DTC Troubleshooting: P2261
DTC P2261: Turbocharger Bypass Control Valve Stuck Closed
Special Tools Required
Vacuum Pump/Gauge, 0?30 inHg Snap-on YA4000A or equivalent, commercially available
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P2261 Turbocharger Bypass Control Valve Stuck Closed
    

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Start the engine.

?4.
Hold the engine speed at 3,000 rpm without load (in neutral) until the radiator fan comes on.

?5.
Test-drive the vehicle for several minutes in the range of these recorded on-board snapshot parameters:
Engine Speed
Vehicle Speed
MAP Sensor (Hi Res)
REL TP Sensor
ECT Sensor 1
IAT Sensor (1)
Signal
Current conditions
Values
Unit
Engine Speed
    
Vehicle Speed
    
MAP Sensor (Hi Res)
    
REL TP Sensor
    
ECT Sensor 1
    
IAT Sensor (1)
    

?6.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P2261 Turbocharger Bypass Control Valve Stuck Closed
    

Is DTC P2261 indicated?

     
YES
     
     
     
The failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at turbocharger bypass control solenoid valve and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?
2.
Turbocharger bypass control solenoid valve operation check:

Turbocharger bypass control solenoid valve operation check
?1.
Select the TC BYPASS CONTROL SOL.V TEST in the INSPECTION MENU with the HDS.

  

Is there a clicking noise from the turbocharger bypass control solenoid valve?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
3.
Determine possible failure area (vacuum hose or turbocharger bypass control solenoid valve, others):

Determine possible failure area (vacuum hose or turbocharger bypass control solenoid valve, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the hose (A) from the turbocharger bypass control valve (B), and connect the vacuum pump/gauge, 0?30 inHg, to the hose.


?3.
Start the engine.

Is there vacuum?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Check the vacuum hose routing, clogging, or restriction between the turbocharger bypass control solenoid valve and the following parts. If they are OK, replace the turbocharger bypass control solenoid valve.?
Turbocharger bypass control valve
Turbocharger
Intake manifold
4.
Turbocharger bypass control valve check:

Turbocharger bypass control valve check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Inspect the turbocharger bypass control valve.

Is the valve OK?

     
YES
     
     
     
Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM, then recheck. If DTC P2261 goes away and the PCM was substituted, replace the original PCM.?
     
NO