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DTC P0966: Malfunction of the Secondary Pressure Solenoid Valve (low input)
 
 
 
 
DIAGNOSTIC FUNCTION
If a predetermined current does not flow into the secondary pressure solenoid valve (short to ground), the TCM will determine the system is defective.
 
 
DESCRIPTIONS OF MONITOR METHODS
The solenoid valve drive circuit remains short to ground for 0.48 seconds.
 
 
MONITOR EXECUTION
  • Voltage of battery: 10 volts or more.
 
 
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
  • Not applicable
Sensor (The sensor below is determined to be normal)
  • Not applicable
 
 
LOGIC FLOW CHARTS (Monitor Sequence)
 
 
DTC SET CONDITIONS
Check Conditions
  • Voltage of battery: 10 volts or more.
Judgment Criteria
  • Secondary pressure solenoid valve actual current: 1.78 A or more (0.5 seconds).
 
 
OBD-II DRIVE CYCLE PATTERN
Ignition switch: ON (start the engine and keep it for 5 seconds or more)
 
 
PROBABLE CAUSES
  • Malfunction of the valve body assembly (Faulty secondary pressure solenoid valve)
  • Damaged wiring harness and connectors
  • Malfunction of TCM
 
 
DIAGNOSIS
STEP 1. Check for short to ground in SCLS line between the CVT assembly connector and the TCM connector
Is the check result normal?
Go to Step 2.
Repair the connector(s) or the wiring harness.
 
STEP 2. Secondary pressure solenoid valve check
Refer to .
Is the check result normal?
Go to Step 4.
Go to Step 3.
 
STEP 3. Check for short to ground in power supply line between the CVT assembly connector and the valve body harness connector (secondary pressure solenoid valve line)
Refer to .
Is the check result normal?
Replace the valve body assembly. (Refer to )
Replace the valve body harness. (Refer to )
 
STEP 4. Symptom recheck after erasing diagnostic trouble code
Is the diagnostic trouble code set?
Replace the TCM.
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunctions ).