DTC Troubleshooting

DTC Troubleshooting: P2261

DTC P2261: Turbocharger Bypass Control Valve Stuck Closed

Special Tools Required

- Vacuum pump/gauge, 0-30 in.Hg, Snap-on YA4000Aor equivalent, commercially available
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information. Initial Inspection and Diagnostic Overview

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

2. Clear the DTC with the HDS.

3. Select TURBOCHARGER BYPASS CONTROL SYSTEM TEST in the INSPECTION MENU with the HDS.

Is the result OK?
YES - Intermittent failure, the system is OK at this time.

NO - Go to step 4.


4. Select TURBOCHARGER BYPASS CONTROL SOLENOID VALVE ON in the INSPECTION MENU with the HDS.

Do you hear the solenoid operating?
YES - Go to step 5.

NO - Go to step 9.


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

6. Check for clogging at the air bypass outlet pipe. Service and Repair

Is the pipe OK?
YES - Go to step 8.

NO - Repair the pipe, then go to step 10.


7. Disconnect the vacuum/pressure hose (A) from the turbocharger bypass control valve (B), then connect the vacuum pump/gauge, 0-30 in.Hg, as shown.

8. Start the engine. Hold the engine speed at 3,000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.

Is there vacuum?
YES - Inspect the turbocharger bypass control valve. Testing and Inspection

NO - Go to step 9.






9. Replace the turbocharger bypass control solenoid valve. Service and Repair

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

11. Reset the PCM with the HDS.

12. Do the PCM idle learn procedure. PCM Idle Learn Procedure

13. Test-drive under these conditions:
- Engine speed above 4,500 rpm

- Accelerate with throttle fully open, then decelerate with throttle fully closed at least 3 seconds

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

Is DTC P2261 indicated?
YES - Check the turbocharger bypass control solenoid valve and its connecting hose, then go to step 1.

NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.