2006 ACURA CSX Service Repair Manual

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Page 449 of 2893

ACURA CSX 2006 Service Repair Manual µ

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DTC P0325:
11-12611-126PGM-FI System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR C (44P)
K

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DTC P0325:
11-12611-126PGM-FI System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR C (44P)
KS (RED/BLU)
72. 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. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 71. If the ECM/PCM was substituted,
go to step 1.
Go to step 73.
73. Monitor the OBD STATUS for DTC P0301, P0302, P0303, or P0304 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 72, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the ignition coil,
the injector, and the ECM/PCM. If the ECM/PCM
was updated, substitute a known-good ECM/PCM
(see page 11-7), then go to step 71. If the ECM/PCM
was substituted, go to step 1. If the screen indicates
EXECUTING, keep driving until a result comes on. If
the screen indicates OUT OF CONDITION, go to
step 71. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine. Hold the engine speed between 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.
4. Hold the engine speed between 3,000 4,000 rpm for at least 10 seconds.
5. Check for Temporary DTCs or DTCs with the HDS.
Go to step 6.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the knock sensor and the ECM/PCM.
6. Turn the ignition switch to LOCK (0).
7. Jump the SCS line with the HDS.
8. Disconnect the knock sensor 1P connector (see page 11-223).
9. Disconnect ECM/PCM connector C (44P).
10. Check for continuity between ECM/PCM connector terminal C42 and body ground.Knock Sensor Circuit Malfunction
Terminal side of female terminals
Is DT C P0301, P0302, P0303, or P0304indicated?
Does t he scr een i nd i cat e PASSE D? I s DT C P0325 i nd i cat ed ?
08/08/21 14:18:52 61SNR030_110_0126
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11-127
KNOCK SENSOR 1P CONNECTOR
JUMPER WIRE
KS (RED/BLU)
ECM/PCM CONNECTOR C (44P) KS (RED/BLU)
Repair short in the wire betwe

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DTC P0335:
11-12811-128PGM-FI System
DTC Troubleshooting (cont’d)
CKP SENSOR 3

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DTC P0335:
11-12811-128PGM-FI System
DTC Troubleshooting (cont’d)
CKP SENSOR 3P CONNECTOR
IGP (YEL/BLK)
21. Update the ECM/PCM if it does not have the latestsoftware (see page 11-227), or substitute a known-
good ECM/PCM (see page 11-7).
22. Hold the engine speed between 3,000 4,000 rpm for at least 10 seconds.
23. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the knock sensor and the ECM/PCM. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then go to step 22.
If the ECM/PCM was substituted, go to step 1.
Go to step 24.
24. Monitor the OBD STATUS for DTC P0325 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 23, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the knock sensor
and the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 22. If the ECM/PCM was substituted,
go to step 1. If the screen indicates NOT
COMPLETED, go to step 22. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the CKP sensor and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the CKP sensor 3P connector.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between CKP sensor 3P connector terminal No. 3 and body ground.
Go to step 9.
Repair open in the wire between the CKP
sensor and PGM-FI main relay 1, then go to step 19.CKP Sensor No Signal
Wire side of female terminals
I s DT C P0325 i nd i cat ed ?
Does t he scr een i nd i cat e PASSE D? Is DT C P0335 ind icated ?
Is there battery voltage?
08/08/21 14:18:53 61SNR030_110_0128
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Page 452 of 2893

ACURA CSX 2006 Service Repair Manual

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11-129
CKP SENSOR 3P CONNECTOR
CKP (BLU/YEL)
CKP SENSOR 3P CONNECTOR IGP (YEL/BLK)
LG (BRN/YEL) ECM/PCM CONNECTOR C (44P)
CKP (BLU/YEL)

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11-130
PGM-FI System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR C (44P)
CKP (BLU/YEL)
16. Check for continuity between ECM/PCM connectorterminal

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DTC P0339:
YES
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YES
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YES
NO YES
NO
YES
NO
11-131
CKP Sensor Circuit Intermittent
Interruption
NOTE: Befor

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11-131
CKP Sensor Circuit Intermittent
Interruption
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine, and let it idle for 10 seconds.
4. Check the CKP NOISE in the DATA LIST with the HDS.
Go to step 7.
Go to step 5.
5. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
ENGINE S PEED
VSS
6. Check the CKP NOISE in the DATA LIST with the HDS.
Go to step 7.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the CKP sensor and the ECM/PCM.
7. Check for poor connections or loose terminals at these locations:
CKP sensor
ECM/PCM
Engine ground
Body ground
Go to step 8.
Repair or replace the connections or the
terminals, then go to step 11. 8. Remove the cam chain case (see step 13 on page
6-19), then check for damage on the CKP sensor
pulser plate.
Replace the CKP sensor pulser plate
(see page 6-34), then go to step 11.
Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Replace the CKP sensor (see page 11-222).
11. Turn the ignition switch to ON (II).
12. Reset the ECM/PCM with the HDS.
13. Clear the CKP pattern with the HDS.
14. Do the ECM/PCM idle learn procedure (see page 11-310).
15. Do the CKP pattern learn procedure (see page 11-4).
16. Start the engine, and let it idle for 10 seconds.
17. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the CKP sensor and the ECM/PCM,
then go to step 1.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.
Ar e 0 counts indicated?
Ar e 0 counts indicated?
Ar e t he connect i ons and t er mi nal s OK ? Is the pulser plate damaged?
Is DT C P0339 ind icated ?
08/08/21 14:18:54 61SNR030_110_0131
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DYNOMITE -2009-

Page 455 of 2893

ACURA CSX 2006 Service Repair Manual

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DTC P0365:
YES
NO
YES
NO YES
NO
YES
NO
11-132PGM-FI System
DTC Troubleshooting (cont’d)
CMP SENSOR B

Page 456 of 2893

ACURA CSX 2006 Service Repair Manual
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11-133
ECM/PCM CONNECTOR C (44P)
CMPB (GRN) CMPB (GRN)
ECM/PCM CONNECTOR C (44P)
CMPB (GRN)
CMP SENSOR B 3P CONNECTOR
11. Turn the ignition switch to LOCK (0).
1

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