ACURA CSX 2006 Service Repair Manual

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DTC P0497:
Special Tools Required
YES
NO
YES
NO
YES
NO YES
NO
11-392EVAP System
DTC Troubleshooting (cont’d)
A
C
07JAZ-001000B
B
EVAP System Low Purge Flow
Detected
 Vacuum/pressure gauge, 0 4 in.Hg, 07JAZ-001000B
 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). 1. Check the fuel fill cap installation (The cap must say TIGHTEN TO CLICK. The cap should tighten 1/4 turn
after it is tight.).
Go to step 2.
Properly install the fuel fill cap, then go to
step 23.
2. Turn the ignition switch to ON (II).
3. Clear the DTC with the HDS.
4. 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 5.
5. Check for a loose or damaged EVAP canister purge line between the intake manifold and the EVAP
canister purge valve.
Go to step 6.
Reconnect or repair the EVAP canister purge
line, then go to step 23. 6. Disconnect the vacuum hose (A) from the EVAP
canister purge valve (B) in the engine compartment,
and connect a T-fitting (C) between the vacuum
gauge, the vacuum pump/gauge, 0 30 in.Hg, and
the vacuum hose as shown.
7. Select EVAP PCS ON in the INSPECTION MENU with the HDS.
8. Slowly apply about 2 kPa (15 mmHg, 0.6 in.Hg) of vacuum to the hose.
Replace the EVAP canister purge valve, then
go to step 22.
Go to step 9.
Is the f uel f ill cap installed and properlytightened?
Is the result OK ?Is the line OK ? Does i t hol d v acuum?
08/08/21 14:33:20 61SNR030_110_0392
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YES
NO
11-393
A 07JAZ-001000B
A B
9. Reconnect the vacuum hose to the EVAP canister
purge valve.
10. Disconnect the vacuum hose from the purge line (at the EVAP canister side), and connect a T-fitting (A)
between the vacuum gauge and the vacuum pump/
gauge, 0 30 in.Hg, as shown.
11. Select EVAP PCS ON in the INSPECTION MENU with the HDS.
12. Slowly apply about 2 kPa (15 mmHg, 0.6 in.Hg) of vacuum to the hose.
Check for a restricted EVAP canister purge
line between the EVAP canister purge valve and the
EVAPcanister,thengotostep22.
Go to step 13. 13. Remove the FTP sensor with its connector
connected (see page 11- 408).
14. Connect a T-fitting (A) between the vacuum pump/ gauge, 0 30 in.Hg, the vacuum pump, and the FTP
sensor (B) as shown.
15. Check and record the FTP SENSOR reading in the DATA LIST with the HDS.
16. Slowly apply about 1.3 kPa (10 mmHg, 0.4 in.Hg) of vacuum to the hose.
(cont’d)
Does i t hol d v acuum?
08/08/21 14:33:21 61SNR030_110_0393
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YES
NO
YES
NO
YES
NO
11-394EVAP System
DTC Troubleshooting (cont’d)
C
A
B
07JAZ-00100B
17. ChecktheFTPSENSORintheDATALISTwiththe
HDS.
Go to step 18.
Replace the FTP sensor (see page 11-408),
then go to step 22.
18. Reconnect the vacuum hoses to the EVAP canister purge line (EVAP canister side), and reinstall the
FTP sensor.
19. Disconnect the vacuum hose (purge line) (A) from the EVAP canister purge valve (B), and connect a
T-fitting (C) between the vacuum gauge and the
vacuum pump/gauge, 0 30 in.Hg, as shown.
20. Select EVAP CVS ON in the INSPECTION MENU with the HDS. 21. Slowly apply about 2 kPa (15 mmHg, 0.6 in.Hg) of
vacuum to the hose.
Check for a blockage at the EVAP canister
port, then go to step 22.
Replace the EVAP canister vent shut valve
(see page 11-409), then go to step 22.
22. Reconnect all hoses.
23. Turn the ignition switch to ON (II).
24. Reset the ECM/PCM with the HDS.
25. Do the ECM/PCM idle learn procedure (see page 11-310).
26. 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.
I s t he d i f f er ence mor e t han 1.1 k Pa ( 8 mmH g, 0.31 i n.H g) bef or e and af t er appl y i ng v acuum? Does t he hose hol d v acuum?
Is the result OK ?
