Initial Inspection and Diagnostic Overview

ROAD TEST

Description
^ The road test inspects overall performance of the A/T and analyzes possible breakdown causes.
^ The road test is carried out 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. Diagnose NO items when all road tests are complete.

Check Before Engine is Started
1. CHECK A/T CHECK INDICATOR LAMP
1. Park vehicle on level surface.
2. Move selector lever to "P" position.
3. Turn ignition switch to "OFF" position and wait at least 10 seconds.
4. Turn ignition switch to "ON" position. (Do not start engine.)
Does A/T CHECK indicator lamp light up for about 2 seconds?
YES >>GO TO 2.
NO >> Stop the road test and go to "A/T Check Indicator Lamp does not come on".
2. CHECK A/T CHECK INDICATOR LAMP
Does A/T CHECK indicator lamp flash for about 8 seconds?
YES >> Carry out the self-diagnostics and record all NO items on the diagnostics sheet.
NO >>
1. Turn ignition switch to "OFF" position.
2. Go to "Check at Idle".

Check at Idle
1. CHECK STARTING THE ENGINE
1. Park vehicle on level surface.
2. Move selector lever to "P" position.
3. Turn ignition switch to "OFF" position.
4. Switch the ignition switch to "START".
Does the engine start?
YES >>GO TO 2.
NO >> Stop the road test and go to "Engine Cannot Be Started In "P" and "N" Position".

2. CHECK STARTING THE ENGINE
1. Turn ignition switch to "ACC" position.
2. Move selector lever in "D" or "R" position.
3. Turn ignition switch to "START" position.
Does the engine start in either position?
YES >> Stop the road test and go to "Engine Cannot Be Started In "P" and "N" Position".
NO >>GO TO 3.

3. CHECK "P" POSITION FUNCTIONS
1. Move selector lever to "P" position.
2. Turn ignition switch to "OFF" position.
3. Disengage 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 "Vehicle moves when pushed in "P" position" on the diagnostics sheet, then continue the road test.
NO >>GO TO 4.

4. CHECK "N" POSITION FUNCTIONS
1. Start the engine.
2. Move selector lever to "N" position.
3. Disengage the parking brake.
Does the vehicle move?
YES >> Enter a check mark at "Vehicle moves in "N" position" on the diagnostics sheet, then continue the road test.
NO >>GO TO 5.

5. CHECK SHIFT SHOCK
1. Engage the brake.
2. Move selector lever to "D" position.
When the transmission is shifted from "N" to "D", is there an excessive shock?
YES >> Enter a check mark at "Large shock when shifted from N to D" on the diagnostics sheet, then continue the road test.
NO >>GO TO 6.

6. CHECK "R" POSITION FUNCTIONS
Disengage the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES >>GO TO 7.
NO >> Enter a check mark at "Vehicle does not creep backward in R position" on the diagnostics sheet, then continue the road test.

7. CHECK "D", "M" POSITION FUNCTIONS
Inspect whether the vehicle moves forward when the transmission is put into the "D" or "M" position.
Does the vehicle move forward in the "D" and "M" positions?
YES >> Go to "Cruise Test - Part 1", "Cruise Test - Part 2", and "Cruise Test - part 3"
NO >> Enter a check mark at "Vehicle does not move forward in D, M positions" on the diagnostics sheet, then continue the road test.

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 A/T fluid.
Appropriate temperature for the A/T fluid: (50 - 80°F)
2. Park the vehicle on a level surface.
3. Move selector lever to "P" position.
4. Start the engine.
5. Move selector lever to "D" position.
6. Press the accelerator pedal about half way down to accelerate the vehicle.

With CONSULT-II
Read off the gear positions.
Starts from D1 ?
YES >> GO TO 2.
NO >> Enter a check mark at "Vehicle can not be started from D1" on the diagnostics sheet, then continue the road test.

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.

With CONSULT-II
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift up D1 -> D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at "A/T does not shift D1 -> D2 or does not kick down D4 -> D2" on the diagnostics sheet, then continue the road test.

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.

With CONSULT-II
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift up D2 -> D3 at the correct speed?
YES >>GO TO 4.
NO >> Enter a check mark at "A/T does not shift D2 -> D3" on the diagnostics sheet, then continue the road test.

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.

With CONSULT-II
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift up D3 -> D4 at the correct speed?
YES >> GO TO 5.
NO >> Enter a check mark at "A/T does not shift D3 -> D4" on the diagnostics sheet, then continue the road test.

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.

