Описания по кодам неисправностей топливной системы JAC HFC1041P73K1C3V
1）Only when in current steady state fault can you maintain, or else it will cause wrong diagnosis;
2）”Multimeter” mentioned below is digital multimeter, and it’s forbidden to check electrical control system by indicator-type multimeter;
3）If fault code indicates that some circuit voltage is too low, it indicates there is short circuit or open circuit to grounding in the circuit; if fault code indicates that some circuit fault, it indicates there is open circuit or several circuits fault in the circuit.
1）If fault code can’t be erased, the fault is steady state fault; if it’s occasional fault, firstly check whether there is loosen phenomenon in wiring harness connector;
2）When maintaining, don’t ignore influence of vehicle maintenance condition, cylinder pressure, battery power to system.
3、Losing Efficacy Strategy
According to fault state of electrical control system, running strategy is divided into 4 classes:
① First class: default value ② Second class: reduce torque (limit torque) ③ Third class: go home laming (electronic accelerator lose efficacy, engine speed gets limited) ④ Fourth class: stop engine.
Fault Code Diagnosis
1）Fault code-Main relay
Fault code—Brake switch
Fault code—Water in fuel level sensor
Fault code—Starter relay
Fault code—Compressor relay
Note: The fault code only is compressor relay fault, not involved compressor.
Fault code—Exhausting brake relay
Note: The fault code only is exhausting brake relay fault, not involved exhausting brake valve.
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