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Mazda CX-5 Service & Repair Manual: Discharge Headlight Bulb

Purpose, Function

Construction

Operation

1. When high DC voltage (approx. 25,000 V) from the discharge headlight control module is input to the electrodes, the insulation between the electrodes is broken down and electrical current flows between the electrodes.

2. When electrical current flows between the electrodes of the discharge headlight bulb, the xenon gas is energized and emits light.

3. When the xenon gas emits light, temperature inside the discharge headlight bulb rises, the metallic iodide vaporizes/separates, and the metallic element discharges and emits light.


Fail-safe

DRL (Daytime Running Light) System
Outline The DRL system automatically switches the headlights to HI beams (50% dim) or illuminates the DRL bulb when the ignition is switched ON (engine on), the parking brake is released, ...

Discharge Headlight Control Module
Purpose Converts DC voltage from the battery to AC voltage and outputs the stabilized voltage to the discharge headlight. Function The discharge headlight control module control ...

Other materials:

Condenser Inspection
1. Inspect the condenser for cracks, damage, and oil leakage. If there is any malfunction, replace the condenser. 2. Visually inspect for bent fins for clogging of foreign material. If any fins are clogged, remove the foreign material. 3. Visually inspect for bent fins. ...

Fuel Pump Unit
Purpose, Function Supplies fuel in the fuel tank to the high pressure fuel pump. Based on the control signal from the PCM, the fuel pump operates by the operation of the fuel pump relay and the fuel pump control module. Construction 2WD The fuel pump unit is installed ...

Engine Coolant Replacement
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system. Tu ...

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