With CONSULT-II
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift up D4 -> D5 at the correct speed?
YES >>GO TO 6.
NO >> Enter a check mark at "A/T does not shift D4 -> D5" on the diagnostics sheet, then continue the road test.

6. CHECK LOCK-UP
Press down the accelerator pedal about half way and inspect if the vehicle lock-up (D5 -> L/U) at the appropriate speed.

With CONSULT-II
Select "TCC SOL 0.00A" with the "MAIN SIGNAL" mode for A/T.
Does the A/T lock-up at the correct speed?
YES >> GO TO 7.
NO >> Enter a check mark at "A/T does not perform lock-up" on the diagnostics sheet, then continue the road test.

7. CHECK LOCK-UP HOLD
Is the lock-up held for at least 30 seconds?
YES >> GO TO 8.
NO >> Enter a check mark at "A/T hold does not lock-up condition" on the diagnostics sheet, then continue the road test.

8. CHECK LOCK-UP RELEASE
Release the accelerator pedal.
When you release the accelerator pedal, is the lock-up released?
YES >> GO TO 9.
NO >> Enter a check mark at "Lock-up is not released" on the diagnostics sheet, then continue the road test.

9. CHECK SHIFT DOWN D5 -> D4
Decelerate by pressing lightly on the brake pedal.
With CONSULT-II
Read the gear position and engine speed.
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 "A/T does not shift down" on the diagnostics sheet, then continue the road test. Go to Cruise test - Part 2.

Cruise Test - Part 2
1. CHECK STARTING FROM D1
1. Move selector lever the "D" position.
2. Accelerate at half throttle.
With CONSULT-II Read the gear position. Does it start from D1 ?
YES >> GO TO 2.
NO >> Enter a check mark at "Vehicle can not be started from D1" on the diagnostics sheet, then continue the road test.

2. CHECK SHIFT UP D3 -> D4 AND SHIFT DOWN D4 -> D3
1. Accelerate to 80 km/h (50 MPH).
2. Release the accelerator pedal once, then quickly press it down again all the way.

With CONSULT-II
Read the gear position and throttle position.
When you press the accelerator pedal, does the transmission immediately shift down D4 -> D2?
YES >> GO TO 3.
NO >> Enter a check mark at "Vehicle does not shift D1 -> D2 or does not kick down D4 -> D2" on the diagnostics sheet, then continue the road test.

3. CHECK SHIFT UP D2 -> D3
Press the accelerator pedal down all the way and inspect whether or not the transmission shifts up (D2 -> D3) at the correct speed.
With CONSULT-II
Read the gear position, throttle position and vehicle speed.
Does the A/T shift up D2 -> D3 at the correct speed?
YES >>GO TO 4.
NO >> Enter a check mark at "Vehicle does not shift D2 -> D3" on the diagnostics sheet, then continue the road test.

4. CHECK SHIFT UP D3 -> D4 AND ENGINE BRAKE
When the transmission changes speed D2 -> D3, return the accelerator pedal.
Does the A/T shift up D3 -> D4 and apply the engine brake?
YES >>
1. Stop the vehicle.
2. See Cruise Test - part 3.
NO >> Enter a check mark at "Vehicle does not shift D3 -> D4" on the diagnostics sheet, then continue the road test.

Cruise Test - part 3
1. CHECK SHIFT DOWN
Shift down one while driving in each position.
With CONSULT-II
Read the gear position.
Does A/T shift down?
YES >> GO TO 2.
NO >> Enter a check mark at "Vehicle does not shift" at the corresponding position (D5 - D4, D4 -> D3, D3 -> D2, D2 -> D1) on the diagnostics sheet, then continue the road test.

2. CHECK ENGINE BRAKE
Does the engine brake work to decelerate the vehicle?
YES >>
1. Stop the vehicle.
2. Carry out the self-diagnostics. Refer to "SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)", "Diagnostic Procedure Without CONSULT-II".
NO >> Enter a check mark at "Vehicle does not decelerate by engine brake" on the diagnostics sheet, then continue trouble diagnosis.

Vehicle Speed When Shifting Gears Throttle Position





^ At half throttle, the accelerator opening is 4/8 of the full opening.

Vehicle Speed When Performing and Releasing Complete Lock-up?





^ At closed throttle, the accelerator opening is less than 1/8, and the closed throttle position signal is turned "OFF" condition.
^ At half throttle, the accelerator opening is 4/8 of the full opening.

Vehicle Speed When Performing and Releasing Slip Lock-up





^ At closed throttle, the accelerator opening is less than 1/8, and the closed throttle position signal is turned "OFF" condition.