Code result
P2A6C
Alternative Fuel Rail Pressure Regulator Pressure Sensor Circuit High
High severity
What it means
Voltage on the inlet pressure sensor signal line of the alternative fuel rail pressure regulator is above the expected window. Wire shorted to B+ or sensor open.
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
Signal wire shorted to B+
highOne of the most commonly reported causes for this code — check this first.
Open pressure sensor
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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