Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Steering Angle Sensor (C1297)

DESCRIPTION

The 4WD ECU assembly receives signals from the steering sensor, and thereby detects the steering angle of the steering wheel assembly to determine when the vehicle is turning.

When an abnormal signal is received from the steering sensor, the 4WD ECU assembly stores DTC C1297.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1297

Steering Angle Sensor

When the ignition switch is ON (IG1 terminal voltage is 9.5 V or more), an abnormal signal is received from the steering sensor.

  • Steering sensor
  • CAN communication system
  • 4WD ECU assembly
  • Wire harness or connector

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTC.

Chassis > Four Wheel Drive > Clear DTCs

(b) Turn the ignition switch off.

(c) Turn the ignition switch to ON again and check that no CAN communication system DTC(s) is output.

Click here

(d) Start the engine.

(e) Drive the vehicle at a speed of 35 km/h (22 mph), turn the steering wheel to the right and left and check that no electronically controlled brake system (steering sensor) DTC is output.

Chassis > Brake/EPB > Trouble Codes

Result

Proceed to

Neither CAN communication system DTC nor electronically controlled brake system DTC is output

A

CAN communication system DTC is output

B

Electronically controlled brake system (steering sensor) DTC is output

C

HINT:

When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.

B

GO TO CAN COMMUNICATION SYSTEM

C

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

A

2.

CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)

(a) Disconnect the steering sensor connector.

*a

Front view of wire harness connector

(to Steering Sensor)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

I229-4 (BAT) - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

CHECK TERMINAL VOLTAGE (IG TERMINAL)

(a) Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

I229-9 (IGR) - Body ground

Ignition switch ON

10.5 to 16 V

*a

Front view of wire harness connector

(to Steering Sensor)

NG

INSPECT STOP AND START SYSTEM

OK

4.

CHECK HARNESS AND CONNECTOR (ESS TERMINAL)

(a) Turn the ignition switch off.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

I229-6 (ESS) - Body ground

Always

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

READ VALUE USING GTS (STEERING ANGLE VALUE)

(a) Read the value displayed on the GTS.

Chassis > Four Wheel Drive > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Steering Angle Value

Steering angle value

Min.: -3276.8°

Max.: 3276.7°

Left turn: Increase

Right turn: Decrease

Changes in proportion with the amount of steering wheel rotation during steering operation.

Chassis > Four Wheel Drive > Data List

Tester Display

Steering Angle Value

OK:

The steering sensor value changes in accordance with the steering wheel movement.

OK

REPLACE 4WD ECU ASSEMBLY

NG

REPLACE STEERING SENSOR

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