GRJ120, 125 series
RZJ120, 125 series
This manual provides information on the electrical circuits installed on these vehicles, the actual wiring of each system circuit is shown from the point where the power source is received from the battery as far as each ground point.
When troubleshooting any problem, first understand the operation of the circuit where the problem was detected (see System Circuit section), the power source supplying power to that circuit (see Power Source section), and the ground points (see Ground Point section). See the System Outline to understand the circuit