2006 ACURA CSX sensor

Î
Î(#')
11-374EVAP System
Component Location Index
EVAPORATIVE EMISSION (EVAP)
CANISTER PURGE VALVE
ENGINE CONTROL MODULE (ECM)/
POWERTRAIN CONTROL MODULE (PCM)
FUEL TANK PRESSURE
(FTP) SENSOR EVAPORATIVE EMISSION (EVAP)
CANISTER VENT SHUT VALVE
FUEL TANK VAPOR CONTROL VALVE
EVAPORATIVE EMISSION
(EVAP) CANISTER FUEL FILL CAP
Replacement, page 11-409
Update, page 11-227
Substitution, page 11-7
Replacement, page 11-228
* : This illustration shows K20Z2 engine.
Replacement, page 11-408 Replacement, page 11-409
Replacement, page 11-407
08/08/21 14:32:32 61SNR030_110_0374
ProCarManuals.com
DYNOMITE -2009-

(#' 

)
µ
µ
µ
µ µ
µ
DTC P0451:
YES
NO
YES
NO YES
NO
11-379
FTP Sensor Circuit Range/
Performance Problem
NOTE:
 Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
 If DTC P2422 is stored at the same time as DTC P0451, troubleshoot DTC P2422 first, then recheck for DTC
P0451.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine, and let it idle for 1 minute.
4. Monitor the OBD STATUS for DTC P0451 in the DTCs MENU with the HDS.
Go to step 5.
If the screen indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals at the FTP
sensor and the ECM/PCM. If the screen indicates
NOT COMPLETED, keep idling until a result comes
on.
5. Turn the ignition switch to LOCK (0).
6. Replace the FTP sensor (see page 11-408).
7. Turn the ignition switch to ON (II).
8. Reset the ECM/PCM with the HDS.
9. Do the ECM/PCM idle learn procedure (see page 11-310).
10. Start the engine, then let it idle for 1 minute.
11. 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 12. 12. Monitor the OBD STATUS for DTC P0451 in the
DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 11,
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.
Does t he scr een i nd i cat e F AILE D?
Is DTC P0451 indicated? Does t he scr een i nd i cat e PASSE D?
08/08/21 14:32:33 61SNR030_110_0379
ProCarManuals.com
DYNOMITE -2009-

µµ µµµ µ

(#' 
)
µ
µ
µ
µ µ
µ
µ
µ
DTC P0452:
YES
NO
YES
NO YES
NO
YES
NO
11-380EVAP System
DTC Troubleshooting (cont’d)
FTP SENSOR 3P CONNECTOR
VCC6 (BLU)
FTP Sensor 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. Turn the ignition switch to LOCK (0).
4. Remove the fuel fill cap.
5. Turn the ignition switch to ON (II).
6. ChecktheFTPSENSORintheDATALISTwiththe HDS.
Go to step 10.
Go to step 7.
7. Install the fuel fill cap.
8. Start the engine, and let it idle.
9. Monitor the OBD STATUS for DTC P0452 in the DTCs MENU with the HDS.
Go to step 10.
If the screen indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals at the FTP
sensor and the ECM/PCM. If the screen indicates
NOT COMPLETED, go to step 4 and recheck. 10. Turn the ignition switch to LOCK (0).
11. Disconnect the FTP sensor 3P connector.
12. Turn the ignition switch to ON (II).
13. ChecktheFTPSENSORintheDATALISTwiththe
HDS.
Go to step 14.
Go to step 24.
14. Measure the voltage between FTP sensor 3P connector terminal No. 1 and body ground.
Go to step 20.
Go to step 15.
Wire side of female terminals
I s about 7 .3 k Pa ( 5 5 mmH g, 2.16 i n.H g), or 0.3 V or less indicated?
Does t he scr een i nd i cat e F AILE D? I s about 7 .3 k Pa ( 5 5 mmH g, 2.16 i n.H g), or
0.3 V or less indicated?
Is t her e about 5 V ?
08/08/21 14:32:34 61SNR030_110_0380
ProCarManuals.com
DYNOMITE -2009-



µ
µ µ
µ
YES
NO YES
NO
11-381
FTP SENSOR 3P CONNECTOR
VCC6 (BLU)
JUMPER WIRE
ECM/PCM CONNECTOR A (44P) VCC6
(RED) FTP SENSOR 3P CONNECTOR
FTP (LT GRN)
15. Turn the ignition switch to LOCK (0).
16. Jump the SCS line with the HDS.
17. Disconnect ECM/PCM connector A (44P).
18. Connect FTP sensor 3P connector terminal No. 1 tobody ground with a jumper wire.
19. Check for continuity between ECM/PCM connector terminal A19 and body ground.
Go to step 32.
Repair open in the wire between the ECM/
PCM (A19) and the FTP sensor, then go to step 26. 20. Turn the ignition switch to LOCK (0).
21. Jump the SCS line with the HDS.
22. Disconnect ECM/PCM connector A (44P).
23. Check for continuity between FTP sensor 3P
connector terminal No. 2 and body ground.
Repair short in the wire between the ECM/
PCM (A26) and the FTP sensor, then go to step 26.
Go to step 32.
(cont’d)
Wire side of female terminals
Terminal side of female terminals Wire side of female terminals
Is there continuity?
Is there continuity?
08/08/21 14:32:34 61SNR030_110_0381
ProCarManuals.com
DYNOMITE -2009-

µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO YES
NO
YES
NO
11-382EVAP System
DTC Troubleshooting (cont’d)
24. Turn the ignition switch to LOCK (0).
25. Replace the FTP sensor (see page 11-408).
26. Reconnect all connectors.
27. Turn the ignition switch to ON (II).
28. Reset the ECM/PCM with the HDS.
29. Do the ECM/PCM idle learn procedure (see page
11-310).
30. 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 31.
31. Monitor the OBD STATUS for DTC P0452 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 30,
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. 32. Reconnect all connectors.
33. 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).
34. Start the engine, and let it idle.
35. 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 34.
If the ECM/PCM was substituted, go to step 1.
Go to step 36.
36. Monitor the OBD STATUS for DTC P0452 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 35, 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 34. 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 P0452 indicated?
Does t he scr een i nd i cat e PASSE D? Is DTC P0452 indicated?
Does t he scr een i nd i cat e PASSE D?
08/08/21 14:32:35 61SNR030_110_0382
ProCarManuals.com
DYNOMITE -2009-



(#' 
)
µ
µ
µ
µ µ
µ
µ
µ
DTC P0453:
YES
NO
YES
NO YES
NO
YES
NO
11-383
FTP SENSOR 3P CONNECTOR
SG6
(BLK)
FTP
(LT GRN)
JUMPER WIRE
FTP SENSOR 3P CONNECTOR SG6
(BLK)
VCC6
(BLU)
FTP Sensor 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. Turn the ignition switch to LOCK (0).
4. Remove the fuel fill cap.
5. Turn the ignition switch to ON (II).
6. ChecktheFTPSENSORintheDATALISTwiththe HDS.
Go to step 10.
Go to step 7.
7. Install the fuel fill cap.
8. Start the engine, and let it idle.
9. Monitor the OBD STATUS for DTC P0453 in the DTCs MENU with the HDS.
Go to step 10.
If the screen indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals at the FTP
sensor and the ECM/PCM. If the screen indicates
NOT COMPLETED, go to step 4 and recheck.
10. Turn the ignition switch to LOCK (0).
11. Disconnect the FTP sensor 3P connector. 12. Connect FTP sensor 3P connector terminals No. 2
andNo.3withajumperwire.
13. Turn the ignition switch to ON (II).
14. ChecktheFTPSENSORintheDATALISTwiththe HDS.
Go to step 15.
Go to step 26.
15. Measure the voltage between FTP sensor 3P connector terminals No. 1 and No. 3.
Go to step 21.
Go to step 16.
(cont’d)
Wire side of female terminals
Wire side of female terminals
I s about 7 .3 k P a ( 5 5 mmH g, 2 .16 i n.H g), or 4.7 Vor more indicated?
Does t he scr een i nd i cat e F AILE D? I s about 7 .3 k P a ( 5 5 mmH g, 2 .16 i n.H g), or 4.7 V
or more indicated?
Is t her e about 5 V ?
08/08/21 14:32:35 61SNR030_110_0383
ProCarManuals.com
DYNOMITE -2009-




µ
µ µ
µ
YES
NO YES
NO
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 CONNECTOR
FTP
(LT GRN)
JUMPER WIRE
FTP (LT GRN)
ECM/PCM CONNECTOR A (44P)
16. Turn the ignition switch to LOCK (0).
17. Jump the SCS line with the HDS.
18. Disconnect ECM/PCM connector A (44P).
19. Connect FTP sensor 3P connector terminal No. 3 to
body ground with a jumper wire.
20. Check for continuity between ECM/PCM connector terminal A9 and body ground.
Go to step 34.
Repair open in the wire between the ECM/
PCM (A9) and the FTP sensor, then go to step 28. 21. Turn the ignition switch to LOCK (0).
22. Jump the SCS line with the HDS.
23. Disconnect ECM/PCM connector A (44P).
24. Connect FTP sensor 3P connector terminal No. 2 to
body ground with a jumper wire.
25. Check for continuity between ECM/PCM connector terminal A26 and body ground.
Go to step 34.
Repair open in the wire between the ECM/
PCM (A26) and the FTP sensor, then go to step 28.
Wire side of female terminals
Terminal side of female terminals Wire side of female terminals
Terminal side of female terminals
I s t her e cont i nui t y ? I s t her e cont i nui t y ?
08/08/21 14:32:36 61SNR030_110_0384
ProCarManuals.com
DYNOMITE -2009-

µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO YES
NO
YES
NO
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
ProCarManuals.com
DYNOMITE -2009-