Toyota CH-R Service Manual: Problem Symptoms Table

Toyota CH-R Service Manual / Lighting (ext) / Automatic Headlight Beam Level Control System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

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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 Headlight Beam Level Control System

Symptom	Suspected Area	Link
Automatic headlight beam level control system does not operate (Left Headlight)	Headlight Unit Assembly LH*1
	Headlight Unit Assembly LH*2
	Headlight ECU sub-assembly LH
Automatic headlight beam level control system does not operate (Right Headlight)	Headlight Unit Assembly RH*1
	Headlight Unit Assembly RH*2
	Headlight ECU sub-assembly RH
Initialization cannot be performed	CAN communication system
Initialization cannot be performed	Headlight ECU sub-assembly LH

*1: for Halogen Headlight
*2: for LED Headlight

Initialization

INITIALIZATION NOTICE: The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced du ...

Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) Automatic headlight beam level control system data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the ...

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