Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM1000000028D86
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 - 08/2023]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): C14FE14; Steering Angle Sensor Supply Voltage Circuit Circuit Short to Ground or Open; 2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 08/2023]

DTC

C14FE14

Steering Angle Sensor Supply Voltage Circuit Circuit Short to Ground or Open

DESCRIPTION

This DTC is stored when the skid control ECU (brake actuator assembly) receives a +B line open signal from the steering angle sensor.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C14FE14

Steering Angle Sensor Supply Voltage Circuit Circuit Short to Ground or Open

With the +BS terminal voltage between 9.6 and 16.5 V, a steering angle sensor power supply circuit malfunction signal is received from the steering angle sensor.
  • Wire harness or connector
  • Steering angle sensor

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CLEAR DTC

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

(c) Operate the GTS to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

Chassis > Brake > Clear DTCs

(d) Press the DTC clear button.

NEXT

2.

RECONFIRM DTC

(a) Connect the GTS to the DLC3.

(b) Start the engine.

(c) Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.

(d) Read the DTCs following the prompts on the GTS. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

Chassis > Brake > Trouble Codes

(e) Check if the same DTC is output.

Result

Proceed to

C14FE14 is not output

A

C14FE14 is output

B
A

USE SIMULATION METHOD TO CHECK

B

3.

CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)

(a) Remove the steering wheel and column cover.

*a

Front view of wire harness connector

(to Steering Angle Sensor)

(b) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

(c) Disconnect the I211 steering angle sensor connector.

(d) Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

I211-4 (BAT) - Body ground

Always

11 to 14 V
OK

REPLACE STEERING ANGLE SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR