Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Rr Sensor Initialization Incomplete (C1AF4)
DESCRIPTION
When it is judged that the rear sensors have not been initialized, the clearance warning ECU assembly stores DTC C1AF4.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AF4 | Rr Sensor Initialization Incomplete | Rear sensor not initialized |
|
CAUTION / NOTICE / HINT
NOTICE:
-
If DTC C1AF4 is output after performing repairs, turn the engine switch on (IG) and turn the intelligent clearance sonar system on to clear the DTC.
Click here
.gif)
-
After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).
Click here
PROCEDURE
| 1. | INITIALIZE REAR CORNER ULTRASONIC SENSOR AND REAR CENTER ULTRASONIC SENSOR |
(a) Initialize the rear corner ultrasonic sensor and rear center ultrasonic sensor.
Click here
|
.gif)
| 2. | CHECK FOR DTC |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
Click here
HINT:
After turning the engine switch from off to on (IG), wait 10 seconds or more before checking for DTCs.
Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes| Result | Proceed to |
|---|---|
| DTC C1AF4 is output | A |
| DTC C1AF4 is not output | B |
HINT:
if DTC C1AF4 is still output after initializing the rear corner ultrasonic sensor and rear center ultrasonic sensor 3 times, replace the clearance warning ECU assembly.
| A |  | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
| B | | END (REAR SENSORS WERE NOT INITIALIZED) |
Fr Sensor Initialization Incomplete (C1AF3)
DESCRIPTION When it is judged that the front sensors have not been initialized, the clearance warning ECU assembly stores DTC C1AF3. DTC No. Detection Item DTC Detection Condition Trouble Are ...
Control Module Communication Bus "A" Off (U0073,U0100,U0124,U0126,U0129,U0140,U0155,U0164)
DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the clearance warning ECU assembly. HINT: If CAN communication system DTCs are stored, they may ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Air Conditioning System: Air Outlet Damper Control Servo Motor Circuit (B1443/43)
DESCRIPTION The No. 3 air conditioning radiator damper servo sub-assembly sends pulse signals to inform the air conditioning amplifier assembly of the damper position. The air conditioning amplifier assembly activates the motor (normal or reverse) based on these signals to move the No. 3 air conditi ...
Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Dynamic radar cruise
control with full-speed
range: Summary of functions
In vehicle-to-vehicle distance control mode, the vehicle automatically
accelerates,
decelerates and stops to match the speed changes of the preceding vehicle
even if the accelerator pedal is not depressed. In constant speed control mode,
the vehicle runs at a fixed speed.
Use the dynamic rad ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0207