Toyota Yaris: Front Camera System / Control Module Internal Temperature Sensor A/B Correlation Signal Compare Failure (C100A62,C1A9304,C1A9308,C1A9444,C1A9445,C1A9447,C1A9487-C1A961C)
DESCRIPTION
When an internal malfunction is detected in the forward recognition camera, these DTCs are stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C100A62 | Control Module Internal Temperature Sensor A/B Correlation Signal Compare Failure | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
| C1A9304 | Main Microcomputer in Front Recognition Camera System Internal Failure | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
| C1A9308 | Main Microcomputer in Front Recognition Camera Bus Signal / Message Failure | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
| C1A9444 | Image Processing Microcomputer in Front Recognition Camera Data Memory Failure | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
| C1A9445 | Image Processing Microcomputer in Front Recognition Camera Program Memory Failure | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
| C1A9447 | Image Processing Microcomputer in Front Recognition Camera Watchdog/Safety MCU Failure | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
| C1A9487 | Image Processing Microcomputer to Main Microcomputer in Front Recognition Camera Missing Message | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
| C1A9500 | Image Processing Module Malfunction in Front Recognition Camera | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
| C1A961C | Power Supply Circuit in Front Recognition Camera Circuit Voltage Out of Range | A forward recognition camera internal malfunction is detected. | Forward recognition camera |
CAUTION / NOTICE / HINT
NOTICE:
- 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 and 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
Sequential Recognition: Click here
Driving Adjustment: Click here
PROCEDURE
| 1. | CHECK FOR DTCs |
(a) Turn the ignition switch off.
(b) Turn the ignition switch ON and wait 80 seconds or more.
(c) Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes| Result | Proceed to |
|---|---|
| DTC C100A62, C1A9304, C1A9308, C1A94444, C1A9445, C1A9447, C1A9487, C1A9500 and C1A961C are not output | A |
| DTC C100A62, C1A9304, C1A9308, C1A94444, C1A9445, C1A9447, C1A9487, C1A9500 or C1A961C is output | B |
| A |
 | USE SIMULATION METHOD TO CHECK |
|
| 2. | REPLACE FORWARD RECOGNITION CAMERA |
(a) Replace the forward recognition camera.
Click here
(b) Perform forward recognition camera adjustment.
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
Sequential Recognition: Click here
Driving Adjustment: Click here
| NEXT |
 | END |
Vehicle Control History
VEHICLE CONTROL HISTORY NOTICE: Vehicle control history may be recorded due to the replacement or repair of related parts. CHECK VEHICLE CONTROL HISTORY (FRONT CAMERA SYSTEM) (a) According to the display on the GTS, check the vehicle control history...
Front Recognition Camera Optical Axis Misalignment Malfunction (C1AA800)
DESCRIPTION The forward recognition camera monitors its optical axis status. If it determines that the optical axis alignment has become misaligned, it will store DTC C1AA800...
Other information:
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Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Check semiconductor power integration ECU (1) Check for DTCs. Body Electrical > Power Integration No.1 > Trouble Codes (b) Check power distribution box assembly (1) Check for DTCs. Body Electrical > Power Distribution Box > Trouble Codes CLEAR DTC (a) Check semiconductor power integration ECU (1) Clear the DTCs...
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Break-In Period
No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.
Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.