08/08/21 14:23:33 61SNR030_110_0216
ProCarManuals.com
DYNOMITE -2009-



µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO YES
NO
YES
NO
11-217
ECM/PCM CONNECTOR C (44P)
VCC3 (BLU) ECM/PCM CONNECTOR A (44P)
VCC4
(BRN)
81. Check for continuity between ECM/PCM connectorterminal C12 and body ground.
Go to step 82.
Go to step 83.
82. Continue to check for continuity between ECM/PCM connector terminal C12 and body ground, while
disconnecting the throttle body 6P connector.
Repair short in the wire between the ECM/
PCM (C12) and the throttle body.
Replace the throttle body; K20Z2 engine
(see page 11-348), K20Z3 engine (see page 11-349). 83. Check for continuity between ECM/PCM connector
terminal A25 and body ground.
Go to step 84.
Go to step 85.
84. Continue to check for continuity between ECM/PCM connector terminal A25 and body ground, while
disconnecting the APP sensor 6P connector.
Repair short in the wire between the ECM/
PCM (A25) and the APP sensor.
Replace the accelerator pedal module; K20Z2
engine (see page 11-269), K20Z3 engine (see page
11-270).
(cont’d)
Terminal side of female terminals Terminal side of female terminals
Is there continuity?
Is there continuity? Is there continuity?
Is there continuity?
08/08/21 14:23:34 61SNR030_110_0217
ProCarManuals.com
DYNOMITE -2009-


µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO
YES
NO
YES
NO
11-218PGM-FI System
DLC Circuit Troubleshooting (cont’d)
ECM/PCM CONNECTOR A (44P)
VCC5 (GRY) ECM/PCM CONNECTOR A (44P)
VCC6
(RED)
85. Check for continuity between ECM/PCM connectorterminal A24 and body ground.
Go to step 86.
Go to step 87.
86. Continue to check for continuity between ECM/PCM connector terminal A24 and body ground, while
disconnecting the APP sensor 6P connector.
Repair short in the wire between the ECM/
PCM (A24) and the APP sensor.
Replace the accelerator pedal module; K20Z2
engine (see page 11-269), K20Z3 engine (see page
11-270). 87. Check for continuity between ECM/PCM connector
terminal A19 and body ground.
Go to step 88.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-228).
88. Continue to check for continuity between ECM/PCM connector terminal A19 and body ground, while
disconnecting these parts, one at a time:
 A/C pressure sensor 3P connector
 FTP sensor 3P connector
Replace the part that caused an open when it
was disconnected.
Repair short in the wire between the ECM/
PCM (A19) and the A/C pressure sensor or the FTP
sensor.
Terminal side of female terminals Terminal side of female terminals
Is there continuity?
Is there continuity? Is there continuity?
Does cont i nui t y go aw ay w hen one of t he abov econnect or s i s d i sconnect ed ?
08/08/21 14:23:34 61SNR030_110_0218
ProCarManuals.com
DYNOMITE -2009-


(#' )
11-219
Injector Replacement
A BC
D
E
F
1. Relieve fuel pressure (see page 11-322).
2. Remove the engine cover.
3. Disconnect the injector connectors (A) from the injectors.
4. Remove the ground cable bolt (G101) (B).
5. Disconnect the quick-connect fitting (C).
6. Remove the fuel rail mounting nuts (D) from the fuel rail (E).
7. Remove the fuel rail and the injectors from the injector base.
8. Remove the injector clips (F) from the injectors.
9. Remove the injectors from the fuel rail.
(cont’d)
* : This illustration shows K20Z2 engine
08/08/21 14:23:35 61SNR030_110_0219
ProCarManuals.com
DYNOMITE -2009-


11-220PGM-FI System
Injector Replacement (cont’d)
A
B
C
D
E
F G
22 N·m
(2.2 kgf·m, 16 lbf·ft)
10. Coat the new O-rings (A) with clean engine oil, and insert the injectors (B) into the fuel rail (C).
11. Install the injector clips (D).
12. Coat the injector O-rings (E) with clean engine oil.
13. Install the fuel rail and the injectors in the injector base (F).
14. Install the fuel rail mounting nuts (G).
15. Connect the connectors on the injectors, and reinstall the ground cable bolt (G
101).
16. Connect the quick-connect fittings.
17. Turn the ignition switch to ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel rail is pressurized. Repeat this two or three times, then check for fuel leakage.
18. Install the engine cover.
* : This illustration shows K20Z2 engine
08/08/21 14:23:35 61SNR030_110_0220
ProCarManuals.com
DYNOMITE -2009-


(#'

 ) 
(#'
 )
11-22211-222 PGM-FI System
CMP Sensor B Replacement
CKP Sensor Replacement
C
B
A 12 N·m
(1.2 kgf·m,
8.7 lbf·ft)
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
A B
C
1. Remove the air cleaner (see page 11-345).
2. K20Z2 engine: Remove the EGR valve (see page
11-370).
3. Disconnect the CMP sensor B 3P connector (A).
4. Remove CMP sensor B.
5. Install the parts in the reverse order of removal with a new O-ring (C). 1. Disconnect the CKP sensor 3P connector (A).
2. Remove the CKP sensor (B).
3. Install the parts in the reverse order of removal
with a new O-ring (C).
4. Do the CKP pattern clear/CKP pattern learn procedure with the HDS (see page 11-4).
08/08/21 14:23:36 61SNR030_110_0222
ProCarManuals.com
DYNOMITE -2009-