Description

Steering angle sensor assembly malfunction

Detection condition

• Start stop unit receives the following signals with the ignition switched ON (engine off or on).

• Steering angle sensor assembly malfunction from EPS control module for 1 s or more

• Improper assembly of steering angle sensor at 360°

• Steering wheel angle of 720° or more for 0.048 s or more

Fail-safe function

Not applicable

Possible cause

• DTCs are stored in the EPS control module.

• Improper assembly of steering angle sensor

• Start stop unit malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

• Retrieve the EPS control module DTCs using the M-MDS.

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

• Are any DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

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

No

Go to the next step.

2

• Verify the steering angle sensor installation condition.

  (See CLOCK SPRING INSPECTION [STANDARD DEPLOYMENT CONTROL SYSTEM].)

  (See CLOCK SPRING INSPECTION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

• Is the steering angle sensor installed correctly?

Yes

Go to the next step.

No

Install the steering angle sensor correctly, then go to the next step.

(See CLOCK SPRING REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM].)

(See CLOCK SPRING REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

3

• Clear the DTC for the start stop unit using the M-MDS.

  (See CLEARING DTC [START STOP UNIT].)

• Switch the ignition ON (engine off or on) and wait for 1 s or more.

• Retrieve the start stop unit DTCs using the M-MDS.

  (See DTC INSPECTION [START STOP UNIT].)

• Is the same DTC displayed?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the start stop unit.

  (See START STOP UNIT REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

4

• Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [START STOP UNIT].)

No

DTC troubleshooting completed.