Mazda CX-5 Service & Repair Manual: DRL (Daytime Running Light) System
Outline
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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, and the shift lever is in a position other than P (ATX).
-
The front body control module (FBCM) performs DRL system fail-safe..
Structural View
System Wiring Diagram
Halogen type
Discharge type
Operation (Halogen type)
Operation condition
—: Not applicable|
Engine switch |
Shift lever position (ATX) |
Parking brake switch |
Light switch |
Dimmer switch |
Flash-to-pass switch |
Headlight (LO) |
Headlight (HI) |
DRL mode |
|
ON |
Other than P position |
OFF (Parking brake lever released) |
OFF/TNS/AUTO*1 |
LO |
OFF |
OFF |
ON (DRL) |
ON |
|
ON |
— |
— |
— |
|||||
|
HI |
OFF |
OFF |
ON (DRL) |
ON |
||||
|
ON |
ON |
ON |
OFF |
|||||
|
HEAD |
LO |
OFF |
ON |
OFF |
OFF |
|||
|
ON |
— |
— |
— |
|||||
|
HI |
OFF |
ON |
ON |
OFF |
||||
|
ON |
ON |
ON |
OFF |
|||||
|
ON (Parking brake lever pulled) |
OFF/TNS |
LO |
OFF |
OFF |
OFF |
OFF |
||
|
ON |
— |
— |
— |
|||||
|
HI |
OFF |
OFF |
OFF |
OFF |
||||
|
ON |
ON |
ON |
OFF |
|||||
|
HEAD |
LO |
OFF |
ON |
OFF |
OFF |
|||
|
ON |
— |
— |
— |
|||||
|
HI |
OFF |
ON |
ON |
OFF |
||||
|
ON |
ON |
ON |
OFF |
|||||
|
OFF |
— |
— |
OFF/TNS |
LO |
OFF |
OFF |
OFF |
OFF |
|
ON |
— |
— |
— |
|||||
|
HI |
OFF |
OFF |
OFF |
OFF |
||||
|
ON |
ON |
ON |
OFF |
|||||
|
HEAD |
LO |
OFF |
ON |
OFF |
OFF |
|||
|
ON |
— |
— |
— |
|||||
|
HI |
OFF |
ON |
ON |
OFF |
||||
|
ON |
ON |
ON |
OFF |
*1 If the auto light sensor detects that the TNS and headlights are off when the light switch is in the AUTO position, the DRL illuminates.
1. If the DRL mode operation conditions are met, the front body control module (FBCM) turns on the DRL circuit transistor.
2. When the transistor turns on, the DRL relay turns on.
3. If the DRL relay turns on, the electrical current flows in-line relative to the left/right headlight (HI) circuits and the headlights (HI) turn on at half the brightness of normal illumination.
Operation (Discharge type)
Operation condition
—: Not applicable|
Engine switch |
Shift lever position (ATX) |
Parking brake switch |
Light switch |
Dimmer switch |
Flash-to-pass switch |
Headlight (LO) |
Headlight (HI) |
DRL |
DRL mode |
|
ON |
Other than P position |
OFF (Parking brake lever released) |
OFF/TNS/AUTO*1 |
LO |
OFF |
OFF |
OFF |
ON |
ON |
|
ON |
— |
— |
— |
— |
|||||
|
HI |
OFF |
OFF |
OFF |
ON |
ON |
||||
|
ON |
ON |
ON |
OFF |
OFF |
|||||
|
HEAD |
LO |
OFF |
ON |
OFF |
OFF |
OFF |
|||
|
ON |
— |
— |
— |
— |
|||||
|
HI |
OFF |
ON |
ON |
OFF |
OFF |
||||
|
ON |
ON |
ON |
OFF |
OFF |
|||||
|
ON (Parking brake lever pulled) |
OFF/TNS |
LO |
OFF |
OFF |
OFF |
OFF |
OFF |
||
|
ON |
— |
— |
— |
— |
|||||
|
HI |
OFF |
OFF |
OFF |
OFF |
OFF |
||||
|
ON |
ON |
ON |
OFF |
OFF |
|||||
|
HEAD |
LO |
OFF |
ON |
OFF |
OFF |
OFF |
|||
|
ON |
— |
— |
— |
— |
|||||
|
HI |
OFF |
ON |
ON |
OFF |
OFF |
||||
|
ON |
ON |
ON |
OFF |
OFF |
|||||
|
OFF |
— |
— |
OFF/TNS |
LO |
OFF |
OFF |
OFF |
OFF |
OFF |
|
ON |
— |
— |
— |
— |
|||||
|
HI |
OFF |
OFF |
OFF |
OFF |
OFF |
||||
|
ON |
ON |
ON |
OFF |
OFF |
|||||
|
HEAD |
LO |
OFF |
ON |
OFF |
OFF |
OFF |
|||
|
ON |
— |
— |
— |
— |
|||||
|
HI |
OFF |
ON |
ON |
OFF |
OFF |
||||
|
ON |
ON |
ON |
OFF |
OFF |
*1 If the auto light sensor detects that the TNS and headlights are off when the light switch is in the AUTO position, the DRL illuminates.
1. If the DRL mode operation conditions are met, the front body control module (FBCM) turns on the DRL circuit transistor.
2. When the transistor turns on, the DRL bulbs are illuminated.
DRL (Daytime Running Light) Bulb Removal/Installation
1. Disconnect the negative battery cable..
2. Disconnect the connector.
3. Rotate the DRL bulb in the direction of the arrow (1) shown in the figure
and remove it from the front combination ...
Discharge Headlight Bulb
Purpose, Function
Charges the internal metallic element and emits white light resembling sunlight.
Construction
A mercury-free bulb has been adopted for the discharge headlight bul ...
Other materials:
Shift Control Module Removal/Installation [C66 M R]
Removal
1. Shift the shift lever to the neutral position.
2. Remove the plug hole plate..
3. Disconnect the negative battery cable..
4. Remove the air cleaner and air hose as a single unit..
5. Remove the battery and battery tray..
6. Disconnect the control cable from the transaxle.
a. ...
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 ...
Windshield Washer Nozzle Removal/Installation
1. Remove the following parts:
a. Windshield wiper arm and blade.
b. Cowl grille.
2. Disconnect the windshield washer hose from the windshield washer nozzle..
3. While pressing windshield washer nozzle tabs in the direction of the arrow
(1) shown in the figure, pull the windshield washer ...
