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Acura RSX Honda Integra. Manual - part 181

０１

Ｓ６Ｍ６ＡＡＪＫ７２１０００９０４５２ＦＡＡＴ００

−

DTC P0452:

YES

11-430

EVAP System

DTC Troubleshooting (cont’d)

ECM/PCM CONNECTOR E (31P)

FTP (LT GRN)

FTP SENSOR 3P CONNECTOR

VCC3 (YEL/BLU)

SG3 (PNK)

FTP Sensor Circuit Low Voltage

(2002-2004 models)

1. Check the vacuum lines at the FTP sensor for

misrouting, leakage, breakage, or clogging.

Go to step 2.

Repair or replace vacuum lines as

necessary.

2. Reset the ECM/PCM (see page 11-4).

3. Remove the fuel fill cap.

4. Turn the ignition switch ON (II).

5. Monitor the FTP sensor voltage with the HDS, or

measure voltage between body ground and ECM/
PCM connector terminal E14.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the FTP sensor and the ECM/PCM.

Go to step 6.

6. Turn the ignition switch OFF.

7. Reinstall the fuel fill cap.

8. Disconnect the FTP sensor 3P connector.

9. Turn the ignition switch ON (II).

10. Measure voltage between FTP sensor 3P connector

terminals No. 1 and No. 2.

Go to step 11.

Repair open in the wire between the FTP

sensor and the ECM/PCM (E5).

Wire side of female terminals

Ar e the vacuum lines OK ?

Is ther e about 2.5 V ?

Is ther e about 5 V ?

05/06/27 17:43:13 61S6M040_110_0430

０２

０１

−

YES

11-431

SG3 (PNK)

FTP SENSOR 3P CONNECTOR

FTP (LT GRN)

FTP SENSOR 3P CONNECTOR

FTP (LT GRN)

11. Measure voltage between FTP sensor 3P connector

terminals No. 2 and No. 3.

Replace the FTP sensor (see page 11-473).

Go to step 12.

12. Turn the ignition switch OFF.

13. Disconnect ECM/PCM connector E (31P).

14. Check for continuity between FTP 3P connector

terminal No. 3 and body ground.

Repair short in the wire between the FTP

sensor and the ECM/PCM (E14).

Update the ECM/PCM if it does not have the

latest software, or substitute a known-good ECM/
PCM (see page 11-6), then recheck. If the symptom/
indication goes away with a known-good ECM/PCM,
replace the original ECM/PCM (see page 11-284).

Wire side of female terminals

Is ther e about 5 V ?

Is ther e continuity?

05/06/27 17:43:13 61S6M040_110_0431

−

０１

Ｓ６Ｍ６ＡＡＬＫ７２１０００９０４５２ＦＡＡＴ００

−

DTC P0452:

YES

11-432

EVAP System

DTC Troubleshooting (cont’d)

FTP SENSOR 3P CONNECTOR

VCC3
(YEL/BLU)

FTP Sensor Circuit Low Voltage

(2005-2006 models)

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Turn the ignition switch OFF.

4. Remove the fuel fill cap.

5. Turn the ignition switch ON (II).

6. Check the FTP SENSOR in the DATA LIST with the

HDS.

Go to step 10.

Go to step 7.

7. Install the fuel fill cap.

8. Start the engine.

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, 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 5 and recheck.

10. Turn the ignition switch OFF.

11. Disconnect the FTP sensor 3P connector.

12. Turn the ignition switch ON (II).

13. Check the FTP SENSOR in the DATA LIST with the

HDS.

Go to step 20.

Go to step 14.

14. Measure voltage between FTP sensor 3P connector

terminal No. 1 and body ground.

Go to step 16.

Go to step 15.

Wire side of female terminals

Is about

7 .3 kPa (

2.16 in.Hg,

55 mmHg),

0.3 V or less indicated?

Does the scr een indicate F AILED?

Is about 7 .3 kPa ( 2.15 in.Hg, 54.7 mmHg), 4.90 V
indicated?

Is ther e about 5 V ?

05/06/27 17:43:13 61S6M040_110_0432

０２

０３

−

YES

11-433

ECM/PCM CONNECTOR E (31P)

VCC3
(YEL/BLU)

FTP SENSOR 3P CONNECTOR

FTP
(LT GRN)

15. Measure voltage between ECM/PCM connector

terminal E5 and body ground.

Repair open in the wire between the ECM/

PCM (E5) and the FTP sensor, then go to step 22.

Go to step 28.

16. Turn the ignition switch OFF.

17. Jump the SCS line with the HDS.

18. Disconnect ECM/PCM connector E (31P).

19. Check for continuity between FTP sensor 3P

connector terminal No. 2 and body ground.

Repair short in the wire between the ECM/

PCM (E14) and the FTP sensor, then go to step 22.

Go to step 28.

20. Turn the ignition switch OFF.

21. Replace the FTP sensor (see page 11-473).

22. Reconnect all connectors.

23. Turn the ignition switch ON (II).

24. Reset the ECM/PCM with the HDS.

25. Do the ECM/PCM idle learn procedure (see page

11-349).

26. Check for Temporary DTCs or DTCs with the HDS.

If DTC P0452 is indicated, check for poor

connections or loose terminals at the FTP sensor
and the ECM/PCM, then go to step 1. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Go to step 27.

27. Monitor the OBD STATUS for DTC P0452 in the

DTCs MENU with the HDS.

Troubleshooting is complete.

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, go to step 25 and
recheck.

(cont’d)

Wire side of female terminals

Is ther e about 5 V ?

Is ther e continuity?

Ar e any T empor ar y DT Cs or DT Cs indicated?

Does the scr een indicate PASSED?

05/06/27 17:43:13 61S6M040_110_0433

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