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DTC P0962: Line Pressure Linear Solenoid Valve System (Short circuit)
DTC P0963: Line Pressure Linear Solenoid Valve System (Open circuit)
 
 
 
 
DESCRIPTIONS OF MONITOR METHODS
  • With the ignition switch ON, an abnormal value equivalent to short circuit is detected in the solenoid control current for 1 second. <P0962>
  • With the ignition switch ON, an abnormal value equivalent to open circuit is detected in the solenoid control current for 5 seconds. <P0963>
 
 
MONITOR EXECUTION
  • Continuous
 
 
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 <P0962>
  • Transmission relay voltage: 2 volts or more.
Judgment Criteria <P0962>
  • Line pressure linear solenoid valve actual current: more than 1.7 A (1 second)
Check Conditions <P0963>
  • Transmission relay voltage: 2 volts or more.
  • Line pressure linear solenoid valve activation command: more than 625 mA
Judgment Criteria <P0963>
  • Line pressure linear solenoid valve actual current: less than 190 mA. (5 seconds)
 
 
OBD-II DRIVE CYCLE PATTERN
Start the engine, and maintain the status for approximately 10 seconds. Then, turn the ignition switch from OFF to ON, restart the engine, and then maintain the status for approximately 10 seconds.
 
 
PROBABLE CAUSES
  • Malfunction of the line pressure linear solenoid valve system circuit
  • Damaged harness or connector
  • Malfunction of the TCM
  • Malfunction of the line pressure linear solenoid valve (valve body assembly)

 
 
DIAGNOSIS
STEP 1. Check the TCM terminal voltage.
[TCM connector (harness side, connected)]
Measure the voltage between the PLLS terminal and body ground.
  • While driving: 300 Hz
  • Other than above: 0 V
Is the check result normal?
Go to Step 5.
Go to Step 2.
 
STEP 2. Check for continuity in PLLS line between the TCM connector and A/T control solenoid valve assembly connector.
When the continuity check result is OK, check that the wiring harness is not shorted to the body and other wiring harness.
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
 
STEP 3. Check the line pressure linear solenoid.
Refer to .
Is the check result normal?
Go to Step 6.
Go to Step 4.
 
STEP 4. Check for continuity in signal line between the A/T control solenoid valve assembly connector and the line pressure linear solenoid valve connector.
Is the check result satisfactory?
Replace the valve body assembly.
Repair the connector(s) or wiring harness.
 
STEP 5. Check the TCMU and A/T control solenoid valve assembly connector pin terminals and the connection status.
Is the check result normal?
Go to Step 7.
Repair or replace the failure section.
 
STEP 6. Check the TCM and A/T control solenoid valve assembly connector pin terminals and the connection status.
Is the check result normal?
Replace the TCM.
Repair or replace the failure section.
 
STEP 7. Erase the DTC, and drive the vehicle for a while.
Check that the normal code is displayed.
Is the check result normal?
The procedure is complete.
Return to Step 1.