Mazda 3 Service Manual: Discharge Headlight Service Warnings

Discharge Headlight Service Warnings

• To prevent electrical shock when replacing the discharge headlight bulb, always perform the servicing with dry hands and in an area where it does not get wet.

• Never probe the discharge headlight bulb connector directly with a finger or tester. Otherwise, it could result in electrical shock. When the light switch is ON, high voltage of approx. 25,000 V flows the discharge headlight bulb connector.

  

  
  

• When the headlights are on, high voltage flows around the discharge headlight bulb and discharge headlight bulb connector. When servicing the discharge headlights while they are illuminated, always perform the servicing with the headlights in their installed condition.

Discharge Headlight Control Module Service Warnings

• Do not use a tester to inspect or disassemble a discharge headlight control module. Otherwise, it could result in electrical shock.

  

  
  

Discharge Headlight Control Module Reuse

• If the discharge headlight control module is damaged, replace the module with a new one. Otherwise, it could result in electrical shock or operation malfunction.

• The discharge headlight control module may temporarily operate normally even though it may have been hit, however, the inside of the module could be damaged. If the control module is reused, inspect the following items related to the discharge headlight bulb illumination, and verify that there is no malfunction.

• Perform the tests for the discharge headlight bulb several times under cold lighting condition (switch on after switching discharge headlight bulb off for approx. 10 min or more) and under warm-up lighting condition (switch off for approx. 1 min after switching discharge headlight bulb on for approx. 15 min or more, and switch on), and verify that the discharge headlight bulb illuminates.

• Inspect the discharge headlight bulb illumination until it illuminates evenly after cold lighting, verify that the discharge headlight bulb illumination has no flicker or uneven brightness level.

• Illuminate the headlight for approx. 30 min using a proper discharge headlight bulb, and verify that the illumination condition is stabilized on the left and right with no difference in brightness level.