Be sure to read and follow the “General Safety Information
and Caution” before doing any work related with the high voltage
system. Failure to follow the safety instructions may result in serious
electrical injuries.
•
High voltage components: High Voltage Battery Pack Assembly,
Power Relay Assembly (PRA), BMS ECU, Hybrid Power Control Unit (HPCU),
Hybrid Drive Motor, HSG, Electric A/C Compressor, Low DC/DC Converter
(LDC), Power Cable, Electric Compressor etc.
1.
Turn the ignition switch OFF and disconnect the auxiliary 12V battery negative (-) terminal.
2.
Remove the safety plug.
(1)
Remove the safety plug cover (A).
(2)
Unfasten the hook (A) and then remove the safety plug (C) by pulling the lever (B) to the direction of arrow.
3.
Wait for more than 5 minutes so that the capacitor in the high voltage system can be fully discharged.
4.
Measure the voltage between the inverter terminals to check that the capacitor in the inverter is discharged completely
(1)
Remove air cleaner assembly and air duct.(Refer to Engine Mechanical System – “Air Cleaner”)
(2)
Disconnect the inverter power cable (A).
Disconnect the inverter power cable as the procedures below.
(3)
Measure the voltage between the inverter (+) terminal and the inverter (-) terminal.
Less than 30V : High voltage circuit properly shut
More than 30V : Faulty on high voltage circuit
If measured voltage is over 30V even though the safety plug
has been removed properly, there may be a serious problem in the high
voltage circuit. In this case, check DTC and never touch on the high
voltage system.
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Description
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Crankshaft Position Sensor (CKPS) Repair procedures
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the GDS.
Specification: Refer to “Wave Form”
Removal
1.
Turn the ignition switch OFF and disconnect the battery n ...
Kia Optima: High Voltage Shut-off Procedures
General Safety Information and Caution
Description and Operation