Dtc C1783/83 Front Wheels Speed Sensor Signal Malfunction


DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC (AIR SUSPENSION SYSTEM)

CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)

DTC C1783/83 Front Wheels Speed Sensor Signal Malfunction


DESCRIPTION

The suspension control ECU receives wheel speed sensor signals through CAN communication system from the skid control ECU.

DTC Code
DTC Detection Condition
Trouble Area
C1783/83
A speed sensor malfunction signal from the skid control ECU is detected for 1 second.
  1. Brake control system
  2. Suspension control ECU

INSPECTION PROCEDURE

1.CHECK FOR DTC (AIR SUSPENSION SYSTEM)

  1. Clear the DTCs (LandCruiser RM000001G7P02NX.html).

  1. Perform a road test.

  1. Check if DTC U0122/71 is output (LandCruiser RM000001G7P02NX.html).

    Result
    Result
    		Proceed to
    DTC is not output or only DTC 1783/83 is output
    		A
    DTCs 1783/83 and U0122/71 are output
    		B



B
GO TO DTC U0122/71 (LandCruiser RM000001N9E018X.html)
A


2.CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)

  1. Check if DTC C1783/83 and a brake control system speed sensor malfunction DTC are output (LandCruiser RM0000046KV016X.html).

    Result
    Result
    		Proceed to
    DTCs are not output
    		A
    DTCs are output
    		B



B
GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (LandCruiser RM0000045Z601DX.html)
A

REPLACE SUSPENSION CONTROL ECU (LandCruiser RM000002BGR01UX.html)