Road Test
ROAD TESTDESCRIPTION
^ The road test inspects overall performance of A/T and analyzes possible malfunction causes.
^ The road test is performed in the following three stages.
1. Check before engine is started.
2. Check at idle.
3. Cruise test
- Inspect all the items from Part 1 to Part 3.
^ Before beginning the road test, check the test procedure and inspection items.
^ Test all inspection items until the symptom is uncovered. Include NG items in "Diagnostic Worksheet Chart" (Refer to AT-40). How to Perform Trouble Diagnosis For Quick and Accurate Repair
Perform a diagnosis of the NG items after the completion of all the road tests.
CHECK BEFORE ENGINE IS STARTED
1.CHECK A/T CHECK INDICATOR LAMP
1. Park vehicle on level surface.
2. Shift selector lever to "P" position.
3. Turn ignition switch OFF and wait for at least 10 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does A/T CHECK indicator lamp light UP for about 2 seconds?
YES-1 >> With CONSULT-III
1. Turn ignition switch OFF.
2. Select "SELF-DIAG RESULTS" mode for "TRANSMISSION" with CONSULT-III and record all NG items on "Diagnostic Worksheet Chart".
3. Go to "CHECK AT IDLE".
YES-2 >> Without CONSULT-III
1. Turn ignition switch OFF.
2. Perform the self-diagnosis and record all NG items on the "Diagnostic Worksheet Chart". Refer to AT-86, "Diagnosis Procedure without CONSULT-III". Diagnosis Procedure Without Consult-III
3. Go to "CHECK AT IDLE".
NO >> Stop the road test and go to AT-165, "A/T Check Indicator Lamp Does Not Come On". A/T Check Indicator Lamp Does Not Come On
CHECK AT IDLE
1.CHECK STARTING THE ENGINE
1. Park vehicle on level surface.
2. Shift selector lever to "P" or "N" position.
3. Turn ignition switch OFF.
4. Start the engine.
Does the engine start?
YES >> GO TO 2.
NO >> Stop the road test and go to AT-165, "Engine Cannot Be Started in "P" or "N" Position". Engine Cannot Be Started In "P" or "N" Position
2.CHECK STARTING THE ENGINE
1. Turn ignition switch ON. (Do not start engine.)
2. Shift selector lever in "D", "M" or "R" position.
3. Start the engine.
Does the engine start in each position?
YES >> Stop the road test and go to AT-165, "Engine Cannot Be Started in "P" or "N" Position". Engine Cannot Be Started In "P" or "N" Position
NO >> GO TO 3.
3.CHECK "P" POSITION FUNCTIONS
1. Shift selector lever to "P" position.
2. Turn ignition switch OFF.
3. Release the parking brake.
4. Push the vehicle forward or backward.
5. Engage the parking brake.
When you push the vehicle with disengaging the parking brake, does it move?
YES >> Enter a check mark at AT-166, "In "P" Position, Vehicle Moves When Pushed" on the "Diagnostic Worksheet Chart", GO TO 4.
NO >> GO TO 4.
4.CHECK "N" POSITION FUNCTIONS
1. Start the engine.
2. Shift selector lever to "N" position.
3. Release the parking brake.
Does vehicle move forward or backward?
YES >> Enter a check mark at AT-166, "In "N" Position, Vehicle Moves" on the "Diagnostic Worksheet Chart", GO TO 5.
NO >> GO TO 5.
5.CHECK SHIFT SHOCK
1. Engage the brake.
2. Move selector lever to "D" position.
When the A/T is shifted from "N" to "D". is there an excessive shock?
YES >> Enter a check mark at AT-167, "Large Shock ("N" to "D" Position)" on the "Diagnostic Worksheet Chart", GO TO 6.
NO >> GO TO 6.
6.CHECK "R" POSITION FUNCTIONS
1. Engage the brake.
2. Move selector lever to "R" position.
3. Release the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES >> GO TO 7.
NO >> Enter a check mark at AT-168, "Vehicle Does Not Creep Backward in "R" Position" on the "Diagnostic Worksheet Chart", GO TO 7.
7.CHECK "D" POSITION FUNCTIONS
Inspect whether the vehicle creep forward when the A/T is put into the "D" position.
Does the vehicle creep forward in the "D" position?
YES >> Go to "CRUISE TEST-PART 1".
NO >> Enter a check mark at AT-170, "Vehicle Does Not Creep Forward in "D" Position" on the "Diagnostic Worksheet Chart", then continue the road test. Vehicle Does Not Creep Forward In "D" Position
Go to "CRUISE TEST-PART 1".
