Dtc C120A Ecu Initial Setting Incomplete


DESCRIPTION

INSPECTION PROCEDURE

PERFORM CALIBRATION

CHECK DTC

CHECK TEST MODE DTC

DTC C120A ECU Initial Setting Incomplete


DESCRIPTION

The master cylinder solenoid (skid control ECU) records information on whether there is a kinetic dynamic suspension system or not.
w/ Downhill Assist Control or w/ Crawl Control:
When the master cylinder solenoid (skid control ECU) is replaced, the master cylinder solenoid (skid control ECU) must be informed that the vehicle is equipped with downhill assist control and/or crawl control.

DTC Code
DTC Detection Condition
Trouble Area
C120A
Either condition is met:
  1. The master cylinder solenoid is not informed that the vehicle is equipped with downhill assist control or crawl control and downhill assist control or crawl control operates.
  2. There is no information on whether there is a kinetic dynamic suspension system or not.
Calibration not performed

INSPECTION PROCEDURE

1.PERFORM CALIBRATION

  1. Perform calibration (LandCruiser RM00000452J00ZX.html).

    NOTICE:
    If a DTC is output after replacing the master cylinder solenoid, it is possible that calibration has not been performed or the zero point calibration data was not cleared when calibration was performed.

NEXT


2.CHECK DTC

  1. Check for DTCs (LandCruiser RM0000046KV016X.html).

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



B
END
A


3.CHECK TEST MODE DTC

  1. Switch the vehicle to test mode, perform the downhill assist control switch or crawl switch signal check, and then check that Test Mode (Signal Check) DTC C1379 is cleared (LandCruiser RM00000452K011X.html).

    Result
    Result
    		Proceed to
    Test Mode DTC C1379 is not cleared
    		A
    Test Mode DTC C1379 is cleared
    		B



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

GO TO DTC C1379 (LandCruiser RM00000452G01FX.html)