EMS(Engine Management System)
5-13
CHECKING PROCEDURE
1) Turn off the ignition key.
2) Check to see if the injector coupler has come loose or the wire is peeling off.
If there is no problem, measured the resistance of injector.
3)Disassemble the injector coupler and measure the resistance between injector terminals.
The resistance of injector : 14.5±0.7[
], 20
Remarks : measuring unit for resistance : resistance ‘ R ‘ [
]
4)If there is no problem, check the continuity between each terminal and ground.
The resistance between each terminal and ground : ∞[
]
If resistance value is not normal, replace injector with the new one.
5)If the resistance is normal, turns on the ignition key
- If the fuel pump operated for 3 seconds, the power supply relay of injector is normal.
6) Measure between the voltage of coupler.
Measuring terminal :
BLACK/RED electric wire ~
ground
Measuring voltage : battery voltage – 1.0[V]over
Remarks : Measuring unit of voltage : voltage [V]
7) If the measured voltage is normal,
Check the ‘Blue/Yellow’ electric wire to see if they have been broken or have short-circuited
or if the wire-harness coupler and the ECU coupler are a bad contact (ECU terminal No. 40)
If there is no problem in the electric wires, ECU is broken
Replace the ECU with new one, it rechecks
8) If the measured voltage is not normal,
Check the Black/Red electric wire to see if they have been broken or have short-circuited.
Check the fuel pump relay.
9) After fault repaired, to erase the memorized fault code in the ECU is refer to how to remove the fault code(5-10).
Содержание Roadwin R
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