Description

Error steering angle signal received from EPS control module

Detection condition

• Either a condition in which the steering angle sensor has a malfunction and the EPS control module has not performed steering angle neutral position auto learning, or a condition in which the EPS control module has a malfunction is detected for 5 s or more.

Fail-safe function

• The swivel actuator is moved to the center.

• Control of the headlight auto leveling system is continued.

Possible cause

• DTCs are stored in the start stop unit.

• DTCs are stored in the EPS control module.

• EPS control module malfunction

• AFS control module malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

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

  (See DTC INSPECTION [START STOP UNIT].)

• Are any DTCs displayed?

Yes

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

(See DTC TABLE [START STOP UNIT].)

No

Go to the next step.

2

• 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.

3

• Clear the DTC for the AFS control module using the M-MDS.

  (See CLEARING DTC [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].)

• Switch the ignition ON (engine off or on) and wait for 5 s or more.

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

  (See DTC INSPECTION [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].)

• Is the same DTC displayed?

Yes

Replace the EPS control module, then go to the next step.

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

No

Go to Step 5.

4

• Clear the DTC for the AFS control module using the M-MDS.

  (See CLEARING DTC [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].)

• Switch the ignition ON (engine off or on) and wait for 5 s or more.

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

  (See DTC INSPECTION [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].)

• Is the same DTC displayed?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the AFS control module.

  (See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

5

• Are any other DTCs displayed?

Yes

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

(See DTC TABLE [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].)

No

DTC troubleshooting completed.