Dtc C1781/81 Suspension Control Ecu Malfunction


DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC

DTC C1781/81 Suspension Control ECU Malfunction


DESCRIPTION

If a malfunction in the suspension control ECU is detected, DTC C1781/81 is stored.

DTC Code
DTC Detection Condition
Trouble Area
C1781/81
One of the following conditions is met:
  1. A nonvolatile memory malfunction
  2. A CAN communication resistor malfunction
  3. A main relay lock-up malfunction
Suspension control ECU

INSPECTION PROCEDURE

NOTICE:
When replacing the suspension control ECU, perform registration (LandCruiser RM000003X4500TX.html).
HINT:
If DTC C1782/82 is output at the same time as C1781/81, perform the inspection necessary for DTC C1782/82 first (LandCruiser RM000001N9301JX.html).
1.CHECK FOR DTC

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

  1. Perform a road test.

  1. Check for DTC (LandCruiser RM000001G7P02NX.html).

    Result
    Result
    		Proceed to
    DTC is output
    		A
    DTC is not output
    		B



B
USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)
A

REPLACE SUSPENSION CONTROL ECU (LandCruiser RM000002BGR01UX.html)