DESCRIPTION The forward recognition camera controls the flow of current to the forward recognition with heater hood 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 | |
C1AAE | Heater Circuit | Either of the following conditions is met after 2 seconds have elapsed since the engine switch was turned on (IG):
- 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
- Wire harness or connector
| WIRING DIAGRAM
 CAUTION / NOTICE / HINT
NOTICE:
- 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.
- If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.
Click here 
PROCEDURE (a) Clear the DTCs. Chassis > Front Recognition Camera > Clear DTCs
(b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs. Chassis > Front Recognition Camera > Trouble Codes
|
Result | Proceed to | |
DTC C1AAE is not output |
A | | DTC C1AAE is output |
B |
| A |
 | USE SIMULATION METHOD TO CHECK |
|
B |
 | |
| 2. |
INSPECT FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY |
(a) Turn the engine switch off.
| (b) Disconnect the O11 forward recognition with heater hood sub-assembly connector. |
 |
|
*a | Component without harness connected
(Forward Recognition with Heater Hood Sub-assembly) | | |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
O11-1 (IG1) - O11-2 (HTR) |
Engine switch off | 38 to 42 Ω |
(d) Connect the O11 forward recognition with heater hood sub-assembly connector.
| NG |
| REPLACE FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY |
|
OK | |
| |
| 3. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE VOLTAGE) |
| (a) Disconnect the O11 forward recognition with heater hood sub-assembly connector. |
 |
|
*a | Front view of wire harness connector
(to Forward Recognition with Heater Hood Sub-assembly) | | |
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage: |
Tester Connection | Condition |
Specified Condition | |
O11-1 (IG1) - Body ground |
Engine switch on (IG) |
11 to 14 V | |
Engine switch off | Below 1.5 V |
(c) Connect the O11 forward recognition with heater hood sub-assembly connector.
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
OK | |
| |
| 4. |
CHECK HARNESS AND CONNECTOR (FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA) |
(a) Disconnect the O11 forward recognition with heater hood sub-assembly connector.
(b) Disconnect the O5 forward recognition camera connector. (c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
O11-2 (HTR) - O5-1 (HTR) |
Always | Below 1 Ω | |
O11-2 (HTR) or O5-1 (HTR) - Body ground |
Always | 10 kΩ or higher |
(d) Connect the O5 forward recognition camera connector. (e) Connect the O11 forward recognition with heater hood sub-assembly connector.
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA) |
|
OK | |
| |
| 5. |
CHECK HARNESS AND CONNECTOR (FORWARD RECOGNITION CAMERA - BODY GROUND) |
(a) Turn the engine switch off. (b) Disconnect the O5 forward recognition camera connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
O5-10 (GND) - Body ground |
Always | Below 1 Ω |
(d) Connect the O5 forward recognition camera connector.
| OK |
| REPLACE FORWARD RECOGNITION CAMERA |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (FORWARD RECOGNITION CAMERA - BODY GROUND) | | 
