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Acura CSX. Manual - part 150

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11-273

VTEC/VTC

Component Location Index

VTC STRAINER

VTC OIL CONTROL SOLENOID VALVE

ROCKER ARM OIL CONTROL VALVE

ROCKER ARM OIL PRESSURE SWITCH

CAMSHAFT POSITION (CMP) SENSOR A
(INTAKE SIDE)

ENGINE CONTROL MODULE (ECM)/
POWERTRAIN CONTROL MODULE (PCM)

Removal/Test/Installation, page 11-294

Removal/Installation, page 11-296

Replacement, page 11-295

Update, page 11-227
Substitution, page 11-7
Replacement, page 11-228

* : This illustration shows K20Z2 engine

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０１

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DTC P0010:

YES

11-274

VTEC/VTC

DTC Troubleshooting

VTC OIL CONTROL SOLENOID VALVE 2P CONNECTOR

GND (BLK)

VTC OIL CONTROL SOLENOID VALVE 2P CONNECTOR

VTC Oil Control Solenoid Valve

Malfunction

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. Start the engine. Hold the engine speed at

3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.

4. Do the VTC TEST 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 VTC oil control solenoid valve and the ECM/
PCM.

6. Turn the ignition switch to LOCK (0).

7. Disconnect the VTC oil control solenoid valve 2P

connector.

8. At the solenoid valve side, measure the resistance

between VTC oil control solenoid valve 2P
connector terminals No. 1 and No. 2.

Go to step 9.

Go to step 14.

9. Check for continuity between VTC oil control

solenoid valve 2P connector terminal No. 1 and
body ground.

Go to step 10.

Repair open in the wire between the VTC oil

control solenoid valve and G101; A/T model
(see page 22-16), M/T model (see page 22-18), then
go to step 15.

10. Jump the SCS line with the HDS.

11. Disconnect ECM/PCM connector C (44P).

Terminal side of male terminals

Wire side of female terminals

Is DT C P0010 indicated?

Is ther e 6.7 5

8.25

at r oom temper atur e?

Is ther e continuity?

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YES

11-275

ECM/PCM CONNECTOR C (44P)

VTC (BLU/WHT)

VTC OIL CONTROL SOLENOID VALVE 2P CONNECTOR

ECM/PCM CONNECTOR C (44P)

VTC (BLU/WHT)

12. Check for continuity between ECM/PCM connector

terminal C23 and body ground.

Repair short in the wire between the ECM/

PCM (C23) and the VTC oil control solenoid valve,
then go to step 15.

Go to step 13.

13. Check for continuity between VTC oil control

solenoid valve 2P connector terminal No. 2 and
ECM/PCM connector terminal C23.

Go to step 22.

Repair open in the wire between the ECM/

PCM (C23) and the VTC oil control solenoid valve,
then go to step 15.

14. Replace the VTC oil control solenoid valve

(see page 11-294).

15. Reconnect all connectors.

16. Turn the ignition switch to ON (II).

17. Reset the ECM/PCM with the HDS.

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

11-310).

19. Do the VTC TEST in the INSPECTION MENU with

the HDS.

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

Check for poor connections or loose

terminals at the VTC oil control solenoid valve and
the ECM/PCM, then go to step 1.

Go to step 21.

21. Monitor the OBD STATUS for DTC P0010 in the

DTCs MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 20,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

connections or loose terminals at the VTC oil
control solenoid valve and the ECM/PCM, then go
to step 1. If the screen indicates NOT COMPLETED,
go to step 19.

Terminal side of female terminals

Wire side of female terminals

Terminal side of female terminals

Is ther e continuity?

Is DT C P0010 indicated?

Does the scr een indicate PASSED?

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YES

DTC P0011:

11-276

VTEC/VTC

22. Reconnect all connectors.

23. 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).

24. Do the VTC TEST in the INSPECTION MENU with

the HDS.

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

Check for poor connections or loose

terminals at the VTC oil control solenoid 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 24. If the ECM/PCM was substituted,
go to step 1.

Go to step 26.

26. Monitor the OBD STATUS for DTC P0010 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 25, go to the indicated
DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

connections or loose terminals at the VTC oil
control solenoid 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 24. If the
ECM/PCM was substituted, go to step 1. If the
screen indicates NOT COMPLETED, go to step 24.

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. Start the engine.

4. Watch the low oil pressure indicator with the

engine running.

Check the engine oil level. If the oil level is

OK, check the oil pressure (see page 8-10), then go
to step 15.

Go to step 5.

5. Do the VTC TEST in the INSPECTION MENU with

the HDS.

Go to step 6.

Go to step 9.

6. Test-drive at a steady speed between 40

120 km/h

(25

75 mph) for 10 minutes.

7. Check the VTC STATUS in the DATA LIST with the

HDS.

Go to step 8.

Go to step 6 and recheck.

VTC System Malfunction

Is DT C P0010 indicated?

Does the scr een indicate PASSED?

Is the low oil pr essur e indicator on?

Is the r esult OK ?

Does it indicate ON?

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