Code result
P2148
Fuel Injector Group A Supply Voltage Circuit High
High severity
What it means
The injector group A supply voltage exceeds the calibrated upper limit. Often a sign of a short to battery voltage on the supply line, an over-charging alternator or an internal driver failure.
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
Wire shorted to battery voltage
highOne of the most commonly reported causes for this code — check this first.
Charging system overvoltage
lowLess common, but worth ruling out after the more likely causes.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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