Page 2203 - Foton Workshop Manual - Tunland (AT)

WIRING - INTRODUCTION TO CIRCUITS 71-1

INTRODUCTION TO CIRCUITS

INTRODUCTION TO CIRCUITS

This manual describes circuits on the vehicle, which are divided into different systems
according to functions. Each circuit system includes power supply, fuse, relay, control
elements, and the relationship between the electric equipment and the earth point. (All the
ignition switches shown in the circuit diagrams are in OFF position.)
In case any failure occurs in the system circuit, firstly, you should understand the operating
principle of the circuit (see the section of System circuit diagram). Secondly, the status of
power supply (see the section of Power supply). Finally, the operating procedures of the
circuit (see the section of System overview). When you have been clear about the working
status of the whole circuit, you can start analyzing and troubleshooting to get rid of the failures
(according to relays, control elements, electric equipment, harness connectors, sensors,
actuators, switches, earth point, electrical connector position and harness diagram of the
system.) 71

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