Dtc C1417 High Power Supply Voltage Malfunction


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK TERMINAL VOLTAGE (IG1)

RECONFIRM DTC

DTC C1417 High Power Supply Voltage Malfunction


DESCRIPTION

If a malfunction is detected in the power supply circuit, the skid control ECU (housed in the master cylinder solenoid) stores this DTC and the fail-safe function prohibits ABS/VSC/TRC operation.
This DTC is stored when the IG1 terminal voltage deviates from the DTC detection condition due to a malfunction in the power supply or charging circuit such as the battery or generator circuit, etc.
This DTC is cleared when the IG1 terminal voltage returns to normal.

DTC Code
DTC Detection Condition
Trouble Area
C1417
The IG1 terminal voltage is 17.4 V or higher for 0.8 seconds or more.
  1. Charging system
  2. Power source circuit
  3. Internal power supply circuit of the skid control ECU

WIRING DIAGRAM

Refer to DTC C1241 (LandCruiser RM000001DXW034X_02.html).

INSPECTION PROCEDURE

NOTICE:
When replacing the master cylinder solenoid, perform calibration (LandCruiser RM00000452J00ZX.html).
1.CHECK TERMINAL VOLTAGE (IG1)
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  1. Disconnect the A7 skid control ECU connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A7-46 (IG1) - Body ground
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU)
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for 1GR-FE)
    		B
    NG (for 1KD-FTV)
    		C
    NG (for 1GD-FTV)
    		D


B
GO TO CHARGING SYSTEM (ON-VEHICLE INSPECTION) (LandCruiser RM000001AR90C2X.html)

C
GO TO CHARGING SYSTEM (ON-VEHICLE INSPECTION) (LandCruiser RM0000013Y001ZX.html)

D
GO TO CHARGING SYSTEM (ON-VEHICLE INSPECTION) (LandCruiser RM000001AR90CCX.html)
A


2.RECONFIRM DTC

  1. Clear the DTC (LandCruiser RM0000046KV016X.html).

  1. Check if the same DTC is output (LandCruiser RM0000046KV016X.html).

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output (for LHD)
    		B
    DTC is output (for RHD)
    		C


B
REPLACE MASTER CYLINDER SOLENOID (LandCruiser RM00000171U02DX.html)

C
REPLACE MASTER CYLINDER SOLENOID (LandCruiser RM00000171U02EX.html)
A

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)