EMS(Engine Management System)
5-8
HOW TO CHECK THE FAULT CODE
There are two methods of checking the fault codes.
Use the MIL in the speedometer and the diagnostic tool.
First) Use the MIL in the Speedometer for checking.
• Turn off the ignition key
• The MIL blinks continuously
• Find the defects by checking the number of lighting, the fault code can be verified (refer to the fault code
table)
Second) The diagnostic tool (refer to scan user’s manual for checking.)
• Turn off the ignition key
• Aassemble the coupler of diagnostic tool with the coupler to check the malfunction of vehicle.
• Turn on the ignition key
• Press the power button of diagnostic tool
• Checks according to diagnostic procedure of diagnostic tool.
Measure the wire harness for checking by connecting the ECU with main wire harness to check the ECU.
It has two coupler to check the terminal.
The wireharness to check the ECU arrangement
❶ Coupler for checking : ECU PIN no. 1,2,3,4,5,9,10,12,17,18,19,20 were connected.
ECU PIN no. 6,7,8,11,13,14,15,16 is not connected.
❷ Coupler for checking : ECU PIN no. 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,37,39,40 were connected.
ECU PIN no. 36 is not connected.
Wire color to check the malfunction diagnosis
-P/W : PINK/WHITE : CAN_L
-P/Y : PINK/YELLOW : CAN_H
-B : BLACK : IGNITION KEY
-G : GREEN : GROUND
Coupler to check the malfunction diagnosis
❶
❷
Third) Use the wireharness for checking
❶ Coupler for checking (ECU 1 - ECU 20 PIN)
❷ Coupler for checking (ECU 21 - ECU 40 PIN)
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