U2016

What does U2016 mean?

U-code U2016 means "Signal Link Short to Ground (Non SCP) / From NGV Module". It is a generic OBD-II diagnostic trouble code (DTC) in the vehicle network (CAN/LIN bus). The circuit has a short to ground, meaning an unintended path to chassis ground exists in the signal link short to ground (non scp) / from ngv module wiring. 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

• Chafed or pinched wire contacting the vehicle chassis or ground plane
• Corroded connector allowing moisture to create a ground path
• Internally shorted sensor or actuator
• Damaged wiring insulation caused by heat, abrasion, or rodent damage

Recommended Actions

1. 1 Avoid aggressive driving and schedule a diagnostic appointment within the next 1–3 days
2. 2 Scan for all DTCs with an OBD-II scanner — note any related codes stored alongside U2016
3. 3 Inspect wiring harness for chafed insulation, pinched wires, or contact with metal surfaces
4. 4 Measure voltage/resistance at the connector with the harness disconnected to locate the short
5. 5 Clear the DTC, road-test the vehicle, and re-scan to confirm whether the fault returns
6. 6 If the fault persists after inspection and clearing, consult an EV-certified technician for component replacement

Related Network fault codes