OBD Guide

P2150

Fuel Injector Group B Supply Voltage Circuit Low

P2150 is an OBD-II diagnostic trouble code meaning: Fuel Injector Group B Supply Voltage Circuit Low. Common causes: damage to the wiring in the group b injector circuit, blown fuse. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Misfires
  • Check engine light is on

Causes

  • Damage to the wiring in the group B injector circuit
  • Blown fuse
  • Faulty injector relay
  • Problems with the engine control unit (ECU)
  • Poor contact in injector connectors

How to Fix

  1. Check the condition of the fuses and injector relays
  2. Inspect the wiring and connectors of group B injectors
  3. Check voltage at group B injectors
  4. Test injector resistance
  5. Replace damaged components if necessary

Related codes

Error P2150 by Vehicle Brand

FAQ

What does the P2150 code mean?

P2150 is an OBD-II diagnostic trouble code that indicates: Fuel Injector Group B Supply Voltage Circuit Low

What causes a P2150 error code?

The most common causes of P2150 include: Damage to the wiring in the group B injector circuit; Blown fuse; Faulty injector relay; Problems with the engine control unit (ECU).

How do I fix a P2150 diagnostic trouble code?

To fix P2150: Check the condition of the fuses and injector relays. Inspect the wiring and connectors of group B injectors. Check voltage at group B injectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2150?

Limited driving only, diagnose soon

How much does it cost to fix P2150?

The estimated repair cost for P2150 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat