DTC P0973

DTC P0973  : Shift Solenoid Valve A Control Circuit Low (Short)

NOTE:  Before you troubleshoot, review the General Troubleshooting Information .

DTC (Gear)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Raise the vehicle on a lift. Make sure it is securely supported, and allow all four wheels to rotate freely.

   -4. Select the ENERGY FLOW screen on the MID.

   -5. Enter the VSA maintenance mode .

   -6. Run the vehicle in the engine drive mode for at least 10 seconds. Apply the brakes, and slowly bring the wheels to a stop.

   WARNING:

   Do not brake hard when working on a running vehicle on a lift. It may cause some damage to the drive-line.

   -7. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0973 Shift Solenoid Valve A Control Circuit Low (Short)

   Is DTC P0973 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 shift solenoid valve A and the PCM. 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 (shift solenoid valve A, others)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Disconnect the following connector.

   Shift solenoid valve A 2P connector

   -3. Turn the vehicle to the ON mode.

   -4. Clear the DTC with the HDS.

   -5. Enter the VSA maintenance mode .

   -6. Run the vehicle in the engine drive mode for at least 10 seconds. Apply the brakes, and slowly bring the wheels to a stop.

   WARNING:

   Do not brake hard when working on a running vehicle on a lift. It may cause some damage to the drive-line.

   -7. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0973 Shift Solenoid Valve A Control Circuit Low (Short)

   Is DTC P0973 indicated?

   YES 

   Go to step 3.

   NO 

   Replace shift solenoid valve A .

3. Shorted wire check (SHA 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 E (80P)

   -4. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Shift solenoid valve A 2P connector: disconnected
   	PCM connector E (80P): disconnected
   Test point 1	PCM connector E (80P) No. 26

   Test point 2

   Body ground

   Is there 1 MΩ or more?

   YES 

   The SHA wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the original PCM .

   NO 

   Repair a short to ground in the SHA wire between shift solenoid valve A and the PCM.