DTC P1C7C-49: Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure [12/2019 - 11/2023]: Description
WARNING: This page is about a different variant/trim than selected.
This DTC is stored if there is insulation malfunction in the high-voltage circuit in the air conditioning system. Possible causes are poor insulation in the compressor with motor assembly, or mixing of any oil other than ND-OIL 11 in the refrigerant cycle.
A high-voltage motor is built into the compressor with motor assembly and is cooled directly with refrigerant. Compressor oil (ND-OIL 11) with high insulation performance is used because leakage of electrical power may occur if regular compressor oil (ND-OIL 8) is used.
WARNING:
- Before inspecting the high-voltage system, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory |
|---|---|---|---|---|
| P1C7C-49 | Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure | High voltage system insulation malfunction |
|
Memorized |