U1962
WarningLost Communication with Level 2 Charging Module
Is it safe to drive?
🟡 Check the vehicle display for drive or charge restrictions and schedule service promptly.
What does U1962 mean?
U-code U1962 means "Lost Communication with Level 2 Charging Module". It is a manufacturer-specific diagnostic trouble code (DTC) in the charging system. A communication failure has been detected — the module responsible for the lost communication with level 2 charging module is not responding on the vehicle network. This warning should be addressed within the next few days to avoid further damage. This code applies to OBD-II compliant electric and hybrid vehicles.
Possible Causes
- CAN bus wiring fault (short, open, or termination resistor failure)
- Faulty control module not transmitting on the vehicle network
- Power supply issue preventing the module from initializing
- Software mismatch or corruption in the affected module
Recommended Actions
- 1 Avoid aggressive driving and schedule a diagnostic appointment within the next 1–3 days
- 2 Scan for all DTCs with an OBD-II scanner — note any related codes stored alongside U1962
- 3 Check CAN bus wiring for damage; verify termination resistance (should be ~120 Ω between CAN-H and CAN-L)
- 4 Verify power supply and ground connections at the affected module
- 5 Clear the DTC, road-test the vehicle, and re-scan to confirm whether the fault returns
- 6 If the fault persists after inspection and clearing, consult an EV-certified technician for component replacement