CRUISE TEST-PART 1
1.CHECK STARTING OUT FROM D1
1. Drive the vehicle for about 10 minutes to warm up the engine oil and ATF. Appropriate temperature for the ATF: 50 to 80°C (122 to 176°F)
2. Park the vehicle on a level surface.
3. Shift selector lever to "P" position.
4. Start the engine.
5. Shift selector lever to "D" position.
6. Press the accelerator pedal about half-way down to accelerate the vehicle.
With CONSULT-III
Read the value of "GEAR" with "DATA MONITOR" mode.
Starts from D1?
YES >> GO TO 2.
NO >> Enter a check mark at AT-172, "Vehicle Cannot Be Started from D1" on the "Diagnostic Worksheet Chart", GO TO 2.
2.CHECK SHIFT-UP D1 ---> D2
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D1 ---> D2) at the appropriate speed. Refer to AT-55, "Vehicle Speed at When Gears Shifting Occurs". Vehicle Speed at When Gears Shifting Occurs
With CONSULT-III
Read the value of "GEAR", "ACCELE POSI" and "VEHICLE SPEED" with "DATA MONITOR" mode.
Does the A/T shift-up D1 ---> D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at AT-174, "A/T Does Not Shift: D1 ---> D2" on the "Diagnostic Worksheet Chart", GO TO 3.
3.CHECK SHIFT-UP D2 ---> D3
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D2 ---> D3) at the appropriate speed. Refer to AT-55, "Vehicle Speed at When Gears Shifting Occurs". Vehicle Speed at When Gears Shifting Occurs
With CONSULT-III
Read the value of "GEAR", "ACCELE POSI" and "VEHICLE SPEED" with "DATA MONITOR" mode.
Does the A/T shift-up D2 ---> D3 at the correct weed?
YES >> GO TO 4.
NO >> Enter a check mark at AT-175, "A/T Does Not Shift: D2 ---> D3" on the "Diagnostic Worksheet Chart", GO TO 4.
4.CHECK SHIFT-UP D3 ---> D4
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D3 ---> D4) at the appropriate speed. Refer to AT-55, "Vehicle Speed at When Gears Shifting Occurs". Vehicle Speed at When Gears Shifting Occurs
With CONSULT-III
Read the value of "GEAR", "ACCELE POSI" and "VEHICLE SPEED" with "DATA MONITOR" mode.
Does the A/T shift-up D3 ---> D4 at the correct speed?
YES >> GO TO 5.
NO >> Enter a check mark at AT-177, "A/T Does Not Shift: D3 ---> D4" on the "Diagnostic Worksheet Chart", GO TO 5.
5.CHECK SHIFT-UP D4 ---> D5
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D4 ---> D5) at the appropriate speed. Refer to AT-55, "Vehicle Speed at When Gears Shifting Occurs". Vehicle Speed at When Gears Shifting Occurs
With CONSULT-III
Read the value of "GEAR", "ACCELE POSI" and "VEHICLE SPEED" with "DATA MONITOR" mode.
Does the A/T shift-up D4 ---> D5 at the correct speed?
YES >> GO TO 6.
NO >> Enter a check mark at AT-179, "A/T Does Not Shift: D4 ---> D5" on the "Diagnostic Worksheet Chart", GO TO 6.
6.CHECK LOCK-UP
When releasing accelerator pedal (closed throttle position signal: OFF) from D5, check lock-up from D5 to L/U. Refer to AT-55, "Vehicle Speed at When Gears Shifting Occurs". Vehicle Speed at When Gears Shifting Occurs
With CONSULT-III
Read the value of "TCC SOLENOID" with "DATA MONITOR" mode. Refer to AT-80, "CONSULT-III Function (TRANSMISSION)". Consult-III Function (Transmission)
Does it lock-up?
YES >> GO TO 7.
NO >> Enter a check mark at AT-180, "A/T Does Not Lock-up" on the "Diagnostic Worksheet Chart", GO TO 7.
7.CHECK LOCK-UP HOLD
Check hold lock-up.
With CONSULT-III
Read the value of "TCC SOLENOID" with "DATA MONITOR" mode. Refer to AT-80, "CONSULT-III Function (TRANSMISSION)". Consult-III Function (Transmission)
Does it maintain lock-up status?
YES >> GO TO 8.
NO >> Enter a check mark at AT-182, "A/T Does Not Hold Lock-up Condition" on the "Diagnostic Work-sheet Chart", GO TO 8.
8.CHECK LOCK-UP RELEASE
Check lock-up cancellation by depressing brake pedal lightly to decelerate.
With CONSULT-III
Read the value of "TCC SOLENOID" with "DATA MONITOR" mode. Refer to AT-80, "CONSULT-III Function (TRANSMISSION)". Consult-III Function (Transmission)
Does lock-up cancel?
YES >> GO TO 9.
NO >> Enter a check mark at AT-183, "Lock-up Is Not Released" on the "Diagnostic Worksheet Chart", GO TO 9.
