1. Connect the connector to the running light unit.
2. Connect the negative battery cable.
3. Measure the voltage at the running light unit using voltmeter.
4. If the value are not as specified in the Terminal Voltage List (Reference), inspect the parts under Action and related wiring harnesses.
5. If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the running light unit.
Terminal Voltage List (Reference)



Running light unit removal/installationMazda 6 Service Manual: Head Restraints
Your vehicle is equipped with head restraints on all outboard seats and the rear
center seat. The head restraints are intended to help protect you and the passengers
from neck injury.
WARNING
Always drive with the head restraints installed when seats are being used
and make sure they are pro ...
Mazda 6 Service Manual: Evaporator temperature sensor inspection
1. Turn the AUTO switch on.
2. Set the temperature control at MAX COLD (Turn the left).
3. Turn the A/C switch.
4. Set the RECIRCULATE mode.
5. Close all doors and windows.
6. Wait for 5 minutes.
7. Remove the glove compartment.
8. Disconnect the evaporator temperature sensor.
9. Measure t ...