Road Test

Road Test

DESCRIPTION





^ The purpose of the test is to determine overall performance of A/T and analyze causes of problems.
^ The road test consists of the following three parts:
- Check before engine is started
- Check at idle
- Cruise test





^ Before road test, familiarize yourself with all test procedures and items to check.
^ Conduct tests on all items until specified symptom is found. Troubleshoot items which check out No Good after road test. Refer to "ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION" and "TROUBLE DIAGNOSES FOR SYMPTOMS".
Description of On-Board Diagnostics
Symptom Related Diagnostic Procedures

1. CHECK BEFORE ENGINE IS STARTED
1. CHECK O/D OFF INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to P position.
3. Turn ignition switch to OFF position. Wait at least 5 seconds.





4. Turn ignition switch to ON position. (Do not start engine.)





5. Does O/D OFF indicator lamp come on for about 2 seconds?

Yes or No
Yes >> GO T0 2.
No >> Go to "1. O/D OFF Indicator Lamp Does Not Come On".

2. CHECK O/D OFF INDICATOR LAMP





Does O/D OFF indicator lamp flicker for about 8 seconds?
Yes or No
Yes >> Perform self-diagnosis. Refer to "TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)"
No >> GO TO 3.

3. CHECKING ITEM
1. Turn ignition switch to OFF position.
2. Perform self-diagnosis and note NG items.
Refer to "TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)".

>> Go to "2. Engine Cannot Be Started In P and N Position".

2. CHECK AT IDLE
1. CHECK ENGINE START
1. Park vehicle on flat surface.
2. Turn ignition switch to OFF position.
3. Move selector lever to P or N position.
4. Turn ignition switch to start position.
5. Is engine started?

Yes or No
Yes >> GO T0 2.
No >> Go to "2. Engine Cannot Be Started In P and N Position".

2. CHECK ENGINE START
1. Turn ignition switch to OFF position.
2. Move selector lever to D, 1, 2 or R position.
3. Turn ignition switch to start position.
4. Is engine started?

Yes or No
Yes >> Go to "2. Engine Cannot Be Started In P and N Position".
No >> GO TO 3.

3. CHECK VEHICLE MOVE
1. Turn ignition switch to OFF position.
2. Move selector lever to P position.
3. Release parking brake.
4. Push vehicle forward or backward.





5. Does vehicle move when it is pushed forward or backward?

Yes or No
Yes >> Go to "3. In "P" Position, Vehicle Moves Forward Or Backward When Pushed".
No >> GO T0 4.

4. CHECK VEHICLE MOVE
1. Apply parking brake.
2. Move selector lever to N position.
3. Turn ignition switch to START position and start engine.
4. Release parking brake.
5. Does vehicle move forward or backward?

Yes or No
Yes >> Go to "4. In N Position, Vehicle Moves".
No >> GO TO 5.

5. CHECK SHIFT SHOCK





1. Apply foot brake.
2. Move selector lever to R position.
3. Is there large shock when changing from N to R position?

Yes or No
Yes >> Go to "5. Large Shock. N -> R Position".
No >> GO TO 6.

6. CHECK VEHICLE REVERSE MOVEMENT
1. Release foot brake for several seconds.
2. Does vehicle creep backward when foot brake is released?

Yes or No
Yes >> GO TO 7.
No >> Go to "6. Vehicle Does Not Creep Backward In R Position".

7. CHECK VEHICLE FORWARD MOVEMENT
1. Move selector lever to D, 2 and 1 position and check if vehicle creeps forward.
2. Does vehicle creep forward in all three positions?

Yes or No
Yes >> Go to "3. CRUISE TEST".
No >> Go to "7. Vehicle Does Not Creep Forward In D, 2 Or 1 Position".





3. CRUISE TEST
^ Check all items listed in Parts 1 through 3.

With CONSULT-II
^ Using CONSULT-II, conduct a cruise test and record the result.
^ Print the result and ensure that shifts and lock-ups take place as per "Shift Schedule".

CONSULT-II Setting Procedure
1. Turn ignition switch OFF.





