Toyota 00544-24FT2-530
Battery

Engine startup and steering lock release will be prevented after battery terminal changes unless the steering lock system runs its initialization sequence because of low battery voltage. To replace the ECU or other components dealers should use Techstream through which they must operate two functions: first they should read the VIN from the old ECU then they should apply the new VIN to the replacement ECM only when the stored VIN does not match the actual VIN of the vehicle. The Techstream requires resetting of the transaxle compensation code after replacing either the valve body assembly or shift solenoid valves SL3 and SL4 or TCM through a step-by-step procedure that starts with putting the shift lever to N or P then opening the ignition before proceeding to the Techstream menus. The TCM needs a road test to learn after memory reset since this procedure requires the Techstream for execution. The transaxle compensation code from the QR label must be recorded before reinstallation into the TCM since the correct 60-digit alphanumeric value is needed to prevent shift shock. The procedure for tire pressure warning systems entails using the Techstream to register transmitter IDs that become necessary during component replacement. Beforehand technicians should collect ID data using the Techstream as the tool for registration. The vehicle stability control system calibration needs an engine variant learning procedure through Techstream that follows specific steps to guarantee system functionality. When changing the power steering ECU or steering column assembly the system demands an initialization process for the rotation angle sensor while performing a calibration of the torque sensor zero point. When components need replacement in wireless door lock control systems without a smart key systems the registration process for recognition codes follows a set sequence of modes which includes adding, rewriting, confirming and prohibition of codes. Users need to register ID codes in the engine immobiliser system to activate both smart key functionality and related features and the Techstream performs the key addition and replacement procedures.

Steering lock system initialization might become necessary after terminal disconnection or reconnection to start the engine when battery voltage remains low to prevent normal operations. To program the replacement ECM with the Vehicle Identification Number (VIN) the Techstream links to DLC3 so the user must verify VIN then enter ON mode to reach relevant menus for reading or writing VIN data. After valve body assembly or shift solenoid valves SL3 and SL4 or TCM replacements, an initialization sequence using the Techstream is needed to set the transaxle compensation code followed by memory reset and a road test for TCM learning. The procedure for reset requires placing the shift lever to N or P then turning off the ignition before connecting Techstream and turning on the ignition and accessing required menus. The transaxle compensation code input process into the TCM requires the code to be obtained from the QR label before starting Techstream connection and code registration. All current TCM compensation codes need to be entered into the alternative TCM after replacement of the component. When replacing components it becomes necessary for the tire pressure warning ECU to demonstrate its transmitter IDs to the Techstream for registration. The process of calibrating the Vehicle Stability Control System includes engine variant learning that technicians can perform through the Techstream interface or by engaging specific DLC3 terminals. A power steering system requires calibration of the rotation angle sensor and torque sensor whenever replacement occurs between either the power steering ECU or steering column assembly. The wireless door lock control system employs Techstream to carry out new recognition code registration after changing door control transmitter or receiver units according to documented procedures. Both new engine immobiliser system component installations and key addition/replacement processes need the Techstream system for registration of ID codes and execution.

The necessary procedures outlined in the work list, which includes each inspection procedure.