Current trouble
- Connector(s) or wiring harness in the CAN bus lines between the WCM-ECU and the A/C controller assembly (A/C-ECU) or heater controller assembly (A/C-ECU) < vehicles without A/C >, the power supply system to the WCM-ECU, the WCM-ECU itself, or the A/C controller assembly (A/C-ECU) or heater controller assembly (A/C-ECU) < vehicles without A/C > may be defective.