9.CHECK SHIFT-DOWN D5 ---> D4
Decelerate by pressing lightly on the brake pedal.
With CONSULT-III
Read the value of "GEAR" and "ENGINE SPEED" with "DATA MONITOR" mode.
When the A/T shift-down D5 ---> D4, does the engine speed drop smoothly back to idle?
YES >> 1. Stop the vehicle.
2. Go to CRUISE TEST-PART 2.
NO >> Enter a check mark at AT-183, "Engine Speed Does Not Return to Idle" on the "Diagnostic Worksheet Chart", then continue the road test. Go to CRUISE TEST-PART 2.
CRUISE TEST-PART 2
1.CHECK STARTING FROM D1
1. Shift selector lever into "D" position.
2. Accelerate at half throttle.
With CONSULT-III
Read the value of "GEAR" with "DATA MONITOR" mode.
Does it start from D1?
YES >> GO TO 2.
NO >> Enter a check mark at AT-172, "Vehicle Cannot Be Started from D1" on the "Diagnostic Worksheet Chart", GO TO 2.
2.CHECK SHIFT-UP D1 ---> D2
Press the accelerator pedal down all the way and inspect whether or not the A/T shifts up (D1 ---> D2) at the correct speed. Refer to AT-155, "Vehicle Speed at When Gears Shifting Occurs". Vehicle Speed at When Gears Shifting Occurs
With CONSULT-III
Read the value of "GEAR", "ACCELE POSI" and "VEHICLE SPEED" with "DATA MONITOR" mode.
Does the A/T shift-up D1 ---> D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at AT-174, "A/T Does Not Shift: D1 ---> D2" on the "Diagnostic Worksheet Chart", GO TO 3.
3.CHECK SHIFT UP D2 ---> D3
Press the accelerator pedal down all the way and inspect whether or not the A/T shifts up (D2 ---> D3) at the correct speed. Refer to AT-55, "Vehicle Speed at When Gears Shifting Occurs". Vehicle Speed at When Gears Shifting Occurs
With CONSULT-III
Read the value of "GEAR", "ACCELE POSI" and "VEHICLE SPEED" with "DATA MONITOR" mode.
Does the A/T shift-up D2 ---> D3 at the correct speed?
YES >> GO TO 4.
NO >> Enter a check mark at AT-175, "A/T Does Not Shift: D2 ---> D3" on the "Diagnostic Worksheet Chart", GO TO 4.
4.CHECK SHIFT-UP D3 ---> D4 AND ENGINE BRAKE
When the A/T changes speed D3 ---> D4, return the accelerator pedal.
With CONSULT-III
Read the value of "GEAR" with "DATA MONITOR" mode.
Does the A/T shift-up D3 ---> D4 and apply the engine brake?
YES >> 1. Stop the vehicle.
2. Go to "CRUISE TEST-PART 3".
NO >> Enter a check mark at AT-177, "A/T Does Not Shift: D3 ---> D4" on the "Diagnostic Worksheet Chart", then continue the road test. Go to "CRUISE TEST-PART 3".
CRUISE TEST-PART 3
1.MANUAL MODE FUNCTION
Move to manual mode from "D" position.
Does it switch to manual mode?
YES >> GO TO 2.
NO >> Enter a check mark at AT-184, "Cannot Be Changed to Manual Mode" on the "Diagnostic Work-sheet Chart", GO TO 2.
2.CHECK SHIFT-DOWN
During manual mode driving, is downshift from M5 ---> M4 ---> M3 ---> M2 ---> M1 performed?
With CONSULT-III
Read the value of "GEAR" with "DATA MONITOR" mode.
Is downshifting correctly performed?
YES >> GO TO 3.
NO >> Enter a check mark at "A/T Does Not Shift" at the corresponding position (5th ---> 4th, 4th ---> 3rd, 3rd ---> 2nd, 2nd ---> 1st) on the "Diagnostic Worksheet Chart", GO TO 3.
3.CHECK ENGINE BRAKE
Check engine brake.
Does engine braking effectively reduce speed in M1 position?
YES-1 >> With CONSULT-III
1. Turn ignition switch OFF.
2. Select "SELF-DIAG RESULTS" mode for "TRANSMISSION" with CONSULT-III and record all NG items on "Diagnostic Worksheet Chart".
YES-2 >> Without CONSULT-III
1. Turn ignition switch OFF.
2. Perform the self-diagnosis and record all NG items on the "Diagnostic Worksheet Chart". Refer to AT-86, "Diagnosis Procedure without CONSULT-III". Diagnosis Procedure Without Consult-III
NO >> Enter a check mark at AT-190, "Vehicle Does Not Decelerate by Engine Brake" on the "Diagnostic Worksheet Chart", then continue trouble diagnosis.