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Home >> Toyota >> 2014 >> Highlander LE Plus, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Automatic High Beam System (Exterior) - Diagnostics - Introduction - (Except Hybrid) >> Automatic High Beam System >> Problem Symptoms Table [12/2013 - 11/2016] >> Problem Symptoms Table [12/2013 - 11/2016]

Problem Symptoms Table [12/2013 - 11/2016]

NOTE:

If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.*

Refer to REGISTRATION [12/2013 - 11/2016]

  • *: w/ Smart Key System

HINT: 

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

AUTOMATIC HIGH BEAM SYSTEM

Symptom Suspected Area Link
Automatic high beam indicator on the combination meter assembly does not illuminate. Check operating conditions Refer to OPERATION CHECK [12/2013 - 11/2016] 
Combination meter assembly Refer to REMOVAL [12/2013 - ]
Lane departure warning camera Refer to REMOVAL [12/2013 - 11/2016]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [12/2013 - ]
Automatic high beam system does not operate. Check Data List (Auto H Beam STS) Refer to DATA LIST / ACTIVE TEST [12/2013 - 11/2016] 
Automatic high beam switch circuit Refer to Automatic High Beam Switch Circuit [12/2013 - 11/2016]
Low beam headlight circuit Refer to Low Beam Headlight Circuit [12/2013 - 11/2016]
High beam headlight circuit Refer to High Beam Headlight Circuit [12/2013 - 11/2016]
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [12/2013 - ]
Check automatic light control system operation Refer to OPERATION CHECK [12/2013 - ]
Lane departure warning camera power source circuit Refer to Power Source Circuit [12/2013 - 11/2016]
Lane departure warning camera Refer to REMOVAL [12/2013 - 11/2016]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [12/2013 - ]

HINT: