Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Automatic Transaxle System: Initialization: Initialization
- RESET TRANSAXLE COMPENSATION CODE NOTE:
- If the following parts have been replaced, initialize the TCM and perform the following "Reset Memory" and "Perform Road Test to Allow TCM to Learn" steps.
- Valve body assembly
- Shift solenoid valve SL3
- Shift solenoid valve SL4
- TCM
- The transaxle compensation code can only be initialized with the Techstream.
HINT:
The TCM memorizes the vehicle conditions when the ECT controls the automatic transaxle assembly. Therefore, when the automatic transaxle assembly or TCM has been replaced, it is necessary to reset the memory so that the TCM can memorize the new information. The reset procedure is as follows:
- Move the shift lever to N or P.
- Turn the ignition switch off.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Powertrain / ECT / Utility / A/T Code Reset.
- Press "Next" to proceed.NOTE:
After the transaxle compensation code is initialized, perform the following "Reset Memory" and "Perform Road Test to Allow TCM to Learn" steps.
- Press "Exit".
- If the following parts have been replaced, initialize the TCM and perform the following "Reset Memory" and "Perform Road Test to Allow TCM to Learn" steps.
- RESET MEMORY NOTE:
Reset Memory can only be performed with the Techstream.
HINT:
The TCM memorizes the vehicle conditions when the ECT controls the automatic transaxle assembly.
Therefore, when the automatic transaxle assembly, valve body assembly, shift solenoid valve SL3, shift solenoid valve SL4, or TCM has been replaced, it is necessary to reset the memory so that the TCM can memorize the new information.
- The reset procedure is as follows.
- Turn the ignition switch off.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: "Powertrain / ECT / Utility / Reset Memory". Then press "Next".NOTE:
After performing Reset Memory, be sure to perform "Perform Road Test to Allow TCM to Learn" described earlier.
- The reset procedure is as follows.
- PERFORM ROAD TEST TO ALLOW TCM TO LEARN NOTE:
Perform the following procedure while strictly observing all traffic laws and speed limits.
- Warm up the engine.
- Turn the ignition switch off.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Powertrain / ECT / Data List / Throttle Position from EFI.
- From a standstill, achieve the highest possible speed with the accelerator pedal depressed 15% or less. Keep the accelerator pedal angle steady while driving the vehicle.
HINT:
"Throttle Position from EFI": 15% or less
- Repeat the previous step until shift shock no longer occurs.
- From a standstill, achieve the highest possible speed with the accelerator pedal depressed 25% to 35%. Keep the accelerator pedal angle steady while driving the vehicle.
HINT:
"Throttle Position from EFI": 25% to 35%
- Repeat the previous step until shift shock no longer occurs.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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