DESCRIPTION
The forward recognition camera controls the current supplied to the camera heater (forward recognition hood).
If the forward recognition camera detects a malfunction in the camera heater (forward recognition hood) circuit, DTC C1AAE is stored.
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:
|
|
Vehicle Condition |
Vehicle Condition |
||
---|---|---|---|
Pattern 1 |
Pattern 2 |
||
Diagnosis Condition |
Ignition switch ON |
â—‹ |
â—‹ |
Malfunction Status |
|
â—‹ |
|
|
â—‹ |
||
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:
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 |
|
2. |
CHECK CAMERA HEATER (FORWARD RECOGNITION HOOD) |
(a) Turn the ignition switch off.
(b) Disconnect the F47 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 |
|
---|---|---|---|
2 (HTR) - A-2 |
Always |
Ignition switch off |
36.1 to 39.9 Ω |
1 (IG1) - A-1 |
Always |
Ignition switch off |
Below 1 Ω |
A-1 - 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 F47 camera heater (forward recognition hood) connector.
NG | ![]() |
REPLACE CAMERA HEATER (FORWARD RECOGNITION HOOD) |
|
3. |
CHECK HARNESS AND CONNECTOR (CAMERA HEATER (FORWARD RECOGNITION HOOD)) |
(a) Disconnect the camera heater (forward recognition hood) connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F47-1 (IG1) - Body ground |
Ignition switch ON |
11 to 14 V |
F47-1 (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) |
|
4. |
CHECK HARNESS AND CONNECTOR (CAMERA HEATER (FORWARD RECOGNITION HOOD) - FORWARD RECOGNITION CAMERA) |
(a) Disconnect the F47 camera heater (forward recognition hood) connector.
(b) Disconnect the F46 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 |
---|---|---|
F47-2 (HTR) - F46-1 (HTR) |
Always |
Below 1 Ω |
F47-2 (HTR) or F46-1 (HTR) - Body ground |
Always |
10 kΩ or higher |
(d) Connect the F46 forward recognition camera connector.
(e) Connect the F47 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) |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
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Control
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Manual Control
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ILLUSTRATION
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DISASSEMBLY
PROCEDURE
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(a) Using a hammer and chisel, raise the flange of the bushing diagonally as
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