DESCRIPTION The forward recognition camera controls the current supplied to the camera heater (forward recognition hood). |
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area | |
C1AAE | Heater Circuit |
Either of the following conditions is met after 3 seconds have elapsed since the ignition switch was turned to ON:
- While a camera heater (forward recognition hood) ON request is being
sent, a short circuit malfunction is detected in the camera heater
(forward recognition hood) for 5 seconds or more.
- While a camera heater (forward recognition hood) ON request is not being
sent, an open circuit or ground short malfunction is detected in the
camera heater (forward recognition hood) for 5 seconds or more.
|
- Camera heater (forward recognition hood)
- Forward recognition camera
- Harness or connector
| DTC Detection Conditions |
Vehicle Condition |
Vehicle Condition | |
Pattern 1 | Pattern 2 | |
Diagnosis Condition | Ignition switch ON |
○ | ○ | |
Malfunction Status |
- While a camera heater (forward recognition hood) ON request is being
sent, a short circuit malfunction is detected in the camera heater
(forward recognition hood).
| ○ | |
- While a camera heater (forward recognition hood) ON request is not being
sent, an open circuit or ground short malfunction is detected in the
camera heater (forward recognition hood).
| |
○ | |
Detection Time | 5 seconds or more |
5 seconds or more | |
Number of Trips | 1 trip |
1 trip | HINT: If any of the detection patterns above are met, a DTC is output. 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 it will not match the
information from the vehicle and a DTC may be stored.
- After replacing or removing/installing the forward recognition camera or
windshield glass, make sure to perform forward recognition camera axis
adjustment.
Click here 
PROCEDURE |
1. | CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM) |
(a) Clear the DTCs. Click here
(b) Make sure that the DTC detection conditions are met. HINT: If the conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs. Click here
|
Result | Proceed to | |
DTC C1AAE is not output |
A | | DTC C1AAE is output |
B |
| A |
 | USE SIMULATION METHOD TO CHECK |
|
B |
 | |
| 2. |
CHECK CAMERA HEATER (FORWARD RECOGNITION HOOD) |
(a) Turn the ignition switch off. (b) Disconnect the W10 camera heater (forward recognition hood) connector.
|
*1 | Camera Heater (Forward Recognition Hood) |
*2 | Diode | |
*a | Component without harness connected |
- | - |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
W10-2 (HTR) - A-2 | Always |
Ignition switch off | 36.1 to 39.9 Ω | |
W10-1 (IG1) - A-1 | Always |
Ignition switch off | Below 1 Ω | |
A-1 - A-2 |
- Positive (+) tester probe → A-1
- Negative (-) tester probe → A-2
HINT: If the
tester probes are connected to the wrong terminals, due to the existence
of the diode, current will not flow and the result will be the same as
for an open circuit. | Ignition switch off |
Below 1 Ω | (d) Connect the W10 camera heater (forward recognition hood) connector.
| NG |
| REPLACE CAMERA HEATER (FORWARD RECOGNITION HOOD) |
|
OK | |
| |
| 3. |
CHECK HARNESS AND CONNECTOR (CAMERA HEATER (FORWARD RECOGNITION HOOD)) |
| (a) Disconnect the camera heater (forward recognition hood) connector. |
 |
|
*a | Front view of wire harness connector
(to Camera Heater (Forward Recognition Hood)) | | |
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage: |
Tester Connection | Switch Condition |
Specified Condition | |
W10-1 (IG1) - Body ground |
Ignition switch ON | 11 to 14 V | |
W10-1 (IG1) - Body ground |
Ignition switch off | Below 1.5 V |
(c) Connect the camera heater (forward recognition hood) connector.
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
OK | |
| |
| 4. |
CHECK HARNESS AND CONNECTOR (CAMERA HEATER (FORWARD RECOGNITION HOOD) - FORWARD RECOGNITION CAMERA) |
(a) Disconnect the W10 camera heater (forward recognition hood) connector.
(b) Disconnect the W9 forward recognition camera connector. (c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Switch Condition |
Specified Condition | |
W10-2 (HTR) - W9-1 (HTR) |
Always | Below 1 Ω | |
W10-2 (HTR) or W9-1 (HTR) - Body ground |
Always | 10 kΩ or higher |
(d) Connect the W9 forward recognition camera connector. (e) Connect the W10 camera heater (forward recognition hood) connector.
| OK |
| REPLACE FORWARD RECOGNITION CAMERA |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMERA HEATER (FORWARD RECOGNITION HOOD) - FORWARD RECOGNITION CAMERA) | | 
