Dtc C15C1/74 Steering Angle Sensor Malfunction

Steering. Land Cruiser. Urj200, 202 Grj200 Vdj200
Variable Gear Ratio Steering. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC (CAN COMMUNICATION SYSTEM)

CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU +BI TERMINAL VOLTAGE)

CHECK STEERING CONTROL ECU (+BO TERMINAL VOLTAGE)

CHECK HARNESS AND CONNECTOR (STEERING ANGLE SENSOR)

CHECK STEERING ANGLE SENSOR

DTC C15C1/74 Steering Angle Sensor Malfunction

DTC C15C2/74 Steering Angle Sensor B+ Malfunction


DESCRIPTION

The steering control ECU detects a steering angle sensor malfunction by receiving an error signal from the steering angle sensor via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store these DTCs, and stop VGRS operation.

DTC Code
DTC Detection Condition
 Trouble Area
C15C1/74
The steering control ECU receives a steering angle sensor malfunction signal via CAN communication.
  1. Steering angle sensor
  2. Harness or connector
  3. CAN communication system
  4. Steering control ECU
C15C2/74
The steering control ECU receives a B+ open circuit signal from the steering angle sensor via CAN communication.
  1. Steering angle sensor
  2. Harness or connector
  3. CAN communication system
  4. Steering control ECU

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Variable Gear Ratio Steering.Variable Gear Ratio Steering System. Dtc C15C1/74 Steering Angle Sensor Malfunction


INSPECTION PROCEDURE

1.CHECK DTC (CAN COMMUNICATION SYSTEM)

  1. Using the intelligent tester, check if the CAN communication system is functioning normally (Click here for LHD, Click here for RHD).

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


B
GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here)

C
GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (Click here)
A


2.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU +BI TERMINAL VOLTAGE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Variable Gear Ratio Steering.Variable Gear Ratio Steering System. Dtc C15C1/74 Steering Angle Sensor Malfunction

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E77-10 (+BI) - Body ground
    		Always
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK STEERING CONTROL ECU (+BO TERMINAL VOLTAGE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Variable Gear Ratio Steering.Variable Gear Ratio Steering System. Dtc C15C1/74 Steering Angle Sensor Malfunction

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E79-1 (+BO) - Body ground
    		Always
    		11 to 14 V
    Result
    Result
    Result    		Proceed to
    OK
    		A
    NG (for LHD)
    		B
    NG (for RHD)
    		C


B
REPLACE STEERING CONTROL ECU (Click here)

C
REPLACE STEERING CONTROL ECU (Click here)
A


4.CHECK HARNESS AND CONNECTOR (STEERING ANGLE SENSOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Variable Gear Ratio Steering.Variable Gear Ratio Steering System. Dtc C15C1/74 Steering Angle Sensor Malfunction

  1. Disconnect the E11 steering angle sensor connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E11-1 (IG) - Body ground
    		Engine switch on (IG)
    		11 to 14 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E11-2 (ESS) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK STEERING ANGLE SENSOR


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Variable Gear Ratio Steering.Variable Gear Ratio Steering System. Dtc C15C1/74 Steering Angle Sensor Malfunction

  1. Disconnect the E11 steering angle sensor connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E11-3 (BAT) - E11-2 (ESS)
    		Engine switch on (IG)
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE STEERING ANGLE SENSOR (Click here)