DTC Troubleshooting: P2564
DTC P2564: Turbocharger Wastegate Control Actuator Position Sensor Circuit Low Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P2564 Turbocharger Wastegate Control Actuator Position Sensor Circuit Low Voltage
    

1.
Problem verification:

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

?2.
Clear the DTC with the HDS.


?3.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P2564 Turbocharger Wastegate Control Actuator Position Sensor Circuit Low Voltage
    

Is DTC P2564 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 the turbocharger 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.
Determine possible failure area (WGL line, others):

Determine possible failure area (WGL line, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Turbocharger 5P connector

?3.
Turn the vehicle to the ON mode.

?4.
Clear the DTC with the HDS.


?5.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P2564 Turbocharger Wastegate Control Actuator Position Sensor Circuit Low Voltage
    

Is DTC P2564 indicated?

     
YES
     
     
     
Go to step 5.
     
NO
     
     
     
Go to step 3.
3.
Determine possible failure area (turbocharger wastegate control actuator position sensor, others):

Determine possible failure area (turbocharger wastegate control actuator position sensor, others)
?1.
Measure the voltage between test points 1 and 2.
Test condition
Vehicle ON mode
 
Turbocharger 5P connector: disconnected
Test point 1
Turbocharger 5P connector (female terminals) No. 2:
Test point 2
Turbocharger 5P connector (female terminals) No. 3:


Is there about 5.0 V?

     
YES
     
     
     
     
NO
     
     
     
Go to step 4.
4.
Open wire check (VCC2 4 line):

Open wire check (VCC2 4 line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Jump the SCS line with the HDS, and wait more than 1 minute.


?3.
Disconnect the following connector.
PCM connector No. 1 (96P)

?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Turbocharger 5P connector: disconnected
 
PCM connector No. 1 (96P): disconnected
Test point 1
Turbocharger 5P connector (female terminals) No. 2:
Test point 2
PCM connector No. 1 (96P) No. 65


Is there continuity?

     
YES
     
     
     
The VCC2 4 wire is OK. 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 P2564 goes away and the PCM was substituted, replace the original PCM.?
     
NO
     
     
     
Repair an open in the VCC2 4 wire between PCM connector No. 1 terminal No. 65 and the turbocharger.?
5.
Shorted wire check (WGL line):

Shorted wire check (WGL line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Jump the SCS line with the HDS, and wait more than 1 minute.


?3.
Disconnect the following connector.
PCM connector No. 1 (96P)

?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Turbocharger 5P connector: disconnected
 
PCM connector No. 1 (96P): disconnected
Test point 1
Turbocharger 5P connector (female terminals) No. 4:
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short in the WGL wire between PCM connector No. 1 terminal No. 70 and the turbocharger.?
     
NO
     
     
     
The WGL wire is OK. 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 P2564 goes away and the PCM was substituted, replace the original PCM.?