Acura CSX. Manual — part 151
01
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11-277
A
8. Monitor the OBD STATUS for DTC P0011 in the
DTCs MENU with the HDS.
Go to step 9.
If the screen indicates PASSED, intermittent
failure, the system is OK at this time. If the screen
indicates NOT COMPLETED, go to step 5 and
recheck.
9. Turn the ignition switch to LOCK (0).
10. Remove the auto-tensioner (see page 4-32).
11. Remove the VTC strainer (A), and check it for
clogging.
Go to step 12.
Clean the VTC strainer, replace the engine oil
filter and the engine oil, then go to step 14.
12. Test the VTC oil control solenoid valve (see page
11-294).
Go to step 13.
Replace the VTC oil control solenoid valve
(see page 11-294), then go to step 14.
13. Inspect the VTC actuator (see page 6-11).
Go to step 14.
Replace the VTC actuator (see page 6-42),
then go to step 14.
14. Turn the ignition switch to ON (II).
15. Reset the ECM/PCM with the HDS.
16. Clear the CKP pattern with the HDS.
17. Do the ECM/PCM idle learn procedure (see page
11-310).
18. Do the CKP pattern learn procedure (see page 11-4).
19. Do the VTC TEST in the INSPECTION MENU with
the HDS.
20. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the VTC oil control solenoid valve and
the ECM/PCM, then go to step 1.
Go to step 21.
Does the scr een indicate F AILED?
Is the str ainer OK ?
Is the V T C oil contr ol solenoid valve OK ?
Is the V T C actuator OK ?
Is DT C P0011 indicated?
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01
SNR9AA7K72100090340FAAT10
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DTC P0340:
11-278
11-278
VTEC/VTC
CMP SENSOR A 3P CONNECTOR
IG1 (BLK/YEL)
21. Monitor the OBD STATUS for DTC P0011 in the
DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 20,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the VTC oil
control solenoid valve and the ECM/PCM, then go
to step 1. If the screen indicates NOT COMPLETED,
go to step 19 and recheck.
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 CMP sensor A and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect CMP sensor A 3P connector.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between CMP sensor A 3P
connector terminal No. 3 and body ground.
Go to step 9.
Repair open in the wire between CMP sensor
A and the No. 3 ALTERNATOR (10 A) fuse then go
to step 18.
CMP Sensor A No Signal
Wire side of female terminals
Does the scr een indicate PASSED?
Is DT C P0340 indicated?
Is ther e batter y voltage?
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YES
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11-279
CMPA (BLU/WHT)
CMP SENSOR A 3P CONNECTOR
IG1
(BLK/YEL)
LG
(BRN/YEL)
CMP SENSOR A 3P CONNECTOR
ECM/PCM CONNECTOR C (44P)
CMPA (BLU/WHT)
9. Measure the voltage between CMP sensor A 3P
connector terminal No. 1 and body ground.
Go to step 10.
Go to step 11.
10. Measure the voltage between CMP sensor A 3P
connector terminals No. 2 and No. 3.
Go to step 16.
Repair open in the wire between CMP sensor
A and G101; A/T model (see page 22-16), M/T
model (see page 22-18), then go to step 18.
11. Turn the ignition switch to LOCK (0).
12. Jump the SCS line with the HDS.
13. Disconnect ECM/PCM connector C (44P).
14. Check for continuity between ECM/PCM connector
terminal C41 and body ground.
Repair short in the wire between the ECM/
PCM (C41) and CMP sensor A, then go to step 18.
Go to step 15.
Wire side of female terminals
Wire side of female terminals
Terminal side of female terminals
Is ther e about 5 V ?
Is ther e batter y voltage?
Is ther e continuity?
08/08/21 14:28:23 61SNR030_110_0279
05
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YES
NO
YES
NO
YES
NO
11-280
VTEC/VTC
ECM/PCM CONNECTOR C (44P)
CMPA (BLU/WHT)
CMP SENSOR A 3P CONNECTOR
CMPA (BLU/WHT)
15. Check for continuity between CMP sensor A 3P
connector terminal No. 1 and ECM/PCM connector
terminal C41.
Go to step 23.
Repair open in the wire between the ECM/
PCM (C41) and CMP sensor A, then go to step 18.
16. Turn the ignition switch to LOCK (0).
17. Replace CMP sensor A (see page 11-295).
18. Reconnect all connectors.
19. Turn the ignition switch to ON (II).
20. Reset the ECM/PCM with the HDS.
21. Do the ECM/PCM idle learn procedure (see page
11-310).
22. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at CMP sensor A 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.
23. Reconnect all connectors.
24. 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).
25. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at CMP sensor A and the ECM/PCM. If the
ECM/PCM was updated, substitute a known-good
ECM/PCM (see page 11-7), then recheck. If the
ECM/PCM was substituted, go to step 1.
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 are indicated,
go to the indicated DTC’s troubleshooting.
Wire side of female terminals
Terminal side of female terminals
Is ther e continuity?
Is DT C P0340 indicated?
Is DT C P0340 indicated?
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