Toyota Camry (XV70): Front Recognition Camera Heater Malfunction (C1AAE00)
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 |
|---|---|---|---|
|
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:
|
|
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.
- When the forward recognition camera is replaced with a new one or the windshield glass is replaced or removed/installed, make sure to read Before Starting Adjustment, then perform optical axis alignment for the forward recognition camera and clear the vehicle control history for each system.
HINT:
Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.
One Time Recognition: Click here
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Sequential Recognition: Click here
Driving Adjustment: Click here
PROCEDURE
|
1. | CHECK FOR DTCs |
(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 is not output | A |
|
DTC is output | B |
| A |
.gif) | USE SIMULATION METHOD TO CHECK
|
|
.gif)
| 2. |
INSPECT FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY |
(a) Turn the ignition switch off.
| (b) Disconnect the forward recognition with heater hood sub-assembly connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
V16-1 (IG1) - V16-2 (HTR) |
Always | 28.5 to 31.5 Ω |
| NG | | REPLACE FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY |
|
| 3. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE VOLTAGE) |
|
*a | Front view of wire harness connector (to Forward Recognition with Heater Hood Sub-assembly) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
V16-1 (IG1) - Body ground |
Ignition switch ON | 8 to 16 V |
|
Ignition switch off | Below 1.5 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 4. |
CHECK HARNESS AND CONNECTOR (FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA) |
(a) Disconnect the V6*1, V21*2 forward recognition camera connector.
- *1: Before Nov. 2021 Production
- *2: From Nov. 2021 Production
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Before Nov. 2021 Production|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
V16-2 (HTR) - V6-1 (HTR) |
Always | Below 1 Ω |
|
V16-2 (HTR) or V6-1 (HTR) - Body ground |
Always | 10 kΩ or higher |
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
V16-2 (HTR) - V21-1 (HTR) |
Always | Below 1 Ω |
|
V16-2 (HTR) or V21-1 (HTR) - Body ground |
Always | 10 kΩ or higher |
| OK | | REPLACE FORWARD RECOGNITION CAMERA |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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