Automatic Transmission System Road Test

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200
Ae80F Automatic Transmission Transaxle. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. PROBLEM SYMPTOM CONFIRMATION

  1. ROAD TEST

Automatic Transmission System -- Road Test



PROBLEM SYMPTOM CONFIRMATION

  1. Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transmission does not shift up or shift down, or that the shift point is too high or too low, conduct the following road test referring to the automatic shift schedule and attempt to duplicate the problem symptoms.


ROAD TEST

  1. Perform a road test.

    CAUTION:
    Check for safety before performing any tests.
    NOTICE:
    1. Be sure to inspect and adjust the engine before performing these tests.
    2. Perform the road test with the engine coolant temperature is 60°C (140°F) or higher and the ATF temperature between 40 and 110°C (104 and 230°F).
    3. Perform these tests with the air conditioning and cruise control off.

    Inspection
    		Procedure
    Transmission Control Switch Test
    		With the vehicle stationary and the shift lever in D, move the shift lever to S and return it to D. Check that the meter display changes from D to the appropriate S range and then back again.
    S Position Test
    		With the vehicle stationary and the shift lever in S, move the shift lever to "+" and "-". Check that the meter display changes between S ranges properly.
    D Position Shift Test
    		While driving the vehicle normally, check that the transmission shifts up and down through each gear properly.
    Lock-up Function
    		While driving on a level surface at a constant speed in the lock-up range with the shift lever in D, lightly depress the accelerator pedal and check that the engine speed does not change abruptly.
    P Position Test
    		Stop the vehicle on an incline (approximately 5° or more). Then move the shift lever to P and release the parking brake. Check that the parking lock pawl holds the vehicle in place.
    Abnormal Noise and Vibration
    		Check for abnormal noise and vibration while driving the vehicle forward and backward, and during shift operations.
    Fluid Leakage
    		After performing all other road test inspections, check for fluid leakage.
    HINT:
    When checking for DTCs after a repair, drive the vehicle according to the monitor drive pattern (Click here).

  2. Shift schedule confirmation

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / Vehicle Speed, Accelerator Position and Shift Position Sig from ECT.

    5. Check that the "Shift Position Sig from ECT" changes in accordance with the "Vehicle Speed" as shown in the following table.

      Shift Schedule Chart
      Accelerator Position
      		10 +/-1%
      Shift Position Sig from ECT
      (Shift Lever in D)
      		1st to 2nd
      		2nd to 3rd
      		3rd to 4th
      		4th to 5th
      		5th to 6th
      		6th to 7th
      		7th to 8th
      Vehicle Speed
      		5 to 15 km/h
      (3 to 9 mph)
      		10 to 25 km/h
      (6 to 16 mph)
      		15 to 35 km/h
      (9 to 22 mph)
      		25 to 40 km/h
      (16 to 25 mph)
      		35 to 50 km/h
      (22 to 31 mph)
      		45 to 60 km/h
      (28 to 37 mph)
      		65 to 75 km/h
      (40 to 47 mph)

      NOTICE:
      1. All vehicle speeds indicated in the above table are actual values. Therefore, if checking a shift point with a chassis dynamometer, keep in mind that there is a margin of error in the chassis dynamometer indication.
      2. If checking a shift point against the vehicle speed indicated on the speedometer, remember to consider the speedometer correction rate and margin of error in the GTS indication.

  3. Lock-up confirmation

    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / Vehicle Speed, Engine Speed, Accelerator Position, Shift Position Sig from ECT, A/T Oil Temp from ECT, SPD (NT) and ECT Lock Up.

    5. When the following conditions are met, check that the difference between "Engine Speed" and "SPD (NT)" is 50 rpm or less.

      Lock-up Schedule
      Accelerator Position
      		10 +/-1%
      Vehicle Speed
      		80 km/h (50 mph) or more
      Shift Position Sig from ECT
      		8th gear
      ECT Lock Up
      		ON

      HINT:
      Lock-up prohibition conditions:
      1. Shift range between "1" (S1 range) and "4" (S4 range)
      2. Accelerator pedal is fully released
      3. Stop light switch signal is on
      4. Transfer in L4
      5. ATF temperature is below 40°C (104°F)

  4. Manual down-shift permission speed

    1. Manual down-shift is permitted for each shift status when the vehicle speed is below the corresponding range shown in the following table.

      Manual Down-shift Permission Speed Chart
      Shift Status
      (Shift Lever in S)
      		S8 to S7
      		S7 to S6
      		S6 to S5
      		S5 to S4
      		S4 to S3
      		S3 to S2
      		S2 to S1
      Vehicle Speed
      		280 to 305 km/h
      (174 to 190 mph)
      		235 to 260 km/h
      (146 to 162 mph)
      		195 to 215 km/h
      (121 to 134 mph)
      		165 to 185 km/h
      (103 to 115 mph)
      		125 to 145 km/h
      (78 to 90 mph)
      		80 to 90 km/h
      (50 to 56 mph)
      		30 to 40 km/h
      (19 to 25 mph)

  5. Shift schedule when accelerator pedal is fully depressed

    Shift Schedule Chart
    Accelerator Pedal
    		Fully Depressed
    Shift Status
    (Shift Lever in D)
    		1st to 2nd
    		2nd to 3rd
    		3rd to 4th
    		4th to 5th
    		5th to 6th
    		6th to 7th
    		7th to 8th
    Vehicle Speed
    		50 to 65 km/h
    (31 to 40 mph)
    		85 to 100 km/h
    (53 to 62 mph)
    		125 to 150 km/h
    (78 to 93 mph)
    		165 to 185 km/h
    (103 to 115 mph)
    		195 to 215 km/h
    (121 to 134 mph)
    		235 to 260 km/h
    (146 to 162 mph)
    		280 to 305 km/h
    (174 to 190 mph)