Mazda 6 Service Manual: Electrical troubleshooting tools
Jumper wire
- A jumper wire is used to create a temporary circuit. Connect the jumper wire between the terminals of a circuit to bypass a switch.
Caution
- Do not connect a jumper wire from the power source line to a body ground. This may cause burning or other damage to wiring harnesses or electronic components.
Voltmeter
- The DC voltmeter is used to measure circuit voltage. A voltmeter with a
range of 15 V or more
is used by connecting the positive (+) probe (red lead wire) to the point where voltage will be measured and the negative (-) probe (black lead wire) to a body ground.
Ohmmeter
- The ohmmeter is used to measure the resistance between two points in a circuit and to inspect for continuity and short circuits.
Caution
- Do not connect the ohmmeter to any circuit where voltage is applied. This will damage the ohmmeter.
Connectors
Data link connector
Insert the probe into the terminal when connecting a jumper wire to the
data link connector.
Caution
Inserting a jumper wire probe into the data link connector
ter ...
Precautions before welding
Vehicles have various electrical parts. To protect the parts from excessive
current generated when welding, be sure to perform the following procedure.
1. Turn the ignition switch to the LOCK posit ...
Other materials:
Mazda 6 Service Manual: Ignition switch inspection
1. Disconnect the negative battery cable.
2. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION)
3. Disconnect the ignition switch connectors.
4. Inspect for continuity between the ignition switch terminals using an
ohmmeter.
If not as specified, replace the ignition switch.
...
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 ...