Lexus NX: 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 power 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 CENTER ULTRASONIC SENSOR AND REAR CORNER ULTRASONIC SENSOR |
(a) Initialize the rear center ultrasonic sensor and rear corner ultrasonic sensor.
Click here
|
.gif)
| 2. | CHECK FOR DTC |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
HINT:
After turning the power 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 center ultrasonic sensor and rear corner ultrasonic sensor 3 times, replace the clearance warning ECU assembly.
| A | .gif) | REPLACE CLEARANCE WARNING ECU ASSEMBLY |
| B | | END (REAR SENSORS WERE NOT INITIALIZED) |
READ NEXT:
Control Module Communication Bus "A" Off (U0073,U0100,U0124,U0126,U0129,U0140,U0155,U0164,U0293)
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
CAN Communication Failure (Message Registry) (U1000)
DESCRIPTION When the clearance warning ECU assembly determines that the CAN communication circuit is malfunctioning during self-diagnosis, DTC U1000 is stored. DTC No. Detection Item DTC Detect
SEE MORE:
Components
COMPONENTS ILLUSTRATION *A for 2WD *B for AWD *1 HOOD LOCK ASSEMBLY *2 NO. 6 INVERTER BRACKET *3 UPPER RADIATOR SUPPORT SUB-ASSEMBLY *4 FRONT RADIATOR SIDE AIR GUIDE PLATE RH *5 FRONT RADIATOR SIDE AIR GUIDE PLATE LH *6 WIRE HARNESS N*m (kgf*cm, ft.*lbf
Installation
INSTALLATION PROCEDURE 1. INSTALL NO. 2 ECM BRACKET (a) Install the No. 2 ECM bracket to the ECM with the 2 screws. Torque: 3.0 N·m {31 kgf·cm, 27 in·lbf} 2. INSTALL NO. 1 ECM BRACKET (a) Install the No. 1 ECM bracket to the ECM with the 2 screws. Torque: 3.0 N·m {31 kgf·cm, 27 in·lbf} 3. IN
