TERMINALS OF ECU
NOTICE:
- DTCs may be output when connectors are disconnected during inspection.
Therefore, be sure to clear the DTCs using the Techstream once the
inspection has been completed.
- Do not apply excessive force to the O5 forward recognition camera connector.
 CHECK FORWARD RECOGNITION CAMERA
(a) Measure the voltage and resistance according to the value(s) in the table below. |
Terminal No. (Symbol) | Wiring Color |
Terminal Description | Condition |
Specified Condition | |
O5-7 (IGB) - O5-10 (GND) |
LA-P - LA |
Power source | Engine switch on (IG) |
11 to 14 V | |
Engine switch off | Below 1 V | |
O5-10 (GND) - Body ground |
LA - Body ground | Ground |
Always | Below 1 Ω |
(b) Measure the voltage according to the value(s) in the table below. |
Terminal No. (Symbol) | Wiring Color |
Terminal Description | Condition |
Specified Condition | |
O5-1 (HTR) - O5-10 (GND) |
B - LA | Forward recognition with heater hood sub-assembly operation signal |
Engine switch on (IG) Forward recognition with heater hood sub-assembly not operating |
11 to 14 V | |
Engine switch on (IG) Forward recognition with heater hood sub-assembly operating |
Below 1 V | (c) 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 | |
O5-5 (CA1P) - O5-10 (GND) |
L - LA | CAN communication signal |
Engine switch on (IG) |
Pulse generation (See waveform 1) | |
O5-11 (CA1N) - O5-10 (GND) |
W - LA | CAN communication signal |
Engine switch on (IG) |
Pulse generation (See waveform 2) | |
O5-6 (CANH) - O5-10 (GND) |
G - LA | CAN communication signal |
Engine switch on (IG) |
Pulse generation (See waveform 1) | |
O5-12 (CANL) - O5-10 (GND) |
W - LA | CAN communication signal |
Engine switch on (IG) |
Pulse generation (See waveform 2) |
(1) WAVEFORM 1 |
Item | Content | |
Terminal Name | Between O5-5 (CA1P) and O5-10 (GND)
Between O5-6 (CANH) and O5-10 (GND) | |
Tester Range | 1 V/DIV., 10 μsec./DIV. | |
Condition | Engine switch on (IG) |
HINT: The waveform varies depending on the CAN communication signal.
 (2) WAVEFORM 2 |
Item | Content | |
Terminal Name | Between O5-11 (CA1N) and O5-10 (GND)
Between O5-12 (CANL) and O5-10 (GND) | |
Tester Range | 1 V/DIV., 10 μsec./DIV. | |
Condition | Engine switch on (IG) |
HINT: The waveform varies depending on the CAN communication signal.
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