2026-03-30
Low Internal Isolation Diagnostics - HV System (Test)
교정 코드 44500300600 0.90 메모: 절차에서 명시적으로 언급하지 않는 한 위에 나열된 교정 코드 및 FRT는 연결된 절차를 포함하여 이 절차를 수행하는 데 필요한 모든 작업을 반영합니다. 명시적으로 지시하지 않는 한 교정 코드를 누적하지 마십시오. 참고: FRT와 그 생성 방법에 대한 자세한 내용은 표준 정비 작업시간의 내용을 참조하십시오. 메모: 아래 절차를 수행할 때 개인 보호의 내용을 참조하여 적절한 PPE를 착용했는지 확인하십시오. 참고: 안전하고 건강한 작업 사례는 인체공학적 주의 사항의 내용을 참조하십시오.
경고
이 절차는 초안입니다. 따라서 검증은 되었지만 경고 및 주의 사항이 누락되었을 수 있습니다. 고전압 시스템 및 구성 요소에서 또는 그 근처에서 작업하는 경우에는 안전 요구 사항을 준수하고 최고 수준의 주의를 기울여야 합니다.
- 2026-03-18: Released new procedure.
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Prepare for HV battery removal
참고Due to the potential issues associated with an isolation fault, customer and/or insurance approval is not needed to remove the HV battery while investigating the fault, For high voltage battery packs that have a low internal isolation condition and/or liquid ingress, It is crucial to remove the fluid promptly, HV gloves, Leather over-gloves, Safety glasses, And safety shoes must be worn at all times while handling a vehicle and/or HV battery pack with an internal isolation condition, Refer to Toolbox article 7410000
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Remove all items from pockets and ensure not wearing metal items
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Inspect HV insulating gloves
참고Check gloves for damage prior to use, Refer to service document TN-15-92-003, for information on inspecting HV gloves.
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Put on HV insulating gloves and leather over gloves
참고Use HV cut resistant insulated gloves or HV insulating gloves and leather over gloves, HV Insulating gloves must be worn any time a Hioki Tester or Hi-Pot Tester is used, Refer to service document TN-15-92-003 R5 for PPE requirements depending on vehicle configuration.
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Secure vehicle outside of workshop
참고Secure vehicle in an outdoor area with 15M of space around it in every direction
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Install wheel chocks onto rear wheels
참고See HV battery RR procedure for steps
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Release electronic parking brakes
참고See HV battery RR procedure for steps
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Power down vehicle
참고Refer to HV battery RR procedure for steps
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Download and Install PCAN driver
참고After software has been downloaded install drivers to laptop.
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Connect CAN dongle to laptop via USB port
경고Do not place anything on top of the HV battery other than the high voltage “Danger” placard참고1x connector
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Connect HV battery communication harness to HVC and CAN dongle
경고Do not place anything on top of the HV battery other than the high voltage “Danger” placard참고2x connector, ensure the PCAN is connected to the VEH CAN breakout
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Connect battery communication harness to power supply
경고Do not place anything on top of the HV battery other than the high voltage “Danger” placard참고Use the 12V output of the power bank
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Connect phone to charging cable and charging cable to power supply
경고Do not place anything on top of the HV battery other than the high voltage “Danger” placard참고2x connector, Press ''ON'' to turn ON the power bank. This is necessary to prevent the power bank from shutting down automatically if only connected to the BMS, which does not draw enough power for the power bank to remain powered / active.
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Open HV Battery Communication Tool in Toolbox
참고Navigate to the HV Battery Communication Tool on the left hand Toolbox menu
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Check that PCAN is detected by laptop
참고If PCAN is detected there will be a message on top of the HV Battery Communication Tool, "Select an ECU depending on the HV battery type. Press the Help button for more info on ECU compatibility."
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Select ECU
참고Select HVBMS ECU in drop down menu
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Check HV Battery vitals
참고Refer to Toolbox article 41977, The HV vitals are not stable if any of the following is true:Module temperatures are significantly higher than ambient temperature.Module temperatures min and max deviate from each other more than 5 degrees C.Brick voltages min and max deviate more than 20 mV.If vitals are not stable, isolate the pack or vehicle in 30 meter bubble.
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Disconnect phone and phone charging cables from power supply
경고Do not place anything on top of the HV battery other than the high voltage “Danger” placard참고2x connector
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Disconnect battery communication harness from power supply
경고Do not place anything on top of the HV battery other than the high voltage “Danger” placard참고1x connector
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Disconnect HV battery communication harness from HVC and CAN dongle
경고Do not place anything on top of the HV battery other than the high voltage “Danger” placard참고2x connectors
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Disconnect CAN dongle from laptop
참고1x connector
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Prepare work area
참고Prepare a workspace around a two post lift with nearby access to HV PPE, Battery table, and necessary tooling
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Remove high voltage battery pyro disconnect
참고See HV battery RR procedure for steps
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Remove rocker covers
참고Refer to removal steps in HV battery RR procedure
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Install Universal Lift Pad Adapters onto lift arms
참고4x adapters, Refer to removal steps in HV battery RR procedure
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Raise vehicle fully and lower lift onto locks
참고Set vehicle to comfortable working height, Ensure an audible click of locks on both sides is heard before lowering, Vehicle may tilt to the side if both locks are not engaged
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Inspect HV battery for dents, fluid leaks, or other signs of instability
참고If found, refer to Toolbox article 7396600
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Inspect HV battery for coolant leaks or fluid ingress
참고Refer to Toolbox article 40073, If liquid ingress is found then proceed to HV battery removal, If HV battery removal is not possible continue procedure with pack in vehicle, Continue to relevant procedure for fluid ingress removal as needed
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Remove rear battery enclosure skid plate from HV battery pack
참고See HV battery RR procedure for steps
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Remove LH flood port 2.0 from HV battery
참고8x tabs, Rotate as needed so that the relief is accessible, Pry between the enclosure and flood port
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Remove RH flood port 2.0 from HV battery
참고8x tabs, Rotate as needed so that the relief is accessible, Pry between the enclosure and flood port
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Remove HV battery breather assemblies
참고6 nuts, 10 mm, 9 Nm
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Inspect HV battery for moisture ingress
참고Inspect breather and interior of battery for moisture ingress, If moisture ingress is present then proceed to HV battery replacement
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Remove HV battery from vehicle
참고Refer to HV battery removal procedure for applicable vehicle model
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Move HV battery to a suitable work area
참고Hv battery must have 15M of space around it in every direction
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Place HV Danger placard on top of battery
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Place barricades around work area
참고Note location of extinguishers and HV rescue hook
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Ensure entire work area is clear
참고Including above and below battery
- Remove HV insulating gloves