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DISCHARGE HEADLIGHT CONTROL MODULE CONSTRUCTION/OPERATION

id091800103300
• Built into the headlight and installed on the headlight lower side.
• Switches the direct current from the battery to alternating current and optimally controls the current supply output to the bulb.

1 | Discharge headlight control module

## Failure Detection Function

### Abnormal input detection function

  • If the discharge headlight control module input voltage (9-16 V) fails to maintain operational voltage (except for the drop in voltage immediately after the headlights are turned on), the discharge headlight control module turns off the headlights for protection or to prevent part operation errors.
  • The discharge headlight control module turns the headlights back on at resumption of normal operational voltage.

### Abnormal output detection function

  • If there is an abnormality in the output system (detects an open or GND short circuit in harness), the discharge headlight control module turns off the headlights for protection or to prevent part operation errors.
  • If the discharge headlight control module turns off the headlights due to an abnormality in the output system, the discharge headlight control module will maintain them in the off condition until the light switch is turned again from off to on.