Description

Auto light sensor/rain sensor internal malfunction

Detection condition

• The BCM received auto light sensor/rain sensor error signals from the auto light sensor/rain sensor 10 times continuously with the ignition switched ON (engine off or on).

Fail-safe

Auto light system

• Continue the controls prior to the auto light malfunction detection.

Auto wiper system

• Continue the controls prior to the wiper malfunction detection.

Possible cause

• Auto light sensor/rain sensor malfunction

• BCM malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

• Clear the DTC for the BCM using the M-MDS.

  (See CLEARING DTC [BCM].)

• Operate the light switch to the AUTO position.

• Operate the wiper and washer switch to the AUTO position.

• Retrieve the BCM DTCs using the M-MDS.

  (See DTC INSPECTION [BCM].)

• Is the same DTC displayed?

Yes

Replace the auto light sensor/rain sensor, then go to the next step.

(See RAIN SENSOR REMOVAL/INSTALLATION.)

No

Go to Step 3.

2

• Clear the DTC for the BCM using the M-MDS.

  (See CLEARING DTC [BCM].)

• Operate the light switch to the AUTO position.

• Operate the wiper and washer switch to the AUTO position.

• Retrieve the BCM DTCs using the M-MDS.

  (See DTC INSPECTION [BCM].)

• Is the same DTC displayed?

Yes

Replace the BCM, then go to the next step.

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

No

Go to the next step.

3

• Are any other DTCs displayed?

Yes

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

(See DTC TABLE [BCM].)

No

DTC troubleshooting completed.