Monitor GDS Data
- Ignition ON (SSB LED "BLUE") & Vehicle "STOP".
- Connect GDS and select and select "HCU" System.
- Ignition Key ON, EV READY & Engine OFF.
- Perform Actuation Test after selecting "Engine On" in the "Vehicle SW Management".
Specification : Engine starts without Belt Slip noise
- Is the measured data within specifications?
YES
- Check belt condition, Installation condition, contamination by water or foreign materials etc, belt tension codition and etc. Repair or replace as necessary and go to "Verification of Vehicle Repair " procedure.
NO
- Check belt condition, Installation condition, contamination by water or foreign materials etc, belt tension codition and etc. Repair or replace as necessary and go to "Verification of Vehicle Repair " procedure.
- If there is any DTC related Generator (HSG), Check this first and then, move to diagnosis DTC P1A77.
- Substitute with a known-good Generator (HSG) Belt and check for proper operation. If the problem is corrected, replace Generator (HSG) and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
* When replacing, disassembling, and assembling the generator (HSG), the initialization of the resolver should be carried out using the diagnostic tool, and the electric water pump (EWP) should be operated to refill and circulate the coolant.
CAUTION: Non-compliance with the following instructions can induce death or injury caused by electric shock.
Carefully read and follow service information instructions.
Wear insulated gloves, safety glasses and use insulated tools for your safety.
Turn the ignition switch off and Disconnect ground cable of auxiliary battery and Remove the safety plug.
Wait for more than 5 minutes so that the inverter capacitor can be naturally discharged.
Check high voltage terminal on Power Relay Assembly is lower than 30V.
Perform Resolver adaptation after the HPCU or the Driver Motor or the Generator (HSG) is replaced or reinstalled.
When replaced HPCU, Perform air bleeding for HPCU with GDS.