2. Connect "CONSULT-II" to data link connector. The data link connector is located in instrument lower panel on driver side.
3. Turn ignition switch ON.





4. Touch "START".





5. Touch "A/T".





6. Touch "DATA MONITOR".





7. Touch "MAIN SIGNALS" or "TCM INPUT SIGNALS".
8. See "Numerical Display", "Bar Chart Display", or "Line Graph Display".





9. Touch "SETTING" to set recording condition ("AUTO TRIG" or "MANU TRIG") and touch "BACK".
10. Touch "START".





11. When performing cruise test touch "STORE DATA".





12. After finishing cruise test part 1, touch "STOP".








13. Touch "STORE" and touch "BACK".





14. Touch "DISPLAY".
15. Touch "PRINT".
16. Check the monitor data printed out.
17. Continue cruise test part 2 and 3.

Without CONSULT-II





^ Throttle position sensor can be checked by measuring voltage across terminals 41 and 42 of TCM.

Cruise Test-Part 1
1. CHECK STARTING GEAR (D1) POSITION
1. Drive vehicle for approximately 10 minutes to warm engine oil and ATF up to operating temperature.
ATF operating temperature: 50 - 80°C (122 - 176°F)
2. Park vehicle on flat surface.
3. Set overdrive control switch to ON position.





4. Move selector lever to P position.
5. Start engine.





6. Move selector lever to D position.





7. Accelerate vehicle by constantly depressing accelerator pedal halfway.
8. Does vehicle start from Do ?

Read gear position.
Yes or No
Yes >> GO TO 2.
No >> Go to "8. Vehicle Cannot Be Started From D 1".

2. CHECK SHIFT UP (D1 TO D2)





Does A/T shift from Do to Do at the specified speed?
Read gear position, throttle opening and vehicle speed. Specified speed when: Refer to "Shift shifting from D1 to D2 Schedule".

Yes or No
Yes >> GO TO 3.
No >> Go to "9. A/T Does Not Shift: D1 -> D2 Or Does Not Kickdown: D4 -> D2".

3. CHECK SHIFT UP (D2 TO D3)





Does A/T shift from Do to D3 at the specified speed?
Read gear position, throttle opening and vehicle speed. Specified speed when: Refer to "Shift shifting from D2 to D3 Schedule".
Yes or No
Yes >> GO T0 4.
No >> Go to " 10. A/T Does Not Shift: D2 -> D3".

4. CHECK SHIFT UP (D3 TO D4)





^ Does A/T shift from D3 to D1 at the specified speed?
^ Read gear position, throttle opening and vehicle speed.
^ Specified speed when shifting from D3 to D4 : Refer to "Shift Schedule".

Yes or No
Yes >> GO TO 5.
No >> Go to "11. A/T Does Not Shift: D3 -> D4".

5. CHECK LOCK-UP (D4 TO D4 L/U)
Does A/T perform lock-up at the specified speed?





Read vehicle speed, throttle position when lock-up duty becomes 94%.
Specified speed when lock-up occurs: Refer to "Shift Schedule".

Yes or No
Yes >> GO TO 6.
No >> Go to "12. A/T Does Not Perform Lock-up".

6. CHECK HOLD LOCK-UP
Does A/T hold lock-up condition for more than 30 seconds?
Yes or No
Yes >> GO TO 7.
No >> Go to "13. A/T Does Not Hold Lock-up Condition".

7. CHECK LOCK-UP OFF (D4 L/U TO D4)
1. Release accelerator pedal.





2. Is lock-up released when accelerator pedal is released?

Yes or No
Yes >> GO TO 8.
No >> Go to "14. Lock-up Is Not Released".

8. CHECK SHIFT DOWN (D4 TO D3)
1. Decelerate vehicle by applying foot brake lightly.
2. Does engine speed return to idle smoothly when A/T is shifted from D4 to D3?





Read gear position and engine speed.
Yes or No
Yes >>
1. Stop vehicle.
2. Go to "Cruise Test-Part 2".
No >> Go to "15. Engine Speed Does Not Return To Idle (Light Braking D4 -> D3)".

Cruise Test-Part 2
1. CHECK STARTING GEAR (D1) POSITION
1. Confirm overdrive control switch is in ON position.
2. Confirm selector lever is in D position.
3. Accelerate vehicle by half throttle again.
4. Does vehicle start from D1?





Read gear position.
Yes or No
Yes >> GO TO 2.
No >> Go to "16.Vehicle Does Not Start From D1".

2. CHECK SHIFT UP AND SHIFT DOWN (D3 TO D4 TO D2)
1. Accelerate vehicle to 80 km/h (50 MPH) as shown in illustration.
2. Release accelerator pedal and then quickly depress it fully.
3. Does A/T shift from D4 to Do as soon as accelerator pedal is depressed fully?





Read near position and throttle position.
Yes or No
Yes >> GO TO 3.
No >> Go to "9. A/T Does Not Shift: D1 -> D2 Or Does Not Kickdown: D4 -> D2".

3. CHECK SHIFT UP (D2 TO D3)





Does A/T shift from Do to D3 at the specified speed?
Read gear position, throttle position and vehicle speed.
Specified speed when: Refer to "Shift shifting from D2 to D3 Schedule".
Yes or No
Yes >> GO TO 4.
No >> Go to "10. A/T Does Not Shift: D2 -> D3".

4. CHECK SHIFT UP (D3 TO D4) AND ENGINE BRAKE
Release accelerator pedal after shifting from D2 to D3 .





Does A/T shift from D3 to D4 and does vehicle decelerate by engine brake?
Read gear position, throttle position and vehicle speed. Yes or No
Yes >>
1. Stop vehicle.
2. Go to "Cruise Test-Part 3".
No >> Go to "11. A/T Does Not Shift: D3 -> D4".

Cruise Test-Part 3
1. VEHICLE SPEED D4 POSITION
1. Confirm overdrive control switch is in ON position.
2. Confirm selector lever is in D position.





3. Accelerate vehicle using half-throttle to D4.

>> GO T0 2.
2. CHECK SHIFT DOWN (D4 TO D3)
1. Release accelerator pedal.
2. Set overdrive control switch to OFF position while driving in D4 .
3. Does A/T shift from D4 to D3 (O/D OFF)?





Read gear position and vehicle speed.
Yes or No
Yes >> GO TO 3.
No >> Go to "17. A/T Does Not Shift: D4 -> D3 When Overdrive Control Switch ON -> OFF".

3. CHECK ENGINE BRAKE





Does vehicle decelerate by engine brake?
Yes or No
Yes >> GO T0 4.
No >> Go to "15. Engine Speed Does Not Return To Idle (Light Braking D4 -> D3)".

4. CHECK SHIFT DOWN (D3 TO D2)
1. Move selector lever from D to 2 position while driving in D3 (O/D OFF).
2. Does A/T shift from D3 (O/D OFF) to 22?





Read gear position.
Yes or No
Yes >> GO TO 5.
No >> Go to "18. A/T Does Not Shift: D3 -> D2, When Selector Lever D -> 2 Position".

5. CHECK ENGINE BRAKE





Does vehicle decelerate by engine brake?
Yes or No
Yes >> GO TO 6.
No >> Go to "15. Engine Speed Does Not Return To Idle (Light Braking D4 -> D3)".

6. CHECK SHIFT DOWN (22 TO 11)





1. Move selector lever from 2 to 1 position while driving in 22.
2. Does A/T shift from 2 2 to 1 1 position?

Yes or No
Yes >> GO TO 7.
No >> Go to "19. A/T Does Not Shift: 2 2 -> 1 1, When Selector Lever 2 -> 1 Position".

7. CHECK ENGINE BRAKE





Does vehicle decelerate by engine brake?
Yes or No
Yes >>
1. Stop vehicle.
2. Perform self-diagnosis. Refer to "TCM SELF DIAGNOSTIC PROCEDURE (NO TOOLS)".
No >> Go to "20. Vehicle Does Not Decelerate By Engine Brake".