HYBRID TRANSMISSION SYSTEM ON-VEHICLE INSPECTION

PROCEDURE


  1. CHECK SHIFT CHANGE POINT

    CAUTION:

    Check for safety before performing any tests.

    Note


    • This test must be performed after checking and adjusting the engine.

    • Perform the test at the normal operating transmission fluid temperature 50 to 80°C (122 to 176°F).

    • Perform the test with the air conditioning and cruise control turned off.

    • Do not perform the test with the shift lever in M.

    • Perform the test with the WOUT Control Limit Power at 17 kW or higher.

    • Perform the test with the WIN Control Limit Power at -10 kW or higher.

    • Do not operate the paddle shift during the test.

    • Perform the test with the mode switch in ECO.

    • Perform the test on a road with a gradient of 3%.

    Tech Tips

    Reference values taken with the engine coolant temperature at 70 °C (158 °F).

    Speed Variation Point (D position)
    Throttle Sensor Position Speed Variation Point Vehicle Speed
    100% 1st to 2nd 54 to 63 km/h (34 to 39 mph)
    2nd to 3rd 74 to 85 km/h (47 to 52 mph)
    3rd to 4th 89 to 102 km/h (56 to 63 mph)
    4th to 5th 117 to 133 km/h (73 to 82 mph)
    5th to 6th 147 to 166 km/h (92 to 103 mph)
    6th to 7th 179 to 201 km/h (112 to 124 mph)
    7th to 8th 219 to 245 km/h (137 to 152 mph)
    8th to 9th 298 to 332 km/h (186 to 206 mph)
    9th to 10th 318 to 354 km/h (198 to 220 mph)
    100% 10th to 9th 269 to 300 km/h (168 to 186 mph)
    9th to 8th 230 to 257 km/h (143 to 159 mph)
    8th to 7th 172 to 193 km/h (107 to 119 mph)
    7th to 6th 138 to 156 km/h (86 to 96 mph)
    6th to 5th 113 to 128 km/h (71 to 79 mph)
    5th to 4th 85 to 97 km/h (53 to 60 mph)
    4th to 3rd 64 to 74 km/h (40 to 46 mph)
    3rd to 2nd 49 to 58 km/h (31 to 36 mph)
    2nd to 1st 32 to 39 km/h (20 to 24 mph)

  2. ROAD TEST

    CAUTION:

    Check for safety before performing any tests.

    Note


    • This test must be performed after checking and adjusting the engine.

    • Perform the test at the normal operating transmission fluid temperature 50 to 80°C (122 to 176°F).

    • Perform the test with the air conditioning and cruise control turned off.

    • Shifting between gears in M can only be checked while the vehicle is being driven.*1

    Drive Test Chart
    Check Item Check Procedure
    Shift shock level while driving with shift lever in D

    While driving the vehicle normally, check the shifting up and down through each gear.

    Check the shock level during shift operations.
    Paddle shift function While the vehicle is stopped, shift to the "+" and "-" side with the shift paddle to check that the shift position on the meter display changes as follows: 1 → 2, 2 → 3, 3 → 4, 4 → 5, 5 → 6, 6 → 7, 7 → 8, 8 → 9 and 9 → 10.
    Transmission control switch operation With the vehicle stopped and the shift lever in D, move the shift lever to M and return it to D. Check that the meter display changes from D to M1 and then back again.
    M position function*1 With the shift lever in M, move between "+" and "-" and check that the meter display changes.
    Downshifting

    While driving at a vehicle speed of approximately 100 km/h (62 mph) with the shift lever in M10 (10th gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 9th gear.

    Tech Tips

    If the vehicle speed exceeds 315 km/h (196 mph), downshifting cannot be performed.

    While driving at a vehicle speed of approximately 100 km/h (62 mph) with the shift lever in M9 (9th gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 8th gear.

    Tech Tips

    If the vehicle speed exceeds 259 km/h (161 mph), downshifting cannot be performed.

    While driving at a vehicle speed of approximately 90 km/h (56 mph) with the shift lever in M8 (8th gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 7th gear.

    Tech Tips

    If the vehicle speed exceeds 216 km/h (134 mph), downshifting cannot be performed.

    While driving at a vehicle speed of approximately 80 km/h (50 mph) with the shift lever in M7 (7th gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 6th gear.

    Tech Tips

    If the vehicle speed exceeds 176 km/h (109 mph), downshifting cannot be performed.

    While driving at a vehicle speed of approximately 70 km/h (43 mph) with the shift lever in M6 (6th gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 5th gear.

    Tech Tips

    If the vehicle speed exceeds 144 km/h (89 mph), downshifting cannot be performed.

    While driving at a vehicle speed of approximately 60 km/h (37 mph) with the shift lever in M5 (5th gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 4th gear.

    Tech Tips

    If the vehicle speed exceeds 114 km/h (71 mph), downshifting cannot be performed.

    While driving at a vehicle speed of approximately 50 km/h (31 mph) with the shift lever in M4 (4th gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 3rd gear.

    Tech Tips

    If the vehicle speed exceeds 87 km/h (54 mph), downshifting cannot be performed.

    While driving at a vehicle speed of approximately 40 km/h (25 mph) with the shift lever in M3 (3rd gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 2nd gear.

    Tech Tips

    If the vehicle speed exceeds 73 km/h (45 mph), downshifting cannot be performed.

    While driving at a vehicle speed of approximately 30 km/h (19 mph) with the shift lever in M2 (2nd gear), shift to the "-" side of the shift paddle and check that the transmission shifts down to 1st gear.

    Tech Tips

    If the vehicle speed exceeds 54 km/h (34 mph), downshifting cannot be performed.
    Speed variation point with accelerator pedal fully depressed With the shift lever in D, start off with the accelerator pedal fully depressed and check that the upshift rate conforms to the speed variation point.
    P position test Stop the vehicle on a gradient (more than 5°) and after push the P position switch, release the parking brake and check that the parking lock pawl holds the vehicle in place.
    Noise and vibration Check for noise and vibration when driving the vehicle and during gear changes.
    Fluid leaks After performing a road test, check for fluid leaks.

  3. CHECK SHIFT CHANGE OPERATION


    1. Connect the GTS to the DLC3 with the power switch off.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Hybrid Control / Active Test.

      Powertrain > Hybrid Control > Active Test
      Tester Display Measurement Item Control Range Restrict Condition
      Activate the Solenoid (SL1) Operate the shift solenoid valve SL1 ON/OFF

      • Power switch on (IG)

      • READY off

      • Shift position in P or N
      Activate the Solenoid (SL2) Operate the shift solenoid valve SL2 ON/OFF

      • Power switch on (IG)

      • READY off

      • Shift position in P or N
      Activate the Solenoid (SL3) Operate the shift solenoid valve SL3 ON/OFF

      • Power switch on (IG)

      • READY off

      • Shift position in P or N
      Activate the Solenoid (SL4) Operate the shift solenoid valve SL4 ON/OFF

      • Power switch on (IG)

      • READY off

      • Shift position in P or N
      Activate the Solenoid (SC1) Operate the shift solenoid valve SC1 ON/OFF

      • Power switch on (IG)

      • READY off

      • Shift position in P or N
      Activate the Solenoid (SC2) Operate the shift solenoid valve SC2 ON/OFF

      • Power switch on (IG)

      • READY off

      • Shift position in P or N
      Activate the Solenoid (SLT) Operate the shift solenoid valve SLT ON/OFF

      • Power switch on (IG)

      • READY off

      • Shift position in P or N

      Tech Tips

      Solenoid Condition During Gear Change
      Symbol Operation Condition
      ○ Power supplied (ON)
      X Power not supplied (OFF)
      Normal
      Shift Position Gear Position SL1 SL2 SL3 SL4 SC1 SC2
      D 1st ○ X X ○ ○ X
      ↑ 2nd ○ X X ○ ○ X
      ↑ 3rd*1 ○ X X ○ ○ X
      ○ X ○ X
      ↑ 4th ○ X ○ X ○ X
      ↑ 5th ○ X ○ X ○ X
      ↑ 6th*1 ○ X ○ X ○ X
      ○ ○ X X
      ↑ 7th ○ ○ X X ○ X
      ↑ 8th ○ ○ X X ○ X
      ↑ 9th*1 ○ ○ X X ○ X
      X ○ ○ X
      ↑ 10th X ○ ○ X ○ X

      *1: The solenoids operate in 2 different combinations in 3rd, 6th and 9th gear depending on the driving conditions.

  4. CHECK OIL PUMP MOTOR


    1. Connect the GTS to the DLC3 with the power switch off.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Hybrid Control / Active Test / Control the Transmission Oil Pump.

      Note

      Make sure that the auxiliary battery is not discharged.

    5. While performing the "Control the Transmission Oil Pump" Active Test, check the "Request Transmission Fluid Pump Motor Revolution" and "Transmission Fluid Pump Motor Revolution" Data List items.


      Powertrain > Hybrid Control > Active Test
      Active Test Display
      Control the Transmission Oil Pump
      Data List Display
      Transmission Fluid Pump Motor Revolution
      Request Transmission Fluid Pump Motor Revolution
      Result
      The values for "Request Transmission Fluid Pump Motor Revolution" and "Transmission Fluid Pump Motor Revolution" are almost the same.*
      *: The transmission oil pump motor engine speed is 300 to 600 rpm when the required transmission oil pump engine speed is 400 rpm.

      Note


      • Complete the Transmission Oil Pump Motor Active Test within 30 seconds.

      • If the Transmission Oil Pump Motor Active Test is performed once, further Active Tests cannot be performed for 1 minute as the motor needs to cool down.

      • Make sure that the auxiliary battery is not discharged.

      • Use an external power source if the voltage of the auxiliary battery is below 12 V. If the voltage of the auxiliary battery is low, the transmission oil pump motor, fuse and wire harness could deteriorate or could be damaged.

    6. While performing EV driving (engine stopped) and check the "Request Transmission Fluid Pump Motor Revolution" and "Transmission Fluid Pump Motor Revolution" Data List items.

      Result
      The values for "Request Transmission Fluid Pump Motor Revolution" and "Transmission Fluid Pump Motor Revolution" are almost the same.