Precaution [09/2014 - 10/2015]
WARNING: This page is about a different car, the 2015 Lexus GS 350. However, it is still accessible from the selected car via links, so may be relevant.
- INITIALIZATION NOTE:
- Perform the Registration (VIN registration) when replacing the ECM (Refer to REGISTRATION [09/2014 - 10/2015] ).
- Perform initialization (throttle position) after replacing the throttle with motor body assembly or cleaning any throttle body components (Refer to INITIALIZATION [09/2014 - 10/2015] ).
- Make sure to perform Reset Memory (AT initialization), when replacing the automatic transmission assembly (for AA81E), engine assembly or ECM (Refer to INITIALIZATION [09/2014 - 10/2015] ).
- Make sure to perform Reset Memory (AT initialization), when replacing the automatic transmission assembly (for A760H), engine assembly or ECM (Refer to INITIALIZATION [09/2014 - 10/2015] ).
- If the ECM is replaced, register the ECU communication ID for Engine Immobiliser System (Refer to REGISTRATION [09/2014 - 10/2015] ).
HINT:
Reset memory or initialization cannot be completed by only disconnecting and reconnecting the cable of the negative (-) battery terminal or EFI MAIN and ETCS fuses.
- FOR USING TECHSTREAM WARNING:
Observe the following items for safety reasons:
- Before using the Techstream, read the instruction manual.
- Prevent the Techstream cable from being caught on the pedals, shift lever or steering wheel when driving with the Techstream connected to the vehicle.
- When driving the vehicle for testing purposes using the Techstream, 2 persons are required. One drives the vehicle and the other operates the Techstream.
- DISCONNECTING AND RECONNECTING NEGATIVE BATTERY CABLE
- Before performing work on electronic components, disconnect the cable from the negative (-) battery terminal to prevent damage to the electrical system or electrical components.NOTE:
After the engine switch is turned off, the multi-media module receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) battery terminal.
WAITING TIME BEFORE DISCONNECTING CABLE FROM NEGATIVE (-) BATTERY TERMINALCondition Waiting Time Vehicle enrolled in safety connect system 6 minutes Vehicle not enrolled in safety connect system 1 minute TEXT IN ILLUSTRATION*1 Negative (-) Battery Terminal *2 Cable - Before disconnecting and reconnecting the battery cable, turn the engine switch off and the headlight switch off. Then loosen the terminal nut completely. Do not damage the cable or terminal.
- When the battery cable is disconnected, the clock and radio settings and stored DTCs are cleared. Therefore, before disconnecting the battery cable, make a note of them.
- Before performing work on electronic components, disconnect the cable from the negative (-) battery terminal to prevent damage to the electrical system or electrical components.