DTC Troubleshooting: P0966, P0967
DTC P0966: CVT Driven Pulley Pressure Control Valve Circuit Low
DTC P0967: CVT Driven Pulley Pressure Control Valve Circuit High
NOTE:
Before you troubleshoot, review the General Troubleshooting Information.
This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0966 CVT Driven Pulley Pressure Control Valve Circuit Low
      
P0967 CVT Driven Pulley Pressure Control Valve Circuit High
      

1.
Problem verification:

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

?2.
Clear the DTC with the HDS.


?3.
Start the engine, and wait for at least 1 second.

?4.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0966 CVT Driven Pulley Pressure Control Valve Circuit Low
      
P0967 CVT Driven Pulley Pressure Control Valve Circuit High
      

Is DTC P0966 or P0967 indicated?

     
YES
     
     
     
The failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between the CVT driven pulley pressure control solenoid valve and the TCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
2.
Determine possible failure area (TCM, short in DNLS line, open in DNLS/DNC+ line):

Determine possible failure area (TCM, short in DNLS line, open in DNLS/DNC+ line):
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
TCM 50P connector

?3.
Measure the resistance between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
TCM 50P connector: disconnected
Test point 1
TCM 50P connector No. 14
Test point 2
Body ground

Is there 4.6?6.3 ??

     
4.6?6.3 ?
     
     
     
Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good TCM, then recheck. If this DTC goes away and the TCM was substituted, replace the original TCM.?
     
Less than 4.6 ?
     
     
     
Go to step 3.
     
More than 6.3 ?
     
     
     
Go to step 4.
3.
Shorted wire check (DNLS line):

Shorted wire check (DNLS line)
?1.
Disconnect the following connector.
CVT driven pulley pressure control solenoid valve 2P connector

?2.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
CVT driven pulley pressure control solenoid valve 2P connector: disconnected
 
TCM 50P connector: disconnected
Test point 1
TCM 50P connector No. 14
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Repair a short to ground in the DNLS wire between the CVT driven pulley pressure control solenoid valve and the TCM.?
     
NO
     
     
     
The DNLS wire is OK. Faulty CVT driven pulley pressure control solenoid valve. Replace the valve body assembly.?
4.
Open wire check (DNLS/DNC+ line):

Open wire check (DNLS/DNC+ line)
?1.
Disconnect the following connector.
CVT driven pulley pressure control solenoid valve 2P connector

?2.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
CVT driven pulley pressure control solenoid valve 2P connector: disconnected
 
TCM 50P connector: disconnected
Test point 1
CVT driven pulley pressure control solenoid valve 2P connector No. 2
Test point 2
TCM 50P connector No. 14


Is there continuity?

     
YES
     
     
     
The DNLS/DNC+ wire is OK. Go to step 5.
     
NO
     
     
     
Repair an open in the DNLS/DNC+ wire between the CVT driven pulley pressure control solenoid valve and the TCM.?
5.
Open wire check (DNC- line):

Open wire check (DNC- line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
CVT driven pulley pressure control solenoid valve 2P connector: disconnected
 
TCM 50P connector: disconnected
Test point 1
CVT driven pulley pressure control solenoid valve 2P connector No. 1
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The DNC- wire is OK. Faulty CVT driven pulley pressure control solenoid valve. Replace the valve body assembly.?
     
NO
     
     
     
Repair an open in the DNC- wire between the CVT driven pulley pressure control solenoid valve and ground (G251), or repair poor ground (G251).?