LIGHTING SYSTEM > Headlight System
INSPECTION
1. AUTO HEADLIGHT SYSTEM CHECK
STEP | CHECK | YES | NO |
1.CHECK HEADLIGHT ILLUMINATION.
Set the lighting switch to the switch 1 (TAIL/PARKING) and switch 2 (HEAD).
Do the tail and headlight illuminate?
Headlight System > INSPECTION">Go to Step 2.
Check the combination switch (light) and headlight bulb.
2.CHECK CURRENT DATA.
Using the Subaru Select Monitor, display the data of «Lighting AUTO input».
NOTE:
For detailed operation procedures, refer to “Application help”.
Does the display switch between OFF ←> ON when the lighting switch is moved to AUTO position?
Headlight System > INSPECTION">Go to Step 3.
Headlight System > INSPECTION">Go to Step 8.
3.CHECK CURRENT DATA.
1) Using the Subaru Select Monitor, display the data of «Illumination Sensor Output».
2) Measure the voltage when the area around the light control sensor, which was dark, becomes bright.
Illumination sensor output
Dark condition: Approx. 0.6 V or less
Bright condition: Approx. 3.0 V or more
Is the voltage output according to the brightness?
Check and replace the body integrated unit.
• Inspection: Basic Diagnostic Procedure">
• Replacement: Body Integrated Unit">
Headlight System > INSPECTION">Go to Step 4.
4.CHECK HARNESS.
1) Disconnect the connectors from body integrated unit and light control sensor.
2) Check the harness between body integrated unit and light control sensor.
Connector & terminal
(B280) No. 19 — (i226) No. 2:
(B280) No. 29 — (i226) No. 1:
(B281) No. 1 — (i226) No. 3:
Is harness normal?
Headlight System > INSPECTION">Go to Step 5.
Repair or replace the harness.
5.CHECK HARNESS.
1) Connect the connector of body integrated unit.
2) Turn the ignition switch to ON.
3) Measure the voltage between light control sensor connector and chassis ground.
Connector & terminal
(i226) No. 3 (+) — Chassis ground (−):
Is the voltage 4.5 — 5.5 V?
Headlight System > INSPECTION">Go to Step 6.
Replace the body integrated unit. Body Integrated Unit">
6.CHECK BODY INTEGRATED UNIT.
Measure the resistance between the body integrated unit and chassis ground.
Connector & terminal
(B280) No. 29 — Chassis ground:
Is the resistance less than 10 ??
Headlight System > INSPECTION">Go to Step 7.
Replace the body integrated unit. Body Integrated Unit">
7.CHECK LIGHT CONTROL SENSOR.
1) Connect the light control sensor connector.
2) Check the light control sensor. Light Control Sensor > INSPECTION">
Is the light control sensor normal?
Headlight System > INSPECTION">Go to Step 8.
Replace the light control sensor.
8.CHECK COMBINATION SWITCH (LIGHT).
Check the combination switch (light). Combination Switch (Light) > INSPECTION">
Is the combination switch (light) normal?
Headlight System > INSPECTION">Go to Step 9.
Replace the combination switch (light).
9.CHECK HARNESS.
1) Disconnect the connectors of body integrated unit and combination switch (light).
2) Check the harness between body integrated unit and combination switch (light).
Connector & terminal
(B71) No. 19 — (B281) No. 16:
Is harness normal?
Check and replace the body integrated unit.
• Inspection: Basic Diagnostic Procedure">
• Replacement: Body Integrated Unit">
Repair or replace the harness.
2. CHECK OF WELCOME LIGHTING SYSTEM
TROUBLE SYMPTOM:
Welcome lighting does not illuminate.
STEP | CHECK | YES | NO |
1.CHECK BODY INTEGRATED UNIT SETTING.
Display the data of «Welcome Light Off Delay Time(Approaching)» or «Welcome Light Off Delay Time(Exiting)» using the Subaru Select Monitor.
NOTE:
For detailed operation procedures, refer to “Application help”.
Is the setting ON?
Headlight System > INSPECTION">Go to Step 2.
Turn the setting to ON.
2.CHECK BODY INTEGRATED UNIT SETTING.
Display the data of «Illumination Sensor Setting» using Subaru Select Monitor.
Is the setting “ON”?
Headlight System > INSPECTION">Go to Step 3.
Turn the setting to “ON”.
3.CHECK AUTO HEADLIGHT.
1) Set the lighting switch to AUTO position.
2) Make the light control sensor vicinity dark.
3) Turn the ignition switch to ON.
Do the parking light, tail and headlight illuminate?
Headlight System > INSPECTION">Go to Step 4.
Check the auto headlight system. Headlight System > INSPECTION">
4.CHECK DOOR LOCK.
Operate the door lock using the keyless transmitter or the access key.
Do the lock and unlock operate properly?
Headlight System > INSPECTION">Go to Step 5.
• Check keyless entry system. Keyless Entry System > INSPECTION">
• Check the keyless access with push button start system. Basic Diagnostic Procedure">
5.CHECK BODY INTEGRATED UNIT.
1) Display the data of «IG power supply voltage» using Subaru Select Monitor.
2) Turn the ignition switch to ON.
Is the voltage 10 — 15 V?
Replace the body integrated unit. Body Integrated Unit">
Repair or replace the harness.
3. CHECK OF WELCOME LIGHTING SYSTEM
Trouble symptom:
Welcome lighting does not go off.
STEP | CHECK | YES | NO |
1.CHECK BODY INTEGRATED UNIT SETTING.
Display the data of «Welcome Light Off Delay Time(Approaching)» or «Welcome Light Off Delay Time(Exiting)» using the Subaru Select Monitor.
NOTE:
For detailed operation procedures, refer to “Application help”.
Is the illumination time setting correct?
Headlight System > INSPECTION">Go to Step 2.
Set the illumination time.
2.CHECK THE LIGHTS.
Set the lighting switch to the switch 1 (TAIL/PARKING) and switch 2 (HEAD).
Do the parking light, tail light and headlight illuminate?
Headlight System > INSPECTION">Go to Step 3.
Check the combination switch (light) and each light circuit.
3.CHECK BODY INTEGRATED UNIT.
Using the Subaru Select Monitor, display the data of «Driver’s door SW input».
Does the display switch between OFF ←> ON when driver’s door is opened/closed?
Headlight System > INSPECTION">Go to Step 4.
Check the door switch. Keyless Entry System > INSPECTION">
4.CHECK DOOR LOCK.
Operate the door lock using the keyless transmitter or the access key.
Do the lock and unlock operate properly?
Replace the body integrated unit. Body Integrated Unit">
• Check keyless entry system. Keyless Entry System > INSPECTION">
• Check the keyless access with push button start system. Basic Diagnostic Procedure">
4. CHECK LIGHTING SWITCH
Refer to the “INSPECTION” of the “Combination Switch (Light)”. Combination Switch (Light) > INSPECTION">
5. CHECK DIMMER & PASSING SWITCH
Refer to the “INSPECTION” of the “Combination Switch (Light)”. Combination Switch (Light) > INSPECTION">
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