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: Combine sensor initialization procedure
1. Set the SST (WDS or equivalent) to the DLC-2
2. Access the active command mode and select the YAWRATE, then follow the
indication on the monitor.
3. Select the LATACCEL and follow the indication on the monitor.
STEERING ANGLE SENSOR REMOVAL/INSTALLATION
(See COMBINATION SWITCH DISASSEMBLY ...
Mazda 6 Service Manual: Average Fuel Economy
The average fuel economy is calculated every minute from the total traveled distance
on the trip meter and the total fuel consumption, and the average fuel economy for
either TRIP A or TRIP B is displayed.
The average fuel economy and trip meters can be reset by pressing the INFO switch
for ...