TERMINALS OF ECU
NOTICE:
CHECK FORWARD RECOGNITION CAMERA
(a) Disconnect the forward recognition camera connector.
*a |
Front view of wire harness connector (to Forward Recognition Camera) |
- |
- |
(b) Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F46-7 (IGB) - F46-10 (GND) |
BE - W-B |
Power source |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
|||
F46-10 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
(c) Reconnect the forward recognition camera connector.
*a |
Component with harness connected (Forward Recognition Camera) |
- |
- |
(d) Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F46-1 (HTR) - F46-10 (GND) |
R - W-B |
Camera heater (forward recognition hood) operation signal |
Ignition switch ON, camera heater (forward recognition hood) not operating |
11 to 14 V |
Ignition switch ON, camera heater (forward recognition hood) operating |
0 to 1.5 V |
|||
F46-8 (BZ) - F46-10 (GND) |
L - W-B |
Skid control buzzer |
Ignition switch ON, skid control buzzer not operating |
11 to 14 V |
Ignition switch ON, skid control buzzer operating |
0 to 1.5 V |
(e) Check for pulses according to the value(s) in the table below.
HINT:
If the waveform is not similar to that shown in the illustration, a malfunction of a CAN bus line, terminating resistor, or the forward recognition camera is suspected.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F46-5 (CA1P) - F46-10 (GND) |
L - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
F46-11 (CA1N) - F46-10 (GND) |
W - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
F46-6 (CANH) - F46-10 (GND) |
B - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
F46-12 (CANL) - F46-10 (GND) |
W - W-B |
CAN communication signal |
Ignition switch ON |
Pulse generation (See waveform 2) |
(1) Waveform 1
Item |
Content |
---|---|
Terminal Name |
Between F46-5 (CA1P) and F46-10 (GND) Between F46-6 (CANH) and F46-10 (GND) |
Tester Range |
1 V/DIV., 10 μsec./DIV. |
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
(2) Waveform 2
Item |
Content |
---|---|
Terminal Name |
Between F46-11 (CA1N) and F46-10 (GND) Between F46-12 (CANL) and F46-10 (GND) |
Tester Range |
1 V/DIV., 10 μsec./DIV. |
Condition |
Ignition switch ON |
HINT:
The waveform varies depending on the CAN communication signal.
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
Disassembly
DISASSEMBLY
PROCEDURE
1. INSPECT COUNTERSHAFT REVERSE GEAR THRUST CLEARANCE
(a) Using a dial indicator, measure the countershaft reverse gear thrust
clearance.
Standard clearance:
0.150 to 0.300 mm (0.0060 to 0.0118 in.)
If the clearance is outside the specification, repl ...
System Description
SYSTEM DESCRIPTION
1. FRONT SEAT HEATER
(a) By operating the seat heater switch on the air conditioning control assembly,
the temperature can be controlled within the range of 36 to 42.2°C (96 to 108°F).
(b) The on/off status and heater level of each seat heater are indicated by the
respect ...