Headlight Beam Level Warning Circuit: Procedure
WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT HEADLIGHT BEAM LEVEL CONTROL ECU
- Measure the voltage according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard voltage
Tester Connection Condition Specified Condition A21-26 - Body ground Ignition switch on (IG) and headlight beam level warning indicator goes off 10 to 14 V A21-26 - Body ground Headlight beam level warning indicator comes on Below 1 V
NG → See step 2
OK → PROCEED TO PROBLEM SYMPTOMS TABLE NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- Measure the voltage according to the value(s) in the table below.
- CHECK HARNESS AND CONNECTOR (HEADLIGHT BEAM LEVEL WARNING INDICATOR LIGHT)
- Inspect the harness and connectors related to the headlight beam level warning indicator light, referring to the wiring diagram.
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → PROCEED TO PROBLEM SYMPTOMS TABLE NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE