Initialization [09/2014 - ]
- PERFORM ROAD TEST TO ALLOW TCM TO LEARN WARNING:
- Perform the following procedures while strictly observing all traffic laws and speed limits.
- Do not accelerate or decelerate rapidly.
- The "road test" procedure is as follows:
- Warm up the engine.
- According to the replaced parts, perform the appropriate road test shown below.
Replaced Parts Road Test - Automatic transmission assembly
- TCM
- Valve body assembly
- Shift solenoid valve SL3
- Engine assembly
Perform pattern 1, 2 and 3
Pattern 1:*1- With the shift lever in D, after gradually accelerating to 50 km/h (31 mph) or more, gradually decelerate to approx. 30 km/h (19 mph)
Pattern 2:- When driving at approximately 50 km/h (31 mph) with the D4 range selected, release the accelerator pedal to allow the vehicle to decelerate gradually to approximately 10 km/h (6 mph).
Pattern 3:*2- Accelerate to a speed higher than 50 km/h (31 mph). While gradually decelerating with the shift lever in M and 5th gear selected, downshift to 4th gear at approx. 50 km/h (31 mph), to 3rd gear at approx. 40 km/h (25 mph), and to 2nd gear at approx. 30 km/h (19 mph).
- Shift solenoid valve SL1
- Shift solenoid valve SL2
- Shift solenoid valve SL4
- Shift solenoid valve SL5
Perform pattern 1 and 3
Pattern 1:*1- With the shift lever in D, after gradually accelerating to 50 km/h (31 mph) or more, gradually decelerate to approx. 30 km/h (19 mph)
Pattern 3:*2- Accelerate to a speed higher than 50 km/h (31 mph). While gradually decelerating with the shift lever in M and 5th gear selected, downshift to 4th gear at approx. 50 km/h (31 mph), to 3rd gear at approx. 40 km/h (25 mph), and to 2nd gear at approx. 30 km/h (19 mph).
HINT:
- *1: After gradually accelerating for a distance of approximately 130 m (426.4 ft.) for a period of approximately 15 seconds, gradually decelerate for a distance of approximately 45 m (147.6 ft.) for a period of approximately 5 seconds.
- *2: Accelerate the vehicle to a speed slightly higher than 50 km/h (31 mph).
Move the shift lever to M and select 5th gear.
Release the accelerator pedal and allow the vehicle to decelerate gradually.
When the vehicle decelerates to approximately 50 km/h (31 mph), downshift to 4th gear.
When the vehicle decelerates to approximately 40 km/h (25 mph), downshift to 3rd gear.
When the vehicle decelerates to approximately 30 km/h (19 mph), downshift to 2nd gear.
- When decelerating, apply the brakes as necessary to adjust the vehicle speed.
NOTE:- *1: The speed, time and distance values are approximate values.
- *2: After accelerating, the deceleration does not need to be performed immediately.
- *3: There is no specified time or distance.
- Repeat the road tests until the shift shock and engine speed overrun (engine speed flare when shifting) reach an acceptable level.NOTE:
When repeating the acceleration/deceleration cycle of a road test pattern, bring the vehicle to a complete stop before accelerating again.
- RESET MEMORY NOTE:
- Perform Reset Memory (AT initialization) when replacing the engine assembly or ECM.
- Reset Memory can be performed only with the Techstream.
- Reset Memory cannot be completed by only disconnecting and reconnecting the cable to the negative (-) battery terminal.
HINT:
The TCM (ECT) memorizes the vehicle conditions when controlling the automatic transmission assembly and engine assembly.
- The "Reset Memory" procedure is as follows:
- Turn the engine switch off.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Powertrain / ECT / Utility / Reset Memory.
Powertrain > ECT > Utility
Tester Display Reset Memory NOTE:After performing Reset Memory, be sure to perform "Perform Road Test to Allow TCM to Learn" described earlier.