OBD-II code · Powertrain (generic, extended)
P216C Fuel Injector Group E Supply Voltage Circuit High
The supply voltage on injector group E is above the upper limit. Overvoltage on the group-E supply can mis-time or damage the injectors. Causes: charging-system overvoltage, a stuck supply relay or regulator, or a wiring fault shorting the group-E supply to a higher voltage.
Is it safe to drive with P216C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyCharging system overvoltage
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.7–3 h
- Emissions test
- Likely to fail
- Parts involved
- Fuel Injector Group E
Related codes
- P2148Fuel Injector Group A Supply Voltage Circuit High
- P2151Fuel Injector Group B Supply Voltage Circuit High
- P2154Fuel Injector Group C Supply Voltage Circuit High
- P2157Fuel Injector Group D Supply Voltage Circuit High
- P216FFuel Injector Group F Supply Voltage Circuit High
- P217CFuel Injector Group G Supply Voltage Circuit High
- P217FFuel Injector Group H Supply Voltage Circuit High
- P2169Exhaust Pressure Regulator Vent Solenoid Control Circuit/Open
- P216AFuel Injector Group E Supply Voltage Circuit/Open
- P216BFuel Injector Group E Supply Voltage Circuit Low
- P216DFuel Injector Group F Supply Voltage Circuit/Open
- P216EFuel Injector Group F Supply Voltage Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.