CVT Pressure Test: Test

NOTE: 

• Check for DTCs. If any DTCs are stored, troubleshoot and clear them first.
• Do not allow dust or other foreign particles to enter the port while installing the A/T oil pressure gauge.
• Be sure to check the transmission fluid level after each pressure port test. When installing or removing the A/T oil pressure gauge, transmission fluid may run out of the pressure inspection ports.
• Do not test pressure for more than 10 seconds at a time.
• Do not move the shift lever while raising the engine speed.
• Disable the VSA by pressing the VSA OFF button.
• VSA DTC(s) may come on during the test-drive. If the VSA DTC(s) come on, clear the DTC(s) after testing is done with the HDS.
• Test the CVT pressure under the following conditions:
• • Engine warmed up
  • While idling at 600 ± 50 rpm
  • Without load

PRESSURE INSPECTION PORT 

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• 1. Transmission Fluid Level - Check 
• 2. Vehicle - Lift
• 3. Splash Shield- Remove
• 4. HDS DLC - Connect
• 5. A/T Oil Pressure Gauge with Pressure Gauge Adapter - Set

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  When testing the oil pressure at each inspection port, select a suitable adapter from the following table, and connect each adapter to the A/T oil pressure gauge.

  Inspection port	Tool
  Forward clutch pressure	Pressure gauge adapter B

  Inspection port	Tool
  CVT drive pulley pressure	Pressure gauge adapter B
  CVT driven pulley pressure	Pressure gauge adapter A Pressure gauge adapter E
  Reverse brake pressure	Pressure gauge adapter B

• 6. Forward Clutch Pressure - Test

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  1. Remove the sealing bolt (A) with the sealing washer (B).

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  2. Install the A/T oil pressure gauge with pressure gauge adapter B to the forward clutch pressure inspection port 3. Start the engine, and warm up the engine to normal operating temperature (the radiator fan comes on twice) 4. Shift the transmission to D position/mode 5. Measure the forward clutch pressure while firmly pressing the brake pedal, and let the engine idle.

  Pressure	Standard
  Forward clutch	450-730 kPa (4.59-7.44 kgf / cm2, 65.3-105.9 psi)

  6. Turn the engine off

  7. If the forward clutch pressure is out of the standard, refer to the problem and probable cause(s) listed in the table.

  Problem	Probable cause(s)
  No or low forward clutch pressure	Transmission fluid pump defective Linear solenoid valve body defective Manual valve body defective Clutch reducing valve body defective CVT clutch pressure control solenoid valve defective Forward clutch defective

  8. Remove the A/T oil pressure gauge.

  Fig 1: Sealing Bolt & Sealing Washer With Torque Specifications

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  9. Install the sealing bolt (A) using a new sealing washer (B).

  NOTE:  Do not reuse the old sealing washer.

• 7. CVT Drive Pulley Pressure - Test

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  1. Remove the sealing bolt (A) with the sealing washer (B).

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  2. Install the A/T oil pressure gauge with pressure gauge adapter B to the CVT drive pulley pressure inspection port 3. Start the engine, and warm up the engine to normal operating temperature (the radiator fan comes on twice) 4. Shift the transmission to N position/mode 5. Measure the CVT drive pulley pressure while firmly pressing the brake pedal, and let the engine idle.

  Pressure	Standard
  CVT drive Pulley	260-540 kPa (2.65-5.51 kgf/cm2, 37.7-78.3 psi)

  6. Turn the engine off

  7. If the CVT drive pulley pressure is out of the standard, refer to the problem and probable cause(s) listed in the table.

  Problem	Probable cause(s)
  No or low CVT drive pulley pressure	Transmission fluid pump defective Linear solenoid valve body defective Drive pulley control valve defective Clutch reducing valve body defective CVT drive pulley pressure control solenoid valve defective

  Problem	Probable cause(s)
  CVT drive pulley pressure too high	Linear solenoid valve body defective Drive pulley control valve defective Clutch reducing valve body defective CVT drive pulley pressure control solenoid valve defective

  8. Remove the A/T oil pressure gauge.

  Fig 2: Sealing Bolt & Sealing Washer With Torque Specifications

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  9. Install the sealing bolt (A) using a new sealing washer (B).

  NOTE:  Do not reuse the old sealing washer.

• 8. CVT Driven Pulley Pressure - Test

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  NOTE: 

  • CVT Driven pulley pressure may be above 3, 430 kPa (34.98 kgf/cm² , 497.5 psi) when there is a transmission problem that causes the PCM to go into fail-safe operation.
  • When troubleshooting, you must use the 16000 kPa pressure gauges set to measure CVT driven pulley pressure.

  1. Disconnect the connector (A)

  2. Remove the CVT driven pulley pressure sensor (B) with the sealing washer (C).

  NOTE:  Be careful not to damage the plastic part.

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  3. Temporarily install the CVT driven pulley pressure sensor (B) with the sealing washer (C) to pressure gauge adapter A 4. Connect the A/T high pressure gauge (D), the 2, 210 mm A/T pressure hose (F), and the A/T pressure adapter (G).

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  5. Install pressure gauge adapter E (quick connector) to the driven pulley pressure inspection port (B) 6. Connect the pressure gauge adapter A to pressure gauge adapter E (quick connector) 7. Connect the CVT driven pulley pressure sensor connector (C) to the CVT driven pulley pressure sensor (D) 8. Start the engine, and warm up the engine to normal operating temperature (the radiator fan comes on twice) 9. Shift the transmission to N position/mode. 10. Measure the CVT driven pulley pressure while firmly pressing the brake pedal, and let the engine idle. 11. Turn the engine off. 12. If the CVT driven pulley pressure is out of the standard, refer to the problem and probable cause(s) listed in the tables. See Pressure Specifications  and CVT Problem Symptom Table  . 13. Disconnect the CVT driven pulley pressure sensor connector. 14. Remove the 16000 kPa pressure gauges. 15. Remove the CVT driven pulley pressure sensor from pressure gauge adapter A.

  Pressure Specifications
  
  

  Pressure	Standard
  CVT driven Pulley	490 - 900 kPa (5.00 - 9.18 kgf / cm2 , 71.1 - 130.5 psi)

  CVT Problem Symptom Table
  
  

  Problem	Probable cause(s)
  No or low CVT driven pulley pressure	Transmission fluid pump defective Linear solenoid valve body defective Driven pulley control valve defective Clutch reducing valve body defective CVT driven pulley pressure control solenoid valve defective
  CVT driven pulley pressure too high	Linear solenoid valve body defective Driven pulley control valve defective Clutch reducing valve body defective CVT driven pulley pressure control solenoid valve defective

  Fig 3: CVT Driven Pulley Pressure Sensor With Torque Specifications

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  16. Install the CVT driven pulley pressure sensor (A) with a new sealing washer (B).

  NOTE: 

  • Do not reuse the old sealing washer.
  • Tighten the CVT driven pulley pressure sensor by gripping the metal part, not the plastic part.

  17. Connect the connector (C).

  NOTE:  Check the connector for corrosion, dirt, or oil, and clean or repair if necessary.

• 9. Air Cleaner - Remove
• 10. PCM Bracket - Remove

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  1. Remove the PCM cover (A)

  2. Remove the PCM (B) without disconnecting the connectors

  3. Remove the harness clamps (C) and the harness holder (D)

  4. Remove the PCM bracket (E), then swing the PCM out of the way.

• 11. Harness Holder - Remove

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• 12. Reverse Brake Pressure - Test

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  1. Remove the sealing bolt (A) with the sealing washer (B).

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  2. Install the A/T oil pressure gauge with pressure gauge adapter B to the reverse brake pressure inspection port 3. Temporarily install the PCM and the air cleaner 4. Start the engine, and warm up the engine to normal operating temperature (the radiator fan comes on twice) 5. Shift the transmission to R position/mode 6. Measure the reverse brake pressure while firmly pressing the brake pedal, and let the engine idle.

  Pressure	Standard
  Reverse brake	50 - 440 kPa (0.51 - 4.49 kgf / cm2 , 7.3 - 63.8 psi)

  7. Turn the engine off

  8. If the reverse brake pressure is out of the standard, refer to the problem and probable cause(s) listed in the table.

  Problem	Probable cause(s)
  No or low reverse brake pressure	Transmission fluid pump defective Linear solenoid valve body defective Manual valve body defective Clutch reducing valve body defective CVT clutch pressure control solenoid valve defective Reverse brake defective

  9. Remove the A/T oil pressure gauge

  10. Remove the air cleaner, then swing the PCM out of the way.

  Fig 4: Sealing Bolt & Sealing Washer With Torque Specifications

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  11. Install the sealing bolt (A) using a new sealing washer (B).

  NOTE:  Do not reuse the old sealing washer.

• 13. Harness Holder - Install

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• 14. PCM Bracket - Install

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  1. Install the PCM bracket (A)

  2. Install the harness holder (B) and the harness clamps (C)

  3. Install the PCM (D)

  4. Install the PCM cover (E).

• 15.Air Cleaner - Install
• 16.Splash Shield - Install
• 17.Transmission Fluid Level - Check