Lexus NX: Communication Error from VSC to HV ECU (P1630)
DESCRIPTION
The skid control ECU (brake booster with master cylinder assembly) sends signals such as brake request signals to the hybrid vehicle control ECU. If an abnormal signal is detected, the hybrid vehicle control ECU stores DTC P1630.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| P1630 | Communication Error from VSC to HV ECU | When the dynamic radar cruise control system is operating, the hybrid vehicle control ECU detects abnormal data sent from the skid control ECU (brake booster with master cylinder assembly) for approximately 1 second or more. |
| Radar Cruise1 |
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the hybrid vehicle control ECU, refer to Service Bulletin.
PROCEDURE
| 1. | CHECK FOR DTCs (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) |
(a) Check for electronically controlled brake system DTCs.
Click here .gif)
| Result | Proceed to |
|---|---|
| Electronically controlled brake system DTCs are not output | A |
| Electronically controlled brake system DTCs are output | B |
| B | .gif) | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
|
.gif)
| 2. | CHECK FOR DTCs (Radar Cruise1) |
(a) Clear the DTCs.
Click here
(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.
Click here
| Result | Proceed to |
|---|---|
| DTC P1630 is not output | A |
| DTC P1630 is output | B |
| A | | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE HYBRID VEHICLE CONTROL ECU |
READ NEXT:
Lost Communication with Cruise Control Module (U0104,U0122,U0293)
DESCRIPTION The hybrid vehicle control ECU communicates with each sensor and ECU via CAN communication. If any malfunction is detected in a CAN communication circuit, one or more CAN communication sys
Lost Communication with Multi-axis Acceleration Sensor Module Missing Message (U012587,U012687,U012987,U015587,U029387,U110687)
DESCRIPTION The forward recognition camera communicates with each sensor and ECU via CAN communication. If any malfunction is detected in a CAN communication circuit, one or more CAN communication sys
Lost Communication with Cruise Control Front Distance Range Sensor Single Sensor or Center Missing Message (U023587)
DESCRIPTION The forward recognition camera communicates with the millimeter wave radar sensor assembly via CAN communication. If a communication malfunction between the forward recognition camera and
SEE MORE:
Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure described below is for the LH side.
PROCEDURE 1. INSTALL CLEARANCE LIGHT ASSEMBLY LH (a) Attach the 2 claws to install the clearance light assembly LH. (b) Install the 3 screws and clip.
Removal
REMOVAL PROCEDURE 1. REMOVE FRONT DOOR TRIM COVER LH Click here 2. REMOVE FRONT DOOR INSIDE HANDLE BEZEL PLUG LH Click here 3. REMOVE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY WITH FRONT DOOR ARMREST BASE PANEL Click here 4. REMOVE FRONT DOOR TRIM BOARD SUB-ASSEMBLY LH Click here 5.
