Mazda 3 Service Manual: Headlight Leveling Actuator Inspection
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 |
|
|
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+ |
|
|
|
Light switch at OFF position |
1.0 or less |
|||||
|
L |
GND |
Headlight leveling switch Body ground |
Under any condition |
1.0 or less |
|
|
Headlight Bulb Removal/Installation
Halogen Type
Low-beam
1. Disconnect the negative battery cable..
2. Disconnect the connector.
3. Remove the cover.
4. Remove the adaptor.
5. Remove the headlight bulb (LO).
CAUTION ...
High Mount Brake Light Bulb Removal/Installation
4SD
1. Disconnect the negative battery cable..
2. Remove the trunk lid trim..
3. Remove in the order indicated in the table.
1
Connector
2
...
Other materials:
Starter Cut Relay Inspection [MTX]
Advanced Keyless Entry And Push Button Start System Only
1. Disconnect the negative battery cable.
2. Remove the following parts:
a. Front scuff plate (LH).
b. Front side trim (LH).
c. Side wall.
d. Console.
3. Set the bonnet release lever out of the way..
4. Remove the lower panel.. ...
Oil Pressure Inspection [Mzr 2.0, Mzr 2.5]
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Manifold Absolute Pressure (Map) Sensor/Boost Air Temperature Sensor Removal/Installation
[Mzr 2.3 Disi Turbo]
NOTE:
Because the boost air temperature sensor is integrated in the MAP sensor,
replacing the boost air temperature sensor includes replacement of the MAP sensor/boost
air temperature sensor.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove t ...
