2006 ACURA CSX Service Repair Manual

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Page 713 of 2893

ACURA CSX 2006 Service Repair Manual

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11-384EVAP System
DTC Troubleshooting (cont’d)
FTP SENSOR 3P CONNECTOR
SG6
(BLK)
JUMPER WIRE
SG6
(BLK)
ECM/PCM CONNECTOR A (44P) FTP SENSOR 3P CONNEC

Page 714 of 2893

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11-385
26. Turn the ignition switch to LOCK (0).
27. Replace the FTP sensor (see page 11-408).
28. Reconnect all connectors.
29. Turn the ig

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11-385
26. Turn the ignition switch to LOCK (0).
27. Replace the FTP sensor (see page 11-408).
28. Reconnect all connectors.
29. Turn the ignition switch to ON (II).
30. Reset the ECM/PCM with the HDS.
31. Do the ECM/PCM idle learn procedure (see page
11-310).
32. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the FTP sensor and the ECM/PCM, then
go to step 1.
Go to step 33.
33. Monitor the OBD STATUS for DTC P0453 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 32,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the FTP sensor
and the ECM/PCM, then go to step 1. If the screen
indicates NOT COMPLETED, keep idling until a
result comes on. 34. Reconnect all connectors.
35. 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).
36. Start the engine, and let it idle.
37. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the FTP 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 36.
If the ECM/PCM was substituted, go to step 1.
Go to step 38.
38. Monitor the OBD STATUS for DTC P0453 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 37, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the FTP 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 36. If the ECM/PCM was substituted,
go to step 1. If the screen indicates NOT
COMPLETED, keep idling until a result comes on.
Is DTC P0453 indicated?
Does t he scr een i nd i cat e PASSE D? Is DTC P0453 indicated?
Does t he scr een i nd i cat e PASSE D?
08/08/21 14:32:36 61SNR030_110_0385
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Page 715 of 2893

ACURA CSX 2006 Service Repair Manual µ

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DTC P0455:
DTC P0456:
Special Tools Required
YES
NO YES
NO
YES
NO
11-386EVAP System
DTC Troubleshooting (cont’d)
A

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DTC P0455:
DTC P0456:
Special Tools Required
YES
NO YES
NO
YES
NO
11-386EVAP System
DTC Troubleshooting (cont’d)
AB
C
EVAP System Large Leak
Detected
EVAP System Very Small Leak
Detected
The fuel system is designed to allow specified
maximum vacuum and pressure conditions. Do not
deviate from the vacuum and pressure tests as
indicated in these procedures. Excessive pressure/
vacuum would damage the EVAP components or
cause eventual fuel tank failure.
Vacuum pump/gauge, 0 30 in.Hg, Snap-on YA4000A
or equivalent, commercially available
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
Fresh fuel has a higher volatility that will create greater pressure/vacuum. The optimum condition for
testing is less than a full tank of fresh fuel. If possible,
to assist in leak detection, add 1 gallon of fresh fuel to
the tank (as long as it will not fill the tank), just before
starting these procedures.
1. Check the fuel fill cap (the cap must say TIGHTEN TO CLICK). It should turn 1/4 turn after it’s tight,
then it clicks.
Go to step 2.
Replace or tighten the cap, then go to step 30. 2. Check the fuel fill cap seal (A) and the fuel fill pipe
mating surface (B). Verify that the fuel fill cap tether
cord (C) is not caught under the cap.
Replace the fuel fill cap or the fuel fill pipe,
then go to step 29.
Go to step 3.
3. Turn the ignition switch to ON (II).
4. Clear the DTC with the HDS.
5. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister purge valve, or
the EVAP canister vent shut valve and the ECM/
PCM.
Go to step 6.
Is the correct f uel f ill cap installed and properlytightened? Is the f uel f ill cap seal missing or damaged, is the
f uel f i l l pi pe d amaged , or i s t he t et her cor d caughtund er the cap?
Is the result OK ?
08/08/21 14:32:36 61SNR030_110_0386
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Page 716 of 2893

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11-387
AD
B C
D A
B
6. Turn the ignition switch to LOCK (0).
7. Check for a poor connection or damage at the fuel
tank vapor recirculation tube.

Page 717 of 2893

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11-388
EVAP System
DTC Troubleshooting (cont’d)
A
B
C
A B
15. Turn the ignition switch to LOCK (0).
16. Disconnect the vacuum pump/gauge from

Page 718 of 2893

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11-389
A
B
C
23. Reconnect the vacuum hose (engine side) (A) to theEVAP canister purge valve (B) and disconnect the
vacuum hose (EVAP ca

Page 719 of 2893

ACURA CSX 2006 Service Repair Manual

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DTC P0457:
YES
NO
YES
NO YES
NO
YES
NO
11-390
EVAP System
DTC Troubleshooting (cont’d)
A
B
C A
EVAP System

Page 720 of 2893

ACURA CSX 2006 Service Repair Manual (#
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DTC P0496:
11-39111-391
12. Turn the ignition switch to LOCK (0).
13. Replace the EVAP ca

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DTC P0496:
11-39111-391
12. Turn the ignition switch to LOCK (0).
13. Replace the EVAP canister vent shut valve
(see page 11-409).
14. Turn the ignition switch to ON (II).
15. Reset the ECM/PCM with the HDS.
16. Do the ECM/PCM idle learn procedure (see page 11-310).
17. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Troubleshooting is complete.
Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister vent shut
valve, and the ECM/PCM, then go to step 1.
18. Reinstall the EVAP canister vent shut valve.
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. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Troubleshooting is complete.
Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister vent shut
valve, and the ECM/PCM, then go to step 1. 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. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the ECM/
PCM.
Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Replace the EVAP canister purge valve (see page 11-409).
6. Turn the ignition switch to ON (II).
7. Reset the ECM/PCM with the HDS.
8. Do the ECM/PCM idle learn procedure (see page 11-310).
9. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.
Troubleshooting is complete.
Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the ECM/
PCM, then go to step 1.EVAP System High Purge Flow
Detected
Is the result OK ?
Is the result OK ? Is the result OK ?
Is the result OK ?
08/08/21 14:33:20 61SNR030_110_0391
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