SFI System: Precaution

INITIALIZATION
NOTE: Perform the Registration (VIN registration) when replacing the ECM (See REGISTRATION ).

HINT:

Reset memory or initialization cannot be completed by only disconnecting and reconnecting the cable of the negative (-) battery terminal.
FOR USING TECHSTREAM
CAUTION:
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 is for driving 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 electrical system or electrical components.

Text in Illustration

ILLUSTRATION LEGEND

*1	Negative (-) Battery Terminal
*2	Cable

Fig 1: Disconnecting Battery Cable

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Before disconnecting and reconnecting the battery cable, turn the ignition 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.

NOTE:

When disconnecting and reconnecting the cable of the negative (-) battery terminal, the cowl top ventilator louver must also be removed and installed. Be sure to install the cowl top ventilator louver properly. If it is not installed properly, water may enter the engine compartment and cause malfunctions.
When the cable is disconnected from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected.

SYSTEM NAME CHART

System Name	See Procedure
Back Door Closer System	INITIALIZATION
Power Back Door System	INITIALIZATION

EXPRESSION OF IGNITION SWITCH

HINT:

The type of ignition switch used on this model differs according to the specifications of the vehicle.

The expressions listed in the table below are used in this article.

IGNITION SWITCH REFERENCE

Expression	Switch Type
Expression	Ignition Switch (Position)	Engine Switch (Condition)
Ignition switch off	LOCK	Off
Ignition switch ON	ON	On (IG)
Ignition switch ACC	ACC	On (ACC)
Engine start	START	Start