TERMINALS OF ECU
CHECK MILLIMETER WAVE RADAR SENSOR
(a) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
If the result is not as specified, there may be a malfunction on the wire harness side.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
A2-8 (IGB) - A2-1 (SGND) |
B - W-B |
Power source |
Ignition switch ON |
11 to 14 V |
A2-1 (SGND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
(b) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
A2-3 (CA2H) - A2-1 (SGND) |
G - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
A2-2 (CA2L) - A2-1 (SGND) |
GR - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
A2-5 (CA1P) - A2-1 (SGND) |
G - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
A2-6 (CA1N) - A2-1 (SGND) |
R - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
(c) WAVEFORM 1
(1) CAN communication signal
Item |
Content |
---|---|
Terminal Name |
Between A2-3 (CA2H) and A2-1 (SGND) Between A2-5 (CA1P) and A2-1 (SGND) |
Tester Range |
1 V/DIV., 10 μsec./DIV. |
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
(d) WAVEFORM 2
(1) CAN communication signal
Item |
Content |
---|---|
Terminal Name |
Between A2-2 (CA2L) and A2-1 (SGND) Between A2-6 (CA1N) and A2-1 (SGND) |
Tester Range |
1 V/DIV., 10 μsec./DIV. |
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
CHECK FORWARD RECOGNITION CAMERA
(a) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
If the result is not as specified, there may be a malfunction on the wire harness side.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
R5-8 (BZ) - R5-10 (GND) |
B - W-B |
Pre-collision city buzzer |
Ignition switch ON, pre-collision city buzzer not operating |
11 to 14 V |
Ignition switch ON, pre-collision city buzzer operating |
0 to 1.5 V |
|||
R5-3 (LKSW) - R5-10 (GND) |
R - W-B |
Pre-collision system cancel switch assembly |
Pre-collision system cancel switch assembly being pressed |
Below 1 Ω |
Pre-collision system cancel switch assembly not being pressed |
100 kΩ or higher |
|||
R5-7 (IGB) - R5-10 (GND) |
B - W-B |
Power source |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
|||
R5-10 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
(b) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
R5-5 (CA1P) - R5-10 (GND) |
R - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
R5-6 (CANH) - R5-10 (GND) |
G - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
R5-11 (CA1N) - R5-10 (GND) |
GR - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
R5-12 (CANL) - R5-10 (GND) |
R - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
(c) WAVEFORM 1
(1) CAN communication signal
Item |
Content |
---|---|
Terminal Name |
Between R5-5 (CA1P) - R5-10 (GND) Between R5-6 (CANH) - R5-10 (GND) |
Tester Range |
1 V/DIV., 10 μsec./DIV. |
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
(d) WAVEFORM 2
(1) CAN communication signal
Item |
Content |
---|---|
Terminal Name |
Between R5-11 (CA1N) - R5-10 (GND) Between R5-12 (CANL) - R5-10 (GND) |
Tester Range |
1 V/DIV., 10 μsec./DIV. |
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
Toyota CH-R Service Manual > Toyota Entune System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Telematics System
DTC No.
Detection Item
Link
U0142
Lost Communication with Body Control Module "B"
U0155
Lost Communication with Instrument Panel Cl ...
Toyota CH-R Service Manual > Transmission Control Cable: Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration)
that must be performed after parts are removed, installed, or replaced during the
transmission control cable assembly removal/installation are shown below.
Necessary Procedure A ...