Mazda 3 Quiz
Body

Headlight Leveling Actuator Inspection

In this manual: Body
Vehicle general — 15Accessories — 111Body — 339Brakes — 71Drivetrain — 143Electrical — 58Engine — 251HVAC — 72Restraints — 15Steering — 32Suspension — 41
~1min read
NOTE:

  • Headlight leveling actuator are integrated with the front combination light.

  • For the actuator inspection of the headlight auto leveling system, perform the headlight leveling actuator operation inspection..

1. Measure the voltage at each terminal is as indicated in the Terminal Voltage Lists.

  • If the voltage is not as specified in the Terminal Voltage Lists, inspect the parts under “Inspection item (s)”.

    • If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the front combination light.

Terminal Voltage List (Reference)



Terminal Signal Connection Test condition Voltage (V)/Continuity Action

F

Headlight leveling actuator signal

Headlight leveling switch

Light switch at HEAD position

Switch position 0 position

approx. 10.5

  • Headlight leveling switch

    (See HEADLIGHT LEVELING SWITCH INSPECTION.)

  • Related wiring harness

Switch position 1 position

approx. 9.2

Switch position 2 position

approx. 6.2

Switch position 3 position

approx. 4.9

I

Headlight leveling actuator power supply

Headlight relay (LO)

Light switch at HEAD position

B+

  • Headlight relay (LO)

    (See RELAY INSPECTION [SKYACTIV-G 2.0].).

  • Related wiring harness

Light switch at OFF position

1.0 or less

L

GND

Headlight leveling switch

Body ground

Under any condition

1.0 or less

  • Headlight leveling switch

    (See HEADLIGHT LEVELING SWITCH INSPECTION.)

  • Related wiring harness

Test yourself

A quick Mazda 3 quiz: every answer comes with an explanation and a link to the manual page.