Symptom Chart

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Beam level control does not function

Step	Check	Yes	No
1 CHECK INDICATOR OUTPUT. Turn the ignition switch to ON.	Does the warning indicator turn on for three seconds?	Go to step 2 .	Go to step 5 .
2 CHECK INDICATOR OUTPUT. Leave the ignition switch to ON for 10 seconds.	Does the warning indicator light go off?	Go to step 10 .	Go to step 3 .
3 CHECK OUTPUT VOLTAGE BETWEEN AUTO HEADLIGHT BEAM LEVELER CONTROL MODULE AND VEHICLE HEIGHT SENSOR. Disconnect the vehicle height sensor connector. Turn the ignition switch to ON. Measure the voltage between the vehicle height sensor connector and chassis ground. Connector & terminal (R29) No. 3 (+) - Chassis ground (-):	Is the voltage 5 V±0.25 V?	Go to step 8 .	Go to step 4 .
4 CHECK HARNESS BETWEEN AUTO HEADLIGHT BEAM LEVELER CONTROL MODULE AND VEHICLE HEIGHT SENSOR. Turn the ignition switch to OFF. Disconnect the auto headlight beam leveler control module connector. Measure the continuity between the auto headlight beam leveler control module connector and the vehicle height sensor connector. Connector & terminal (B150) No. 21 - (R29) No. 1: (B150) No. 19 - (R29) No. 2: (B150) No. 12 - (R29) No. 3:	Is there continuity?	Replace the auto headlight beam leveler control module.	Repair the open circuit and poor contact of the connector in the harness between the auto headlight beam leveler control module and vehicle height sensor.
5 CHECK HARNESS BETWEEN BATTERY - INDICATOR BULB - AUTO HEADLIGHT BEAM LEVELER CONTROL MODULE. Disconnect the auto headlight beam leveler control module connector. Turn the ignition switch to ON. Measure the voltage between auto headlight beam leveler control module and chassis ground. Connector & terminal (B150) No. 6 (+) - Chassis ground (-):	Is the voltage 12 V?	Replace the auto headlight beam leveler control module.	Go to step 6 .
6 CHECK INDICATOR BULB. Turn the ignition switch to OFF. Disconnect the combination meter connector. Measure the continuity between combination meter body terminals. Connector & terminal (i10) No. 2 - (i10) No. 7:	Is there continuity?	Go to step 7 .	Replace the meter case assembly.
7 CHECK HARNESS BETWEEN AUTO HEADLIGHT BEAM LEVELER CONTROL MODULE AND INDICATOR BULB. Turn the ignition switch to OFF. Disconnect the auto headlight beam leveler control module connector. Disconnect the combination meter connector. Measure the continuity between the auto headlight beam leveler control module connector and the combination meter connector. Connector & terminal (B150) No. 6 - (i10) No. 7:	Is there continuity?	Replace the auto headlight beam leveler control module.	Repair the open circuit and poor contact of the connector in the harness between the auto headlight beam leveler control module and indicator.
8 CHECK VEHICLE HEIGHT SENSOR OUTPUT SIGNAL. Connect three dry cell batteries (1.5 V) in series. Connect the (+) side of the battery to the No. 3 terminal of the sensor body, and the (-) side of the battery to terminal No. 1, and apply a voltage of 4.5 V between terminals No. 3 - No. 1. With voltage applied, use a tester to measure the voltage between the No. 2 - No. 1 terminals when the sensor body link is moved slowly up and down. Connector & terminal Sensor body No. 2 (+) - No. 1 (-):	Is the voltage 0.5 - 4.1 V?	Go to step 9 .	Replace the vehicle height sensor.
9 CHECK HARNESS BETWEEN AUTO HEADLIGHT BEAM LEVELER CONTROL MODULE AND VEHICLE HEIGHT SENSOR. Turn the ignition switch to OFF. Disconnect the auto headlight beam leveler control module connector. Measure the continuity between the auto headlight beam leveler control module connector and the vehicle height sensor connector. Connector & terminal (B150) No. 21 - (R29) No. 1: (B150) No. 19 - (R29) No. 2: (B150) No. 12 - (R29) No. 3:	Is there continuity?	Replace the auto headlight beam leveler control module.	Repair the open circuit and poor contact of the connector in the harness between the auto headlight beam leveler control module and vehicle height sensor.
10 CHECK HEADLIGHT ON SIGNAL. Disconnect the auto headlight beam leveler control module connector. Turn the ignition switch to ON. Turn the headlight switch to ON. Measure the voltage between auto headlight beam leveler control module connector and chassis ground. Connector & terminal (B150) No. 3 (+) - Chassis ground (-):	Is the voltage 12 V?	Go to step 11 .	Repair the open circuit and poor contact of the connector in the harness between the auto headlight relay and headlight leveler control module.
11 CHECK HEADLIGHT ASSEMBLY (LEVELER ACTUATOR) DRIVE. Set the vehicle in a parked state. Turn the ignition switch to ON, and within 10 seconds, repeat the OFF → ON operation of headlight switch 5 times. Check that the headlight beam drops once, then returns to normal. Then, after waiting for 30 seconds or more with the ignition ON, turn the ignition switch to OFF.	Does the headlight beam drop down once, and then return?	Replace the auto headlight beam leveler control module.	Go to step 12 .
12 CHECK OUTPUT VOLTAGE BETWEEN AUTO HEADLIGHT BEAM LEVELER CONTROL MODULE AND HEADLIGHT ASSEMBLY (LEVELER ACTUATOR). Disconnect the headlight assembly (leveler actuator) connector. Turn the ignition switch to ON. Measure the voltage between auto headlight beam leveler control module connector and chassis ground. Connector & terminal (B150) No. 10 (+) - Chassis ground (-):	Is the voltage 12 V?	Replace the headlight assembly.	Go to step 13 .
13 CHECK HARNESS BETWEEN AUTO HEADLIGHT BEAM LEVELER CONTROL MODULE AND HEADLIGHT ASSEMBLY (LEVELER ACTUATOR). Measure the continuity between the auto headlight beam leveler control module connector and headlight assembly (leveler actuator) connector. Connector & terminal Headlight beam leveler RH (B150) No. 10 - (F59) No. 3: (B150) No. 17 - (F59) No. 2: (B150) No. 23 - (F59) No. 1: Headlight beam leveler LH (B150) No. 10 - (F58) No. 3: (B150) No. 17 - (F58) No. 2: (B150) No. 23 - (F58) No. 1:	Is there continuity?	Replace the auto headlight beam leveler control module.	Repair the open circuit and poor contact of the connector in the harness between the auto headlight assembly and headlight leveler control module.