08/08/21 14:33:21 61SNR030_110_0394
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DTC P0497:
Special Tools Required
YES
NO
YES
NO
11-395
A B
EVAP System Low Purge Flow
Detected
 Vacuum/pressure gauge, 0 4 in.Hg 07JAZ-001000B
 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). 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 and the ECM.
Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Check for poor connections, blockage, or damage at the EVAP canister purge line between the throttle
body and the EVAP canister.
Go to step 5.
Reconnect or repair the EVAP canister purge
line, then go to step 25. 6. Disconnect the vacuum hose (A) from the EVAP
canister purge valve (B).
(cont’d)
Is the result OK ?Is the line OK ?
08/08/21 14:33:21 61SNR030_110_0395
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YES
NO YES
NO
11-396EVAP System
DTC Troubleshooting (cont’d)
A
07JAZ-001000B
A
B
C 07JAZ-001000B
7. Disconnect the vacuum hose from the purge line (at
the EVAP canister side), and connect a T-fitting (A)
between the vacuum gauge and the vacuum pump/
gauge, 0 30 in.Hg, as shown.
8. Apply about 2 kPa (15 mmHg, 0.6 in.Hg) of vacuum to the hose.
9. Select EVAP PCS ON in the INSPECTION MENU with the HDS.
Go to step 15.
Go to step 10.
10. Select EVAP PCS OFF in the INSPECTION MENU with the HDS. 11. Disconnect the vacuum hose (A) from the EVAP
canister purge valve (B). Connect a T-fitting (C)
between the vacuum gauge and the vacuum pump/
gauge, 0 30 in.Hg, and the EVAP canister purge
valve as shown.
12. Apply about 2 kPa (15 mmHg, 0.6 in.Hg) of vacuum to the hose.
13. Turn the ignition switch to ON (II).
14. Select EVAP PCS ON in the INSPECTION MENU with the HDS.
Check for a blockage in the vacuum hose
between the EVAP canister purge valve and the
EVAPcanister,thengotostep25.
Replace the EVAP canister purge valve
(see page 11-409), then go to step 25.
Does t he v acuum r el ease i mmed i at el y ?
Does t he v acuum r el ease i mmed i at el y ?
08/08/21 14:33:22 61SNR030_110_0396
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YES
NO YES
NO
YES
NO
11-397
A
07JAZ-001000B A B
15. Connect the vacuum pump/gauge, 0 30 in.Hg, to
the vacuum hose (A) as shown.
16. Start the engine, and let it idle. Go to step 17.
Check for a blockage at the EVAP purge line
between the throttle body and the EVAP canister
purge valve, then go to step 25.
17. Turn the ignition switch to LOCK (0).
18. Remove the FTP sensor with its connector connected (see page 11- 408).
19. Connect a T-fitting (A) between the vacuum pump/ gauge, 0 30 in.Hg and connect the vacuum pump
and the FTP sensor (B) as shown. 20. Turn the ignition switch to ON (II).
21. Check and record the FTP SENSOR reading in the
DATA LIST with the HDS.
22. Slowly apply about 1.3 kPa (10 mmHg, 0.4 in.Hg) of vacuum to the hose.
23. ChecktheFTPSENSORintheDATALISTwiththe HDS.
Check for debris or blockage at the EVAP
canister port, then go to step 25.
Go to step 24.
24. Replace the FTP sensor (see page 11-408).
25. Reconnect all hoses.
26. Turn the ignition switch to ON (II).
27. Reset the ECM with the HDS.
28. Do the ECM idle learn procedure (see page 11-310).
29. 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 and the ECM, then go to step 1.
Is ther e v acuum? Does t he v al ue change?
Is the result OK ?
08/08/21 14:33:23 61SNR030_110_0397
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DTC P0498:
YES
NO
YES
NO YES
NO
YES
NO
11-398EVAP System
DTC Troubleshooting (cont’d)
B(PUR)
EVAP CANISTER VENT SHUT VALVE
2P CONNECTOR
EVAP CANISTER VENT SHUT VALVE
2P CONNECTOR
EVAP Canister Vent Shut Valve
Circuit Low Voltage
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. Check for Temporary DTCs or DTCs with the HDS.
Go to step 6.
Go to step 4.
4. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
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 EVAP canister vent shut valve and the ECM/
PCM.
