DTC C200B:1C/C200C:1C

id060200814800

DTC C200B:1C, C200C:1C

Torque sensor

DETECTION CONDITION

•  Open or short circuit is detected in torque sensor circuit

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

—

Diagnostic Procedure

Step

Inspection

Action

1

INSPECT TORQUE SENSOR USING M-MDS

•  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

Malfunction may be temporary. Go to step 3.

No

Go to the next step.

2

INSPECT TORQUE SENSOR CONNECTOR AND TORQUE SENSOR WIRING HARNESS

•  Switch the ignition OFF.

•  Disconnect the torque sensor connector.

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

Yes

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

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

No

Repair or replace the connector or wiring harness, then go to the next step.

3

VERIFY THAT SAME DTC IS NOT PRESENT

•  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.

4

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  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.

DTC C200B:1C, C200C:1C	Torque sensor
DETECTION CONDITION	• Open or short circuit is detected in torque sensor circuit
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	—

Step	Inspection		Action
1	INSPECT TORQUE SENSOR USING M-MDS • 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	Malfunction may be temporary. Go to step 3.
1		No	Go to the next step.
2	INSPECT TORQUE SENSOR CONNECTOR AND TORQUE SENSOR WIRING HARNESS • Switch the ignition OFF. • Disconnect the torque sensor connector. • Are the connector connection, connector pins, and wiring harness normal?	Yes	Replace the steering column (torque sensor), then go to the next step. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
2		No	Repair or replace the connector or wiring harness, then go to the next step.
3	VERIFY THAT SAME DTC IS NOT PRESENT • 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.)
3		No	Go to the next step.
4	VERIFY THAT NO OTHER DTCs ARE PRESENT • 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.)
4		No	DTC troubleshooting completed.