Code result

P2149

Fuel Injector Group B Supply Voltage Circuit/Open

High severity

What it means

The ECU detects an open or missing supply voltage on injector group B. The injectors on this bank cannot be energized, leading to misfire on the affected cylinders.

Is it safe to drive?

No — stop driving

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

  • Blown injector group B fuse

    high

    One of the most commonly reported causes for this code — check this first.

  • Faulty injector supply relay

    medium

    A plausible cause — test and verify before replacing parts.

  • Pin pushed back out of connector body

    low

    Less common, but worth ruling out after the more likely causes.

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