The forward recognition camera controls the current to the forward recognition hood with heater sub-assembly.
If the forward recognition camera detects a malfunction in the forward recognition with heater hood sub-assembly circuit, it will store this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AAE00 | Front Recognition Camera Heater Malfunction | Either of the following conditions is met after 10 seconds have elapsed since the ignition switch was turned to ON:
·
Short to +B detected in the forward recognition with heater hood sub-assembly circuit for 1 second or more cumulatively ·
Open or short to ground detected in the forward recognition with heater hood sub-assembly circuit for 5 seconds or more |
·
Forward recognition with heater hood sub-assembly ·
Forward recognition camera ·
Harness or connector |
Inspect the fuses for circuits related to this system before performing the following procedure.
When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
When the forward recognition camera is replaced with a new one, make sure to read Before Starting Adjustment, then perform optical axis alignment for the forward recognition camera and clear the vehicle control history (RoB) for each system.
Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.
One Time Recognition: Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>TARGET ADJUSTMENT(ONE TIME RECOGNITION)202409,999999,_51,_083055,_0401005,RM100000002NTD0,
Sequential Recognition: Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>TARGET ADJUSTMENT(SEQUENTIAL RECOGNITION)202409,999999,_51,_083055,_0401005,RM100000002NTD3,
Driving Adjustment: Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>DRIVING ADJUSTMENT202409,999999,_51,_083055,_0401005,RM100000002NTD4,
Clear the DTCs.
Make sure that the DTC detection conditions are met.
If the conditions are not met, the system cannot detect the malfunction.
Recheck for DTCs and check that no DTCs are output.
| Result | Proceed to |
|---|---|
| DTC is not output | A |
| DTC is output | B |
A
B
| *a | Component without harness connected
(Forward Recognition with Heater Hood Sub-assembly) |
Turn the ignition switch off.
Disconnect the P17 forward recognition with heater hood sub-assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| 1 (IG1) - 2 (HTR) | Ignition switch off | 28.5 to 31.5 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Front view of wire harness connector
(to Forward Recognition with Heater Hood Sub-assembly) |
Disconnect the forward recognition with heater hood sub-assembly connector.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| P17-1 (IG1) - Body ground | Ignition switch ON | 8 to 16 V |
| Ignition switch off | Below 1.5 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the P17 forward recognition with heater hood sub-assembly connector.
Disconnect the P8 forward recognition camera connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P17-2 (HTR) - P8-1 (HTR) | Always | Below 1 Ω |
| P17-2 (HTR) or P8-1 (HTR) - Body ground | Always | 10 kΩ or higher |
Reconnect the P8 forward recognition camera connector.
Reconnect the P17 forward recognition with heater hood sub-assembly connector.
| Proceed to |
|---|
| OK |
| NG |
OK
NG