Dtc P1630 Communication Error From Vsc To Ecm

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
Cruise Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

REPLACE MASTER CYLINDER SOLENOID (SKID CONTROL ECU)

CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

DTC P1630 Communication Error from VSC to ECM


DESCRIPTION

The distance control ECU sends brake control request signals, warning request signals, etc. to the master cylinder solenoid (skid control ECU) through the ECM. Based on these signals, the brake actuator operates and the warning buzzer sounds. The master cylinder solenoid (skid control ECU) sends brake system malfunction signals, etc. to the ECM.

DTC Code
DTC Detection Condition
Trouble Area
P1630
The vehicle speed is 50 km/h (30 mph) or more with the cruise control main switch on (vehicle-to-vehicle distance control mode) and the data sent from the master cylinder solenoid (skid control ECU) to the ECM is abnormal.
  1. Master cylinder solenoid (skid control ECU)
  2. CAN communication system
  3. ECM

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System. Dtc P1630 Communication Error From Vsc To Ecm


INSPECTION PROCEDURE

1.REPLACE MASTER CYLINDER SOLENOID (SKID CONTROL ECU)

  1. Replace the master cylinder solenoid (skid control ECU) with a new one (Click here for LHD, Click here for RHD).


NEXT


2.CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

  1. Using the intelligent tester, enter the following menus: Powertrain / Radar Cruise / Trouble Code.

  1. Clear the DTCs (Click here).

  1. Perform the following to make sure the DTC detection conditions are met.

    HINT:
    If the detection conditions are not met, the system cannot detect the malfunction.

    1. Drive the vehicle at a speed of 50 km/h (30 mph) or more.

    2. Turn the cruise control main switch on to set the vehicle-to-vehicle distance control mode to the standby state.

  1. Check for DTCs (Click here).

    OK:
    DTC P1630 is not output.
Result
Result
Proceed to
OK
A
NG (for 1UR-FE)
B
NG (for 3UR-FE)
C


B
REPLACE ECM (Click here)

C
REPLACE ECM (Click here)
A

END (MASTER CYLINDER SOLENOID [SKID CONTROL ECU] IS DEFECTIVE)