P2156
Fuel Injector Group D Supply Voltage Circuit Low
P2156 is an OBD-II diagnostic trouble code meaning: Fuel Injector Group D Supply Voltage Circuit Low. Common causes: open or short circuit in the injector power supply circuit, faulty fuel injector relay. Estimated repair cost: $6–56.
Symptoms
- Misfire in group D cylinders
- Reduced engine power
- Increased fuel consumption
- Rough engine idling
- Check Engine Light Illuminates
Causes
- Open or short circuit in the injector power supply circuit
- Faulty fuel injector relay
- Blown injector circuit fuse
- Problems with the engine control unit (ECU)
- Corrosion of contacts or connectors
How to Fix
- Check the group D injector circuit fuse
- Inspect wiring and connectors for damage
- Check fuel injector relay
- Measure the voltage at the injectors of group D
- If necessary, replace faulty components
Related codes
Error P2156 by Vehicle Brand
FAQ
What does the P2156 code mean?
P2156 is an OBD-II diagnostic trouble code that indicates: Fuel Injector Group D Supply Voltage Circuit Low
What causes a P2156 error code?
The most common causes of P2156 include: Open or short circuit in the injector power supply circuit; Faulty fuel injector relay; Blown injector circuit fuse; Problems with the engine control unit (ECU).
How do I fix a P2156 diagnostic trouble code?
To fix P2156: Check the group D injector circuit fuse. Inspect wiring and connectors for damage. Check fuel injector relay. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2156?
Yes, but get it checked soon
How much does it cost to fix P2156?
The estimated repair cost for P2156 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat