Mazda 3 Service Manual: Headlight Leveling Actuator Inspection
NOTE:
-
Headlight leveling actuator are integrated with the front combination light.
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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)”.
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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:
Body Control Module (Bcm) Inspection
1. Remove the following parts:
a. Front scuff plate (LH).
b. Front side trim (LH).
c. Upper panel.
d. Shift knob (MTX).
e. Selector lever knob (ATX).
f. Shift panel.
g. Side wall.
h. Console.
2. Set the hood release lever out of the way..
3. Remove the lower panel. (driver-side). ...
Trunk Lid Latch Switch Inspection
1. Disconnect the negative battery cable..
2. Remove the trunk lid trim..
3. Remove the trunk lid latch and lock actuator..
4. Press the latch in using a flathead screwdriver to inspect the latch lever
condition.
5. Verify that the continuity is as indicated in the table.
I ...
Condenser Removal/Installation
1. Disconnect the negative battery cable..
2. Discharge the refrigerant..
3. Drain the engine coolant..
4. Remove the air cleaner..
5. Remove the aerodynamic under cover No.2..
6. Remove the aerodynamic under cover No.1..
7. Remove the front bumper..
8. Disconnect the radiator hose fro ...
