Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000271JY
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 TMC Made): C14E914; Right Rear Wheel Speed Sensor Supply Voltage Circuit Short to Ground or Open; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

DTC

C14E914

Right Rear Wheel Speed Sensor Supply Voltage Circuit Short to Ground or Open

DESCRIPTION

Refer to DTC C051212

Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMC Made): C051212; Right Rear Wheel Speed Sensor Circuit Short to Battery

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C14E914

Right Rear Wheel Speed Sensor Supply Voltage Circuit Short to Ground or Open

An open or short in the speed sensor power supply circuit is detected for 0.12 seconds or more.

  • Rear speed sensor RH (rear axle hub and bearing assembly RH)
  • Wire harness or connector
  • Skid control sensor wire RH (No. 1 parking brake wire assembly)
  • Skid control ECU (brake actuator assembly)

WIRING DIAGRAM

Refer to DTC C051212.

Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMC Made): C051212; Right Rear Wheel Speed Sensor Circuit Short to Battery

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE CIRCUIT)

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

OK:

The connector is securely connected.

*a

Front view of skid control sensor wire RH (No. 1 parking brake wire assembly)

(to Rear Speed Sensor RH (Rear Axle Hub and Bearing Assembly RH))

(b) Disconnect the o2 rear speed sensor RH (rear axle hub and bearing assembly RH) connector.

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

OK:

No deformation or corrosion.

(d) Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

o2-2 (RR+) - o2-1 (RR-)

Ignition switch ON

11 to 14 V

OK

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

for Double Wishbone Type Suspension: Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV [09/2022 -        ]; AXLE AND DIFFERENTIAL: REAR AXLE HUB (for Double Wishbone Type Suspension 2WD with Electric Parking Brake): REMOVAL

for Torsion Beam Type Suspension: Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; AXLE AND DIFFERENTIAL: REAR AXLE HUB (for Torsion Beam Type Suspension): REMOVAL

NG

2.

CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE CIRCUIT)

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

OK:

The connector is securely connected.

*a

Front view of wire harness connector

(to Skid Control Sensor Wire RH (No. 1 Parking Brake Wire Assembly))

(b) Disconnect the oO2 skid control sensor wire RH (No. 1 parking brake wire assembly) connector.

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

OK:

No deformation or corrosion.

(d) Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

oO2-1 (RR+) - oO2-2 (RR-)

Ignition switch ON

11 to 14 V

OK

REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY

NG

3.

CHECK HARNESS AND CONNECTOR (NO. 1 PARKING BRAKE WIRE ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)

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

OK:

The connector is securely connected.

(b) Disconnect the A51 skid control ECU (brake actuator assembly) connector.

(c) Disconnect the oO2 skid control sensor wire RH (No. 1 parking brake wire assembly) connector.

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

OK:

No deformation or corrosion.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

oO2-1 (RR+) or A51-22 (RR+) - Body ground

Always

10 kΩ or higher

OK

REPLACE BRAKE ACTUATOR ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR