Content .. 150 151 152 153 ..

Acura RSX Honda Integra. Manual - part 152

＊０１

＊０２

０３

−

YES

11-314

VTEC/VTC

DTC Troubleshooting (cont’d)

VTPSW

GND

ROCKER ARM OIL PRESSURE SWITCH
(VTEC OIL PRESSURE SWITCH) 2P CONNECTOR

VTPSW
(BLU/BLK)

ROCKER ARM OIL PRESSURE SWITCH
(VTEC OIL PRESSURE SWITCH) 2P CONNECTOR

ECM/PCM CONNECTOR B (24P)

VTPSW (BLU/BLK)

12. Check for continuity between rocker arm oil

pressure switch (VTEC oil pressure switch) 2P
connector terminals No. 1 and No. 2.

Go to step 13.

Replace the rocker arm oil pressure switch

(VTEC oil pressure switch) (see page 11-324).

13. Turn the ignition switch OFF.

14. Measure voltage between rocker arm oil pressure

switch (VTEC oil pressure switch) 2P connector
terminal No. 1 and body ground.

Repair open in the wire between the rocker

arm oil pressure switch (VTEC oil pressure switch)
and G101.

Go to step 15.

15. Measure voltage between ECM/PCM connector

terminal B9 and body ground.

Repair open in the wire between the ECM/

PCM (B9) and the rocker arm oil pressure switch
(VTEC oil pressure switch).

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).

Terminal side of male terminals

Wire side of female terminals

Is ther e continuity?

Is ther e batter y voltage?

05/06/27 17:40:18 61S6M040_110_0314

＊０１

＊０２

Ｓ６Ｍ６ＡＡＬＫ７２１０００９２６４７ＦＡＡＴ００

−

DTC P2647:

YES

11-315

VTPSW

GND

ROCKER ARM OIL PRESSURE SWITCH
(VTEC OIL PRESSURE SWITCH) 2P CONNECTOR

VTPSW
(BLU/BLK)

ROCKER ARM OIL PRESSURE SWITCH
(VTEC OIL PRESSURE SWITCH) 2P CONNECTOR

Rocker Arm Oil Pressure Switch

(VTEC Oil Pressure Switch) Circuit High
Voltage
(2005-2006 models)

1. Check the engine oil level.

Go to step 2.

Adjust the engine oil to the proper level, then

go to step 14.

2. Turn the ignition switch ON (II).

3. Clear the DTC with the HDS.

4. Do the VTEC TEST in the INSPECTION MENU with

the HDS.

Intermittent failure, sytem is OK at this time.

Check for poor connections or loose terminals at
the rocker arm oil pressure switch (VTEC oil
pressure switch) and the ECM/PCM.

Go to step 5.

5. Check the result of step 4.

• Rocker Arm Oil Pressure Switch (VTEC Oil

Pressure Switch) Failure

• Rocker Arm Oil Pressure Switch (VTEC Oil

Pressure Switch) Open

• Rocker Arm Oil Pressure Switch (VTEC Oil

Pressure Switch) SIG Line Open

• Rocker Arm Oil Pressure Switch (VTEC Oil

Pressure Switch) GND Line Open

Go to step 6.

Check for poor connections or loose terminals

at the rocker arm oil pressure switch (VTEC oil
pressure switch). If it is OK, replace the rocker arm
oil control solenoid (VTEC solenoid valve)
(see page 11-324), then go to step 14.

6. Turn the ignition switch OFF.

7. Disconnect the rocker arm oil pressure switch

(VTEC oil pressure switch) 2P connector.

8. Check for continuity between rocker arm oil

pressure switch (VTEC oil pressure switch) 2P
connector terminals No. 1 and No. 2.

Go to step 9.

Replace the rocker arm oil pressure switch

(VTEC oil pressure switch) (see page 11-324), then
go to step 13.

9. Turn the ignition switch ON (II).

10. Measure voltage between rocker arm oil pressure

switch (VTEC oil pressure switch) terminal No. 1
and body ground.

Repair open in the wire between the rocker

arm oil pressure switch (VTEC oil pressure switch)
and G101, then go to step 13.

Go to step 11.

(cont’d)

Terminal side of male terminals

Wire side of female terminals

Is the level OK ?

Is the r esult OK ?

Is the test r esult one of the conditions above?

Is ther e continuity?

Is ther e batter y voltage?

05/06/27 17:40:18 61S6M040_110_0315

０３

−

YES

11-316

VTEC/VTC

DTC Troubleshooting (cont’d)

ECM/PCM CONNECTOR B (24P)

VTPSW (BLU/BLK)

11. Measure voltage between ECM/PCM connector

terminal B11 and body ground.

Repair open in the wire between the ECM/

PCM (B11) and the rocker arm oil pressure switch
(VTEC oil pressure switch), then go to step 12.

Go to step 19.

12. Turn the ignition switch OFF.

13. Reconnect the rocker arm oil pressure switch

(VTEC oil pressure switch) 2P connector.

14. Turn the ignition switch ON (II).

15. Reset the ECM/PCM with the HDS.

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

11-349).

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

If DTC P2647 is indicated, check for poor

connections or loose terminals at the rocker arm oil
pressure switch (VTEC oil pressure switch) 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 18.

18. Monitor the OBD STATUS for DTC P2647 in the

DTCs MENU with the HDS.

Troubleshooting is complete.

If the screen indicates FAILED, go to step 1

and recheck. If the screen indicates NOT
COMPLETED, go to step 16, and recheck.

19. Update the ECM/PCM if it does not have the latest

software, or substitute a known-good ECM/PCM
(see page 11-6).

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

If DTC P2647 is indicated, check for poor

If the ECM/PCM was updated, troubleshooting

is complete. If the ECM/PCM was substituted,
replace the original ECM/PCM (see page 11-284).

Wire side of female terminals

Is ther e batter y voltage?

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

Does the scr een indicate PASSED?

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

05/06/27 17:40:19 61S6M040_110_0316

−

＊０１

０２

Ｓ６Ｍ６ＡＡＬＫ７２１０００９２６４８ＦＡＡＴ００

−

DTC P2648:

YES

11-317

ROCKER ARM OIL CONTROL SOLENOID
(VTEC SOLENOID VALVE) 2P CONNECTOR

ECM/PCM CONNECTOR B (24P)

VTS (GRN/YEL)

Rocker Arm Oil Control Solenoid

(VTEC Solenoid Valve) Circuit Low Voltage
(2005-2006 models)

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Do the VTEC TEST in the INSPECTION MENU with

the HDS.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the rocker arm oil control solenoid (VTEC solenoid
valve) and the ECM/PCM.

Go to step 4.

4. Turn the ignition switch OFF.

5. Disconnect the rocker arm oil control solenoid

(VTEC solenoid valve) 2P connector.

6. Measure resistance between rocker arm oil control

solenoid (VTEC solenoid valve) 2P connector
terminals No. 1 and No. 2.

Go to step 7.

Go to step 10.

7. Jump the SCS line with the HDS.

8. Disconnect ECM/PCM connector B (24P).

9. Check for continuity between ECM/PCM connector

terminal B6 and body ground.

Repair short in the wire between the ECM/

PCM (B6) and the rocker arm oil control solenoid
(VTEC solenoid valve), then go to step 11.

Go to step 18.

10. Replace the rocker arm oil control solenoid (VTEC

solenoid valve) (see page 11-324).

11. Reconnect all connectors.

12. Turn the ignition switch ON (II).

13. Reset the ECM/PCM with the HDS.

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

11-349).

15. Do the VTEC TEST in the INSPECTION MENU with

the HDS.

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

If DTC P2648 is indicated, check for poor

connections or loose terminals at the rocker arm oil
control solenoid (VTEC solenoid valve) 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 17.

(cont’d)

Terminal side of male terminals

Wire side of female terminals

Is the r esult OK ?

Is ther e 14

at r oom temper atur e?

Is ther e continuity?

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

05/06/27 17:40:19 61S6M040_110_0317

Content .. 150 151 152 153 ..