TERMINALS OF ECU
TERMINAL INSPECTION
*a |
Component without harness connected (Steering Lock ECU (Steering Lock Actuator or Upper 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 |
---|---|---|---|---|---|---|
F78-1 (GND) - Body ground |
- |
W-B - Body ground |
Ground*1 |
Always |
Below 1 Ω |
- |
F78-3 (IGEI) - F78-1 (GND) |
Input |
P - 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
|
F78-4 (SLP1) - F78-1 (GND) |
Output |
G - 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
|
F78-5 (LIN) - F78-1 (GND) |
Input/Output |
V - W-B |
LIN communication line |
- |
- |
Smart Key
|
F78-6 (IG2) - F78-1 (GND) |
Input |
B - W-B |
Power source mode signal (IG2 power supply input for entire steering lock actuator or upper bracket assembly)*1 |
Engine switch off → engine switch on (IG) |
Below 1 V → 11 to 14 V |
- |
F78-7 (B) - Body ground |
Input |
L - Body ground |
Power source*1 |
Always |
11 to 14 V |
- |
NOTICE:
There is 1 motor and 2 sensors built into the steering lock actuator or upper bracket assembly.
HINT:
(1) Waveform
*a |
Steering Lock Motor not Operating |
*b |
Steering Lock Motor Operating |
Item |
Content |
---|---|
Tester Connection |
F78-3 (IGEI) - F78-1 (GND) |
Tool Setting |
2 V/DIV., 200 ms./DIV. |
Vehicle Condition |
Steering lock motor not operating → Operating → Not operating |
Toyota CH-R Service Manual > Occupant Classification System: Dtc Check / Clear
DTC CHECK / CLEAR
DTC CHECK
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON, and wait for at least 10 seconds.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Occupant Detection / Trouble
Codes.
Body E ...
Toyota CH-R Service Manual > Automatic Headlight Beam Level Control System: Dtc Check / Clear
DTC CHECK / CLEAR
CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.
Body Electrical > HL AutoLeveling > Trouble Codes
(e) Check for DTCs.
CL ...