| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM1000000021JC9 |
| Model Year Start: 2022 | Model: RAV4 | Prod Date Range: [12/2021 - ] |
| Title: CRUISE CONTROL: FRONT RADAR SENSOR SYSTEM: C1A8749-C1A8987,C1A8C08; Microwave Integrated Circuit (VCO Circuit) in Front Radar Sensor Internal Electronic Failure; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ] | ||
|
DTC |
C1A8749 |
Microwave Integrated Circuit (VCO Circuit) in Front Radar Sensor Internal Electronic Failure |
|
DTC |
C1A8887 |
Microwave Integrated Circuit to Antenna in Front Radar Sensor Missing Message |
|
DTC |
C1A8987 |
Antenna to Microwave Integrated Circuit in Front Radar Sensor Missing Message |
|
DTC |
C1A8C08 |
Main Microcomputer in Front Radar Sensor Bus Signal / Message Failure |
DESCRIPTION
When an internal malfunction is detected in the millimeter wave radar sensor assembly, a DTC is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1A8749 |
Microwave Integrated Circuit (VCO Circuit) in Front Radar Sensor Internal Electronic Failure |
When the ignition switch is ON, the millimeter wave radar sensor assembly detects a malfunction in the microwave integrated circuit (VCO circuit). |
Millimeter wave radar sensor assembly |
|
C1A8887 |
Microwave Integrated Circuit to Antenna in Front Radar Sensor Missing Message |
When the ignition switch is ON, the millimeter wave radar sensor assembly detects a malfunction in the transmitting antenna. |
Millimeter wave radar sensor assembly |
|
C1A8987 |
Antenna to Microwave Integrated Circuit in Front Radar Sensor Missing Message |
When the ignition switch is ON, the millimeter wave radar sensor assembly detects a malfunction in the receiving antenna. |
Millimeter wave radar sensor assembly |
|
C1A8C08 |
Main Microcomputer in Front Radar Sensor Bus Signal / Message Failure |
When the ignition switch is ON, the millimeter wave radar sensor assembly detects an internal communication malfunction. |
Millimeter wave radar sensor assembly |
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored.
-
When the millimeter wave radar sensor assembly has been replaced with a new one, it is necessary to perform millimeter wave radar sensor assembly beam axis alignment and to clear the vehicle control history. Before performing the Driving Adjustment, make sure to read Before Starting Driving Adjustment.
HINT:
Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.
Triangle Target: Click here
![2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: TARGET ADJUSTMENT(TRIANGLE TARGET)](/t3Portal/stylegraphics/info.gif)
Flat Surface Target: Click here
Driving Adjustment: Click here
PROCEDURE
|
1. |
REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
(a) Replace the millimeter wave radar sensor assembly with a new one.
Click here
| NEXT |
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END |
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