6. Turn the ignition switch to LOCK (0).
7. Disconnect the EVAP canister vent shut valve 2P connector.
8. Turn the ignition switch to ON (II). 9. Measure the voltage between EVAP canister vent
shut valve 2P connector terminal No. 2 and body
ground.
Go to step 10.
Repair open in the wire between the EVAP
canister vent shut valve and the PGM-FI subrelay,
then go to step 18.
10. Turn the ignition switch to LOCK (0).
11. At the valve side, measure the resistance between EVAP canister vent shut valve 2P connector
terminals No. 1 and No. 2.
Go to step 12.
Go to step 17.
Wire side of female terminals
Terminal side of male terminals
Is DT C P0498 ind icated ? Is DT C P0498 ind icated ? Is there battery voltage?
Is t her e about 25 30 at r oom t emper at ur e?
08/08/21 14:33:23 61SNR030_110_0398
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YES
NO YES
NO
11-399
VSV
(LT GRN)
ECM/PCM CONNECTOR A (44P)
VSV (LT GRN)
EVAP CANISTER VENT SHUT VALVE
2P CONNECTOR
JUMPER WIRE VSV
(LT GRN)
ECM/PCM CONNECTOR A (44P)
12. Jump the SCS line with the HDS.
13. Disconnect ECM/PCM connector A (44P).
14. Check for continuity between ECM/PCM connector
terminal A10 and body ground.
Repair short in the wire between the EVAP
canister vent shut valve and the ECM/PCM (A10),
then go to step 18.
Go to step 15.
15. Connect EVAP canister vent shut valve 2P connector terminal No. 1 to body ground with a
jumper wire. 16. Check for continuity between ECM/PCM connector
terminal A10 and body ground.
Go to step 25.
Repair open in the wire between the EVAP
canister vent shut valve and the ECM/PCM (A10),
then go to step 18.
17. Replace the EVAP canister vent shut valve (see page 11-409).
18. Reconnect all connectors.
(cont’d)
Terminal side of female terminals
Wire side of female terminals Terminal side of female terminals
Is there continuity?
Is there continuity?
08/08/21 14:33:24 61SNR030_110_0399
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YES
NO
YES
NO
YES
NO
YES
NO
11-400EVAP System
DTC Troubleshooting (cont’d)
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. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
23. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the EVAP canister vent shut valve and
theECM/PCM,thengotostep1.
Go to step 24.
24. Monitor the OBD STATUS for DTC P0498 in the DTCs MENU with the HDS.
Troubleshooting is complete. 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 EVAP canister
vent shut valve and the ECM/PCM, then go to step
1. If the screen indicates NOT COMPLETED, go to
step 22. 25. Reconnect all connectors.
26. 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).
27. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
28. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the EVAP canister vent shut valve and
the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 27. If the ECM/PCM was substituted,
go to step 1.
Go to step 29.
29. Monitor the OBD STATUS for DTC P0498 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 28, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the EVAP canister
vent shut valve and the ECM/PCM. If the ECM/PCM
was updated, substitute a known-good ECM/PCM
(see page 11-7), then go to step 27. If the ECM/PCM
was substituted, go to step 1. If the screen indicates
NOT COMPLETED, go to step 27.
Is DT C P0498 ind icated ?
Does t he scr een i nd i cat e PASSE D? Is DT C P0498 ind icated ?
Does t he scr een i nd i cat e PASSE D?
08/08/21 14:33:24 61SNR030_110_0400
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DTC P0499:
YES
NO
YES
NO YES
NO
11-401
EVAP Canister Vent Shut Valve
Circuit High Voltage
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. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
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 EVAP canister vent shut valve and the ECM/
PCM.
5. 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).
6. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
7. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the EVAP canister vent shut valve and
the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 6. If the ECM/PCM was substituted,
go to step 1.
Go to step 8. 8. Monitor the OBD STATUS for DTC P0499 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
DTCswereindicatedinstep7,gototheindicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the EVAP canister
vent shut valve and the ECM/PCM. If the ECM/PCM
was updated, substitute a known-good ECM/PCM
(see page 11-7), then go to step 6. If the ECM/PCM
was substituted, go to step 1. If the screen indicates
NOT COMPLETED, go to step 6.
Is DT C P0499 ind icated ?
Is DT C P0499 ind icated ? Does t he scr een i nd i cat e PASSE D?
08/08/21 14:33:24 61SNR030_110_0401
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