DTC C200B:02, C200B:49, C200B:62, C200B:85

Torque sensor

DETECTION CONDITION

• C200B:02

• EPS CM detects torque sensor supply voltage malfunction

• C200B:49

• Open or short circuit is detected in torque sensor circuit

• C200B:62

• Difference occurs between signals 1 and 2 from torque sensor

• C200B:85

• Signal error detected in torque sensor signal

FAIL-SAFE FUNCTION

• Control disabled

• Power steering malfunction indicator light: Illuminated

POSSIBLE CAUSE

• Open or short circuit in wiring harness between the EPS CM terminals and torque sensor.

• Poor connection at connectors

• Torque sensor malfunction

• EPS CM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

Step

Inspection

Action

1

• Switch the ignition OFF.

• Disconnect the torque sensor connector.

• Are the connector connection, connector pins, and wiring harness normal?

Yes

Go to the next step.

No

Repair or replace the connector or wiring harness, then go to the Step 3.

1

• Connect the M-MDS to the DLC-2.

• Switch the ignition ON (engine off).

• Access “STR_TRQ_S_M” and ”STR_TRQ_S_S” PIDs.

  (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

• Verify that the data monitor value changes when the steering wheel is turned.

• Left: 0—positive

• Right: 0— negative

• Do the torque sensor signal values change in the same way?

Yes

Go to the next step.

No

Replace the steering column (torque sensor), then go to the next step.

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

3

• Clear the DTC from the memory.

  (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

• Is the same DTC present?

  (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

Yes

Repeat the inspection from Step 1.

If the malfunction recurs, replace the EPS CM, then go to the next step.

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

No

Go to the next step.

3

• Are any other DTCs output?

  (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

Yes

Go to the applicable DTC inspection.

(See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

No

DTC troubleshooting completed.