Line Pressure Test: Notes

This test is performed to check operating conditions of each part by measuring fluid pressure in fluid pressure line.

1. Connect scan tool to DLC.
2. Select "Data list" mode on scan tool.
3. Drive vehicle so that CVT fluid temperature reaches normal operating temperature (50 - 80 °C (122 - 176 °F)), see SCAN TOOL DATA .
   NOTE: Engine coolant temperature rises when revving engine in "P" or "N" position, but CVT fluid temperature does not rise in "P" or "N" position. Be sure to drive vehicle in order to raise CVT fluid temperature.
4. Apply parking brake and block wheels.
5. Remove fluid pressure check hole bolt (1).
6. Attach oil pressure gauge to fluid pressure check hole (2) in transaxle case.
   NOTE: After attaching oil pressure gauge, check that no fluid leakage exists.

   Special Tool 

   1. 09925-37910 
   Fig 1: Identifying Fluid Pressure Check Hole Bolt And Fluid Pressure Check Hole

   Courtesy of SUZUKI OF AMERICA CORP.
7. Depress brake pedal fully, run engine at idle and stall then check fluid pressure in "D" or "R" range.
   CAUTION: If you do not take proper precautions during line pressure tests, a CVT failure may result due to an excessive rise in CVT fluid temperature.

   • Do not continue running engine at stall speed longer than 5 seconds.
   • After performing line pressure test, be sure to leave engine running at idle for longer than 1 minute before performing another line pressure test.

   CVT line pressure 

   CVT LINE PRESSURE RANGE REFERENCE
   
   

   	"D" range	"R" range
   At idle speed	0.5 - 1.0 MPa (5.1 - 10.2 kgf/cm2 , 72.5 - 145 psi, 5 - 10 bar)
   At stall speed (Reference)	4.9 - 6.1 MPa (50.0 - 62.2 kgf/cm2 , 710 - 884 psi, 49 - 61 bar)

8. If check result is OK, disconnect special tool and then tighten fluid pressure check hole bolt (1) to specified torque.

   Tightening torque 

   Fluid pressure check hole bolt (a): 7.5 N.m (0.76 kg-m, 5.5 lbf-ft) 

   Fig 2: Identifying Fluid Pressure Check Hole Bolt

   Courtesy of SUZUKI OF AMERICA CORP.