TERMINALS OF ECU
1. TERMINAL INSPECTION
Text in Illustration
*a |
Component without harness connected (Steering Lock ECU (Steering Lock Actuator or UPR Bracket Assembly)) |
- |
- |
(a) Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) |
Input/Output |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
Related Data List Item |
---|---|---|---|---|---|---|
S45-1 (GND) - Body ground |
- |
W-B - Body ground |
Ground* |
Always |
Below 1 Ω |
- |
S45-3 (IGE) - S45-1 (GND) |
Input |
Y - W-B |
Steering lock motor activation command signal (motor activation command signal sent from certification ECU (smart key ECU assembly)) |
Any door opened when conditions below met, and then steering lock motor activated:
|
Pulse generation (see waveform) |
Smart Key
|
S45-4 (SLP1) - S45-1 (GND) |
Output |
BE - W-B |
Steering lock bar position signal (output signal from steering unlock sensor) |
Steering locked → unlocked |
11 to 14 V → Below 1.5 V |
Smart Key
|
S45-5 (LIN) - S45-1 (GND) |
Input/Output |
L - W-B |
LIN communication line |
- |
- |
Smart Key
|
S45-6 (IG2) - S45-1 (GND) |
Input |
B - W-B |
Power source mode signal (IG2 power supply input for entire steering lock actuator assembly)* |
Engine switch off → engine switch on (IG) |
Below 1 V → 11 to 14 V |
- |
S45-7 (B) - Body ground |
Input |
R - Body ground |
Power source* |
Always |
11 to 14 V |
- |
NOTICE:
There is 1 motor and 2 sensors built into the steering lock actuator assembly.
HINT:
(1) Waveform
Item |
Content |
---|---|
Tester Connection |
S45-3 (IGE) - S45-1 (GND) |
Tool Setting |
2 V/DIV., 200 ms./DIV. |
Vehicle Condition |
Steering lock motor not operating → Operating → Not operating |
*a |
Steering Lock Motor not Operating |
*b |
Steering Lock Motor Operating |
Reassembly
REASSEMBLY
PROCEDURE
1. TEMPORARILY TIGHTEN FRONT DISC BRAKE BLEEDER PLUG
(a) Provisionally tighten the bleeder plug to the disc brake cylinder.
(b) Install the bleeder plug cap onto the bleeder plug.
2. INSTALL PISTON SEAL
(a) Apply lithium soap base glycol grease to 4 new piston s ...
Key Cannot be Registered
DESCRIPTION
A maximum of 5 master key ID codes can be registered.
WIRING DIAGRAM
Refer to "B2780" (See page )
CAUTION / NOTICE / HINT
NOTICE:
If the transponder key ECU assembly is replaced, refer to Registration (See page
).
PROCEDURE
1.
CHECK REGISTRATIO ...
Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) battery terminal,
initialize the following systems after the cable is reconnected.
Click here
If the battery has been discharged and char ...