Examination
1. Disconnect the cable from the negative terminal of the battery.
2. Remove the glow plug bus.
3. Visually check that the tire is not torn or bent.
4. Use an ohmmeter to check for conductivity between the ends of the bus.
Note: When checking the conductivity, the busbar should not contact other parts at places (A).
5. Installation of parts is carried out in the reverse order of removal.