1. Remove the trunk lid trim. (See TRUNK LID TRIM REMOVAL/INSTALLATION)
2. Disconnect the trunk compartment light switch connector.
3. Inspect for continuity between the trunk compartment light switch terminals using an ohmmeter.


Trunk compartment light bulb removal/installation
Courtesy light bulb removal/installationMazda 6 Service Manual: Engine coolant temperature (ect) sensor inspection
Note
Perform the following inspection only when directed.
ECT Sensor Resistance Inspection
1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)
2. Remove the ECT sensor (located above the starter).
3. Place the ECT sensor in water with a thermometer, and heat the water
gra ...
Mazda 6 Service Manual: Dtc c1145, c1155, c1165, c1175
Caution
When attaching the tester lead to the DSC HU/CM connector the SST
(49 G066 004) must be used.
Diagnostic procedure
...