BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMMMS Made): C14FE14; Steering Angle Sensor Supply Voltage Circuit Circuit Short to Ground or Open; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM10000000265QG
Model Year Start: 2023	Model: GR Corolla	Prod Date Range: [09/2022 - 11/2022]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMMMS Made): C14FE14; Steering Angle Sensor Supply Voltage Circuit Circuit Short to Ground or Open; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

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

NOTICE:

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

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Press the DTC clear button.

2.	RECONFIRM DTC

(a) Connect the Techstream 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 Techstream. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

(e) Check if the same DTC is output.

Result	Proceed to
DTC C14FE14 is not output.	A
DTC C14FE14 is output.	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.

(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
I46-4 (BAT) - Body ground	Always	11 to 14 V

REPAIR OR REPLACE HARNESS OR CONNECTOR